JP2010037736A - Waterproof sheet for wall, method for installing the same, and building using the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof sheet for a wall edge, which can conform an on-side installation shape in the installation of the waterproof sheet on the wall edge of a roof, for easy construction. <P>SOLUTION: In this waterproof sheet 40 for the wall edge, an elastomer sheet 1 with tear resistance and heat shrinkability is stuck on the front side of an aluminum foil 3 by means of an adhesive 2, and a multilayer waterproof sheet 5 coated with a resin-based coating material 4 is used for the backside of the aluminum foil 3. The waterproof sheet 40 is characterized as follows: longitudinal extensibility is in the range of 125-175%; and lateral extension length is in the range of 10-80 mm. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a waterproof sheet for a wall used to cover a wall of a roof of a building, and particularly to a wall edge that can maintain a shape retaining property and a waterproof property for a very long period even for a covering region having a complicated shape. It relates to a waterproof sheet. Moreover, this invention relates to the installation method of the waterproof sheet for a wall which constructs using the waterproof sheet for a wall near the wall among the roofs of a building. Moreover, this invention relates to the building using the installation method of the waterproof sheet for a wall constructed using the waterproof sheet for a wall near a wall.

  In traditional wooden single-family houses and wooden structures in Japan, roof soil, which is a mixture of lime, sand, clay, etc., is commonly used as a face door material used around tiled ridges and walls. (See Patent Document 1). The reason why roof soil is used in this way is because high-quality clay was easily obtained in Japan, and this situation is common in Korea and China where regional and cultural circumstances are common. Is also considered to be the same.

  On the other hand, in Europe, the situation is different, especially in areas that are colder than Japan, such as Germany, because the chimney of the fireplace for heating protrudes from the roof, so at the junction between the tile roof and the chimney It has been proposed to use a waterproof sheet for a wall in which a polyisobutylene resin and an aluminum metal net are laminated (Patent Document 3). Also in Japan, a type of house in which a ventilation opening is provided on the roof has been proposed, and a face door material using a sponge (Patent Document 2) has been proposed as a waterproof sealant for such a ventilation opening. ing. As such a sponge, for example, a sponge made of synthetic rubber such as EPDM (Ethylene Propylene Methylene Linkage / ethylene propylene rubber) or butyl rubber is used (see Patent Document 4 [0021]).

  Furthermore, a type of prefabricated house in which a skylight is provided on the roof has been proposed, and a waterproof sheet that is lighter than roof soil has been proposed for such a skylight (Patent Document 4). This skylight waterproof sheet is a roof waterproof sheet in which a deformable and self-holding metal sheet is laminated and fixed to a crosslinked rubber or resin sheet, and then folded back in the direction perpendicular to the width direction. A polymerization part is formed.

Japanese Patent No. 3196058 JP 2005-325592 A DE 3642063A1 Japanese Patent No. 3702277

  Currently, there are roughly two types of materials and construction methods for waterproofing construction on roof ridges and walls, each of which has a problem. The first type is wet construction (Patent Document 1). However, as an inherent restriction in wet construction, the roof soil used requires the operator's skill and construction time for construction, and because it is heavy, it has been a cause of weakening the earthquake resistance of wooden buildings . In addition, high-quality clay has been mined by years of mining, making it difficult to arrange raw materials.

  The second type is dry construction, and each proposal is made in Patent Documents 2 to 4, but each dry construction is not perfect and has its own problems. First, regarding the face door material using the sponge disclosed in Patent Document 2, in addition to the bird damage that the sponge part is struck by birds, it is difficult to construct the roofing material without any gaps There was also.

  Subsequently, in the waterproof sheet disclosed in Patent Document 4, a flexible sheet having water resistance is refracted and laminated in a direction perpendicular to the longitudinal direction and used as a waterproof material for walls and roof tiles. . However, when considering the installation of the waterproof sheet on the roof ridge or near the wall, it is desirable that the height can be adjusted because there are roof materials and roof gradients of various designs as described above. In addition, the roof ridge and walls are generally constructed by the operator along the unevenness of the roof material by hand, but sometimes it is preferable to shape the waterproof sheet by tapping with a wooden mallet, etc. If the material is thick and hard, the space between the folded overlap portions must be increased, and it is not easy for the operator to stretch the waterproof sheet without any gaps.

  Furthermore, it is desirable to maintain the waterproof performance of aluminum sheets for waterproof sheets for decades in a harsh environment that is exposed to direct sunlight like a roof. Has a problem that it cannot corrode against moisture and cannot withstand re-installation. In conventional Japan, there has been an advocacy for the quantitative fulfillment of houses, and there was a view that it would be sufficient if the life span was about 23 years, which is the useful life in the evaluation of the property tax of wooden houses. Needs for a 100-year house are also being recognized due to soaring resource prices, and it goes without saying that the waterproof sheet should have a longer lifetime.

  Furthermore, as a common problem in dry construction, since it is common to employ a method of bonding adhesives such as butyl tape and acrylic tape to roof materials such as tiles, peeling from roof materials after aging There was a problem that caused.

  The present invention solves the above-mentioned problems, and the first invention is to provide a waterproof sheet for a wall that can be easily constructed so that the installation of the waterproof sheet on the wall of the roof conforms to the field installation shape. Objective. The second invention relates to a method for installing a waterproof sheet for a wall, which is suitable for use in the case of construction using a waterproof sheet for a wall at the wall of a building.

  The multilayer waterproof sheet used in the present invention for solving the above-described problems is obtained by applying an elastomer sheet 1 having tear resistance and heat shrinkability to the surface side of an aluminum foil 3 using an adhesive 2 as shown in FIG. The resin-based paint 4 is coated on the back side of the aluminum foil 3.

  According to this multilayer waterproof sheet, since the elastomer sheet 1 has plasticity and durability, it is suitable for use as a waterproof sheet for roofs. The aluminum foil 3 is formed by laminating and laminating the elastomer sheet 1, thereby imparting shape retention, heat insulation, and fire resistance to the multilayer waterproof sheet, and preventing thermal shrinkage when the elastomer sheet 1 is heat shrinkable. Can do. The pressure-sensitive adhesive 2 adheres between the two layers of the elastomer sheet 1 and the aluminum foil 3, and relaxes the stress generated between the two layers generated during the bending process, thereby facilitating the bending process. Since the resin-based paint 4 is coated, the usual purpose of improving durability and corrosion resistance is achieved, and the roof shape and the wall-side shape to be covered with the multilayer waterproof sheet 5 have a large curvature like a tip. Since it is a shape, even when the multilayer waterproof sheet 5 needs to be extremely deformed and covered, the aluminum foil 3 can be prevented from being torn and the waterproof property is improved.

  Preferably, in the multilayer waterproof sheet, the elastomer sheet is further characterized by being chlorosulfonated polyethylene or EPDM. According to the multilayer waterproof sheet configured as described above, since chlorosulfonated polyethylene or EPDM has durability, the durability of the elastomer sheet is enhanced and it is suitable for use as a waterproof sheet for roofs. In particular, since chlorosulfonated polyethylene has excellent colorability, it can freely correspond to the color of the roofing material. In addition, chlorosulfonated polyethylene is excellent in heat resistance, weather resistance, cold resistance, bending resistance, salt resistance, etc., so it can be used in cold, tropical, fireproof, strong wind and salt damage areas. It can be used and is suitable for use as a waterproof sheet for roofs.

  Preferably, in the multilayer waterproof sheet, the chlorosulfonated polyethylene sheet is uncrosslinked. According to the multilayer waterproof sheet configured as described above, the chlorosulfonated polyethylene sheet 1 does not require a crosslinking step, so that it can be provided at a low cost and can be used as a roof waterproof sheet because it is naturally crosslinked in a normal temperature environment. . Since the uncrosslinked chlorosulfonated polyethylene is a chlorosulfonated polyethylene that naturally crosslinks in nature, it is bonded to the surface of the aluminum foil of the multilayer waterproof sheet 5, so that the multilayer waterproof sheet is covered with the roof shape. Even if the multilayer waterproof sheet is deformed in conformity with the shape of the wall or the wall, shape retention is maintained because it is solidified in the deformed state in the subsequent natural crosslinking process.

  Preferably, in the present multilayer waterproof sheet, the chlorosulfonated polyethylene sheet is characterized by not containing a chemical that promotes crosslinking of rubber. Since it does not contain chemicals that promote rubber cross-linking, even if the multi-layer waterproof sheet is deformed by adapting the multi-layer waterproof sheet to the shape of the roof or the wall to be covered, the process of natural cross-linking over a long period of time Since it solidifies in the deformed state, shape retention can be maintained.

  Preferably, in the multilayer waterproof sheet, the chlorosulfonated polyethylene sheet further has a thickness of 0.15 mm to 0.45 mm. When the chlorosulfonated polyethylene sheet is thin, a general-purpose laminating apparatus or the like can be used for manufacturing the multilayer waterproof sheet, and the manufacturing cost is reduced.

Preferably, in the present multilayer waterproof sheet, the pressure-sensitive adhesive 2 further contains an acrylic pressure-sensitive adhesive, and the coating amount is 25 to 75 [g / m ² ]. According to the multilayer waterproof sheet configured as described above, since the acrylic adhesive is used as the adhesive 2, the degree of softening by heat is smaller than that of butyl rubber or polyisobutylene, and the viscosity is moderately present. In addition, the stress generated between the two layers of the elastomer sheet 1 and the aluminum foil 3 generated during the bending process is alleviated to facilitate the bending process of the multilayer waterproof sheet. Further, when an acrylic pressure-sensitive adhesive is used as the pressure-sensitive adhesive 2, the viscosity is small compared to the viscosity of a rubber-based pressure-sensitive adhesive such as butyl, a general-purpose laminating apparatus can be used, and the range of manufacturing apparatus selection is widened.

  Preferably, in the multilayer waterproof sheet, the aluminum foil 3 further has a thickness of 30 μm to 120 μm. The thickness of the aluminum foil 3 is the thickness and heat shrinkage of the elastomer sheet 1 to be bonded together, the workability when the worker deforms the multilayer waterproof sheet to correspond to the unevenness of the roof material, and the multilayer waterproof sheet is manufactured. It depends on the capacity of the weaving machine used for the purpose. And as thickness of the aluminum foil 3 which satisfies these three requirements, 30 micrometers-120 micrometers are preferable.

  Preferably, in the multilayer waterproof sheet, the resin-based paint 4 further includes at least one type of resin system such as an epoxy resin system, an amino resin system, and a melamine resin system, and the coating thickness of the resin-based paint is 0. .5 μm to 5 μm. According to the multilayer waterproof sheet 5 configured as described above, since the resin-based paint 4 containing at least one type of resin system of epoxy resin, amino resin, and melamine resin is coated, durability and corrosion resistance are coated. The aluminum foil 3 is torn even if the multilayer waterproof sheet 5 is adapted to the roof shape or the shape of the wall to be covered and the multilayer waterproof sheet 5 is extremely deformed. Can be prevented, and the waterproofness is increased.

  Preferably, in the present multilayer waterproof sheet, the thickness of the aluminum foil 3 is determined so that the deformation of the multilayer waterproof sheet 5 due to the heat shrinkability of the elastomer sheet 1 can be prevented and the shape of the multilayer waterproof sheet 5 can be maintained. The thickness of the agent 2 is determined so that the stress generated between the elastomer sheet 1 and the aluminum foil 3 when the multilayer waterproof sheet 5 is bent is alleviated, and the thickness of the resin-based paint 4 is determined as the multilayer waterproof sheet 5. It is characterized in that it is determined so that the aluminum foil 3 can be prevented from being broken even when it is bent into a shape having a protruding end.

  The multilayer waterproof sheet used in the present invention that solves the above-mentioned problems is, for example, as shown in FIG. 1, a shape-retaining means for maintaining a shape in a covering state suitable for a roof shape to be covered in a room temperature environment. And long-term shape-retaining means for storing the shape in the covering state by natural crosslinking in a room temperature environment. Typically, aluminum foil is used as the shape retaining means during construction. As long-term shape-retaining means, uncrosslinked chlorosulfonated polyethylene may be used. Since the uncrosslinked chlorosulfonated polyethylene is a chlorosulfonated polyethylene that naturally crosslinks in nature, the multilayer waterproof sheet is attached to the surface of the aluminum foil of the multilayer waterproof sheet 5 of the present invention. Even if the multilayer waterproof sheet is deformed so as to be adapted to the roof shape or the shape of the wall, it is solidified in the deformed state in the process of subsequent natural crosslinking, so that the shape retention can be maintained.

  Here, the normal temperature environment means that no special heating or cooling is performed at the time of construction. In addition to a comfortable environment for people such as spring and autumn, an environment that appears in a natural state such as winter and summer is also included. Natural cross-linking means a state in which cross-linking proceeds due to temperature and moisture under natural environment by sunlight and air. Here, crosslinking is a reaction that links polymers in polymer chemistry and changes physical and chemical properties, and one type of crosslinking reaction is vulcanization. Here, vulcanization is a process of adding sulfur or the like to ensure elasticity and strength when processing rubber-based raw materials.

  The roof waterproof sheet used in the present invention for solving the above-described problems is, for example, as shown in FIG. 2B, in the middle of the multilayer waterproof sheet 5 in the longitudinal direction and in the transverse direction perpendicular to the longitudinal direction. The joining portion T is formed, and the two-way folded state is formed in which the longitudinally folded portion L is formed over the longitudinal direction. Then, for example, by constructing the roof waterproof sheet 10 in the two-way folded state as shown in FIG. 3, for example, the wall waterproof sheet 40 having stretchability in the lateral direction in addition to the longitudinal direction is formed. It can be used as a member for

  According to the waterproof sheet for roof of the present embodiment, the waterproof sheet for roof 10 in the two-way folded state is used. By extending the mating portion L, not only can the unevenness of the roofing material be handled, but it can also serve as a water return. Moreover, since it is a sheet having the elasticity of the thin elastomer sheet 1 in the transverse direction and the shape retaining property of the aluminum foil 3 for the operator, it is easy to be familiar with the hand, so that it is difficult for construction failure to occur and the construction time is shortened. .

  Preferably, in the waterproof sheet for the roof of the present invention, a transverse direction folded overlap portion T is further provided at a predetermined interval. According to the roof waterproof sheet 10 configured in this way, by extending the transverse direction folded overlap portion T so as to follow the unevenness of the roof material, the roof waterproof sheet 10 can be adhered to the roof material without a gap, and the predetermined interval is set. By providing the transverse direction folded overlap portion T apart, the range of the transverse direction folded overlap portion T that is excessive without being stretched is reduced, and the utilization efficiency of the roof waterproof sheet 10 is increased.

  Preferably, in the waterproof sheet for roof, for example, as shown in FIG. 3, adhesive tapes 45 and 47 with release papers 46 and 48 are attached to at least a part of the surface of the resin-based paint in the longitudinal direction. It is characterized by that. According to the roof waterproof sheet 10 configured as described above, it can be rolled into a roll shape by attaching the release papers 46 and 48 of the adhesive tapes 45 and 47. In addition, after the roof waterproof sheet 10 is temporarily fixed to the roof material 52 or the wall material 51 with staples or the like, the longitudinal skirt of the roof waterproof sheet can be pushed down while peeling the release papers 46 and 48, thereby saving labor in construction. Can be made.

  Preferably, the waterproof sheet for roof is further characterized by being rolled into a product shape before construction. According to the roof waterproof sheet 10 configured in this manner, the roof waterproof sheet 10 can be easily distributed and carried on the roof by being wound in a roll shape.

  The waterproof sheet for a wall which is the first type invention of the first invention which solves the above-mentioned problem is obtained by using, for example, an adhesive sheet 2 and an elastomer sheet 1 having tear resistance and heat shrinkability as shown in FIG. A waterproof sheet 40 for a wall using a multilayer waterproof sheet 5 bonded to the front surface side of the aluminum foil 3 and coated with a resin-based paint 4 on the back surface side of the aluminum foil 3, and has a longitudinal stretchability of 125% to The stretching length in the transverse direction is 10 mm to 80 mm.

  According to the waterproof sheet for a wall 40 configured as described above, for example, as shown in FIGS. 3 and 6, when the length in the width direction of the wall surface 51 is set to 100, the unevenness of the roofing material is assumed. Since the surface length in consideration of 145 is 145, the construction can be carried out if a stretching ratio higher than this is ensured, but the roof material with less unevenness may be 125. Thereby, useless material cost can be suppressed. Moreover, since it is necessary for the hem part 44 after extending | stretching not to come out from the rain retainer sheet metal 56 about extending | stretching to a horizontal direction, since extending | stretching width should just ensure 10 mm-80 mm, it suppresses useless material cost. be able to.

  The waterproof sheet for a wall which is the second type invention of the first invention which solves the above-mentioned problems is obtained by using an adhesive 2 with an elastomer sheet 1 having tear resistance and heat shrinkage, for example, as shown in FIG. A waterproof sheet 40 for a wall using a multilayer waterproof sheet 5 bonded to the front surface side of the aluminum foil 3 and coated with a resin-based paint 4 on the back surface side of the aluminum foil 3, in the longitudinal direction near the center in the longitudinal direction. It is characterized in that a fold part 49 is provided. According to the waterproof sheet for a wall 40 configured in this way, the fold portion 49 is opened by a predetermined angle so as to conform to the shape of the wall, and further, the overlapped portion L in the longitudinal direction is extended, whereby the roof material 52 is expanded. The adhesive tape 47 can be bonded to the valley portion G of the adhesive.

  Preferably, in the waterproof sheet for a wall according to the second type invention of the first aspect of the present invention, as shown in, for example, FIGS. 4, 6, and 11, it is further bonded to the roofing material 52 as viewed from the fold portion 49 in the longitudinal direction. About the skirt part side to perform, the length of the transverse direction in the state which does not extend | stretch the longitudinal direction folding superposition part L is good in it being 70 mm-120 mm. If the hem 44 of the wall waterproof sheet 40 is longer than the hem of the rain retainer sheet metal 56, the skirt 44 of the wall waterproof sheet will protrude from the hem of the rain retainer sheet 56, and the design will be impaired. . Since the length in the lateral direction of the hem portion of the actual rain retainer sheet metal 56 is 90 mm to 120 mm, the length in the lateral direction in a state where the longitudinal folded portion L is not stretched is particularly 90 mm to 100 mm. Is preferred. Thereby, the skirt part 44 of the waterproof sheet for a wall does not protrude from the skirt part of the rain retainer sheet metal 56, and the design property is not impaired.

  As shown in FIGS. 3 and 9, for example, the waterproof sheet for a wall which is the third type invention of the first invention for solving the above-mentioned problems is obtained by applying an elastomer sheet 1 having tear resistance and heat shrinkability to an adhesive 2. The multilayer waterproof sheet 5 is bonded to the front surface side of the aluminum foil 3 and the back surface side of the aluminum foil 3 is coated with the resin-based paint 4, and the longitudinal direction of the multilayer waterproof sheet 5 is in the longitudinal direction. A waterproof sheet for a wall 40 using a waterproof sheet for roof 10 in which a transverse direction folded overlap portion T is formed over a transverse direction perpendicular to the longitudinal direction, and a longitudinal direction folded overlap portion L is formed over the longitudinal direction. When the space (d) between the first-stage roof tile 52 and the wall surface 51 is open, the longitudinal folded portion L of the waterproof sheet 40 for water is formed so as to correspond to the distance d. Expand and apply It allows characterized by being configured so as to be covered by the wall waterproof sheet 40 a distance d to.

  The method for installing a waterproof sheet for a wall, which is the second invention for solving the above-mentioned problems, is, for example, as shown in FIG. 3, FIG. 4 and FIG. 2 is bonded to the front surface side of the aluminum foil 3, and the back surface side of the aluminum foil 3 is coated with the resin-based paint 4. In the installation method of the waterproof sheet 40 for a wall formed by using the waterproof sheet for roof 10 in which the transverse direction folded overlap portion T is formed over the transverse direction orthogonal to the direction, and the longitudinal direction folded overlap portion L is formed in the longitudinal direction. The wall edge 51 on which the waterproof sheet 40 for the wall is installed has a roof wall 52 and a wall near the wall surface 51 where a thin sheet wood (headwood 54) and an L-shaped sheet metal (rain presser sheet metal 56) are provided. The step of fixing one side in the lateral direction from the central portion of the waterproof sheet 40 to the wall surface 51 (step 300), and the hem portion side forming the other in the lateral direction of the waterproof sheet 40 for the wall are tangent to the roof surface 52 and the wall surface 51 A step of adhering to the roof material 52 on the first step near the wall at a predetermined distance, for example, 7 to 12 cm (step 302), and fixing the thin timber (headwood 54) on the hem side with screws. And a step (step 308) of constructing the waterproof sheet for a wall 40 and the thin sheet wood (headwood 54) in a state where the L-shaped sheet metal (rain presser sheet metal 56) is covered.

  As shown in FIGS. 3, 6, and 7, for example, as shown in FIG. 3, FIG. 6, and FIG. 7, the installation method of the waterproof sheet for a wall according to the second invention for solving the above-mentioned problem is applied to the elastomer sheet 1 having tear resistance and heat shrinkability. 2 is bonded to the front surface side of the aluminum foil 3, and the back surface side of the aluminum foil 3 is coated with the resin-based paint 4. In the installation method of the waterproof sheet 40 for a wall formed by using the waterproof sheet for roof 10 in which the transverse direction folded overlap portion T is formed over the transverse direction orthogonal to the direction, and the longitudinal direction folded overlap portion L is formed in the longitudinal direction. A step of refracting the crease 49 along the crease 49 at the center in the longitudinal direction of the waterproof sheet for wall 40 (step 400); A step of installing along the line in the longitudinal direction (step 402), a step of peeling off the release paper 46 on the wall surface side of the waterproof sheet for wall 40 and bonding it to the wall surface 51 with the adhesive tape 45 (step 404), and a waterproof wall A step (step 406) of peeling the release paper 48 on the hem portion side of the sheet 40 and bonding the release paper 48 to the peak portion H of the roofing material 52 with the adhesive tape 47, and the valley portion G of the roofing material 52 are folded in the longitudinal direction. A step (step 408) in which the hem 44 is stretched in the longitudinal direction along the trough G of the roofing material 52 while being stretched in the lateral direction so as to fit inside the rain retainer sheet metal 56. It is characterized by.

  As shown in FIGS. 3, 6, and 8, for example, as shown in FIGS. 3, 6, and 8, an installation method of a waterproof sheet for a wall according to a second invention that solves the above-described problem is achieved by applying an elastomer sheet 1 having tear resistance and heat shrinkability to an adhesive. 2 is bonded to the front surface side of the aluminum foil 3, and the back surface side of the aluminum foil 3 is coated with the resin-based paint 4. In the installation method of the waterproof sheet 40 for a wall formed by using the waterproof sheet for roof 10 in which the transverse direction folded overlap portion T is formed over the transverse direction orthogonal to the direction, and the longitudinal direction folded overlap portion L is formed in the longitudinal direction. A step of refracting the crease 49 along the crease 49 at the center in the longitudinal direction of the waterproof sheet for wall 40 (step 400); A step of installing in the longitudinal direction along the line (step 402), and a step of peeling off the release paper 48 on the skirt portion side of the waterproof sheet 40 for the wall and adhering it to the peak portion H of the roofing material 52 with the adhesive tape 47 (step 410). ) And the trough G of the roofing material 52 extend along the trough G of the roofing material 52 while extending the overlapped portion L in the longitudinal direction in the lateral direction so that the skirt 44 fits inside the rain retainer sheet metal 56. And a step of bonding while extending in the longitudinal direction (step 412), a step of peeling off the release paper 46 on the wall surface side of the waterproof sheet 40 for the wall and bonding to the wall surface 51 with the adhesive tape 45 (step 414) It is characterized by.

  The method for installing a waterproof sheet for a wall which is the second invention for solving the above-mentioned problem is that, for example, as shown in FIGS. 3, 9, and 10, an elastomer sheet 1 having tear resistance and heat shrinkability is used as an adhesive. 2 is a multilayer waterproof sheet 5 that is bonded to the front surface side of the aluminum foil 3 and coated with a resin-based paint 4 on the back surface side of the aluminum foil 3, and the longitudinal direction of the multilayer waterproof sheet A waterproof sheet for a wall formed by using a waterproof sheet for a roof in which a transverse direction folded overlap portion is formed over a transverse direction orthogonal to the direction, and a longitudinal direction folded overlap portion is formed over the longitudinal direction, When a sheet is installed on a wall, a sheet metal (headboard 54), a face door-shaped sheet metal plate 57, and an L-shaped sheet metal (rain presser sheet metal 56) are provided near the roof surface and the wall surface. The step of fixing one edge portion in the lateral direction from the center portion of the sheet 40 to the wall surface 51 (step 500) and the hem portion side forming the other in the lateral direction of the waterproof sheet for wall 40 are the roof surface 52 and the wall surface 51. A step of adhering to the roof material 52 of the first step near the wall at a predetermined distance, for example, 7 to 12 cm from the tangent line (step 502), and a thin plate wood (headwood 54) on the skirt side with screws A fixing step (step 504), a step (step 506) of temporarily fixing the face door-shaped sheet metal 57 covering the gap of the concave portion of the roof material to the thin plate wood (headwood 54), a waterproof sheet for the wall and the thin plate wood (headboard 54). ) In a state of being covered with an L-shaped sheet metal (rain presser sheet metal 56) (step 508).

The effect by this multilayer waterproof sheet which makes the premise of this invention is demonstrated.
(1) According to this multilayer waterproof sheet, an elastomer sheet having tear resistance and heat shrinkability is bonded to the front surface side of the aluminum foil using an adhesive, and a resin-based paint is applied to the back surface side of the aluminum foil. Because it is a coating, it has a four-layer structure consisting of elastomer sheet, aluminum foil, adhesive, and resin-based paint. Therefore, as an effect of using this multilayer tarpaulin as a roof tarpaulin, the installation of a tarpaulin on the roof ridge or on the wall side in buildings with various types of roof materials and roof gradients is typical. It is suitable for use as a waterproof sheet for roofs that can be easily constructed so as to conform to the on-site installation shape.

(2) According to the present multilayer waterproof sheet, as an effect when the multilayer waterproof sheet is used as a waterproof sheet for roofs, since chlorosulfonated polyethylene having weather resistance is used as an elastomer sheet, durability is sought. Even in a building material to be manufactured, the thickness of the elastomer sheet itself can be set in a range of, for example, 0.15 mm to 0.45 mm. The thickness of the elastomer sheet itself is thin enough not to impede construction workability on site.
(3) According to the present multilayer waterproof sheet, the shape is memorized by natural crosslinking, so the shape is retained by the shape retention of the aluminum foil at the time of product molding. , Memorize the shape. The fact that such multilayer waterproof sheets have shape memory characteristics means that the installation of waterproof sheets on roof ridges and walls near the roof ridges and walls of buildings with various designs of roof materials and roof gradients is the on-site installation shape. It is suitable for use as a roofing waterproof sheet that can be easily constructed so as to fit.

According to the waterproof sheet for roof and the waterproof sheet for a wall of the first invention, the following effects are obtained.
(A) The waterproof sheet for the roof and the waterproof sheet for the wall are lightweight and can be used regardless of the skill level and skill of the operator.
(B) If a chlorosulfonated polyethylene sheet is used for the waterproof sheet for the roof, the surface of the waterproof sheet for the wall is covered with a chlorosulfonated polyethylene sheet having excellent wear resistance and tear resistance. There is no risk of bird damage to the sheet or the waterproof sheet for the wall.
(C) Since the waterproof sheet for roof and the waterproof sheet for the wall are provided with the folded portion L in the longitudinal direction, the width direction or height can be increased even when the waterproof sheet for the wall is installed on the roof such as the wall. It can also be stretched in the direction.
(D) The total thickness of the waterproof sheet for the roof is, for example, 0.4 mm to 0.5 mm so that flexibility can be ensured, and the gap between the overlapped portions T in the transverse direction is narrow. For various uneven shapes of the material, it can be freely handled by changing the shape by manual processing of the waterproof sheet for the roof in the installation work on the site of the operator.
(E) When the chlorosulfonated polyethylene sheet 1 is used for the waterproof sheet for the roof and the waterproof sheet for the wall, the secular change caused by the cooperative relationship between the adhesive strength of the conventional adhesive tape and the shape retention of the aluminum foil The peeling from the roofing material due to can be suppressed.

  According to the waterproof sheet for a wall of the first invention, since the crease portion is provided in the longitudinal direction, the following effects are obtained. In conventional construction, after laying the first-stage roof material closest to the wall, construction is performed over the longitudinal direction at a predetermined distance in the vertical direction from the tangent line between the wall surface and the roof surface, for example, about 90 mm. It was necessary to make a black line that would serve as the reference line for the work, and to construct it based on this. On the other hand, in the waterproof sheet for a wall according to the present invention, a crease is provided in the longitudinal direction at a predetermined distance in the lateral direction from the hem, for example, 90 mm which is the range described in claim 3. ing. Therefore, in the waterproof sheet for a wall according to the present invention, even if the crease portion is refracted along the crease portion and the crease portion is installed in the longitudinal direction along the tangent line between the roof surface and the wall surface, It doesn't stick out. This eliminates the need for the sanitization work, which has been required at the time of conventional construction, and improves the construction efficiency.

  The wall-side waterproof sheet used in the method for installing the wall-side waterproof sheet according to the second aspect of the invention has a transverse direction folded overlap portion T and a longitudinal direction folded overlap portion L. And by extending the transverse direction folded overlap portion T, it can be stretched without gaps in the unevenness of the roofing material, and the longitudinal direction folded overlap portion L exhibits an effect as a water return. Therefore, it is possible to prevent water leakage from the screw holes, water leakage from the screw holes in the trough G of the corrugated roofing material, and it is difficult to completely stick the adhesive tape of the waterproof sheet for the wall to the roofing material. Therefore, it is possible to prevent a gap from being generated. In particular, in actual construction sites, the first-stage roofing material is often separated from the wall surface, but since the hem can be extended in the lateral direction, the waterproof sheet for the wall is also applied to the trough G of the roofing material. The adhesive tape can be completely applied to the roofing material. Moreover, since the skirt part of the waterproof sheet for a wall does not protrude from the rain retainer sheet metal, the design is not impaired.

  According to the installation method of the waterproof sheet for a wall which is the second invention, in the conventional construction, in the valley part G of the roof material having a large unevenness, the waterproof sheet for the wall part attached to the trough G and the valley part G of the roof material An opening is formed between the hem and the hem. By attaching a face-to-door sheet metal plate that matches the shape of the roofing material to this opening, it is possible to prevent not only design problems but also blowing of air into the opening and becoming a bird's nest. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a multilayer waterproof sheet suitable for use in the waterproof sheet for walls according to the present invention will be described.
FIG. 1 is a configuration diagram illustrating a multilayer waterproof sheet suitable for use in a waterproof sheet for a wall according to the present invention. In the figure, the multilayer waterproof sheet 5 has a four-layer structure of an elastomer sheet 1, an adhesive 2, an aluminum foil 3, and a resin-based paint 4. Here, the elastomer used for the elastomer sheet 1 includes a thermoplastic elastomer, a crosslinked rubber, and an uncrosslinked rubber. The term “elastomer” has a definition in JISK6418 and is a kind of elastic polymer. Covalently coupling between molecules, the polymer capable of forming a three-dimensional network (Network Structure) shows the property of rubber elasticity at the glass transition temperature _{T g} or more. The elasticity of rubber is due to the force that occurs when an array of molecules that do not originally have a regular structure becomes regularity due to external forces, and this tries to return to the original irregular arrangement. This is also called entropy elasticity because the decrease in entropy due to (increase in Gibbs free energy) is the elasticity due to the force to return.

  The elastomer sheet 1 in the multilayer waterproof sheet 5 is preferably made of naturally crosslinked chlorosulfonated polyethylene. In particular, by using a natural cross-linking type, the cross-linking step can be omitted, and the sheet can be memorized in a normal temperature state after molding. The chlorosulfonated polyethylene sheet 1 is preferably in a thin state of 0.15 mm to 0.45 mm, particularly preferably 0.3 mm. Here, chlorosulfonated polyethylene is a compound mainly composed of chlorosulfonated polyethylene. In addition to chlorosulfonated polyethylene, inorganic substances such as talc, charcoal cal, silica, carbon, aromatic process oil, chlorinated paraffin A processing aid such as a plasticizer and polyethylene wax can be added as necessary. In addition, in order to adjust the crosslinking state in the natural environment, a general crosslinking agent or crosslinking aid used for crosslinking chlorosulfonated polyethylene, such as magnesium oxide, risurge, sulfur, epoxy, etc. It can also be added. Furthermore, as rubber components other than the main component chlorosulfonated polyethylene, natural rubber, styrene / butadiene rubber, butadiene rubber, ethylene / propylene / diene rubber, chloroprene rubber, butyl rubber, nitrile rubber, urethane rubber, etc. are required. Can be added accordingly. Besides rubber components, polyethylene, polypropylene, polyester resin, polycarbonate, acrylonitrile styrene butadiene copolymer, resin components such as acrylic, ethylene vinyl acetate (EVA), and nylon, polyester, etc. The fibers to be added can be added as necessary.

  The pressure-sensitive adhesive 2 is used for adhesion between two layers of the elastomer sheet 1 and the aluminum foil 3. The pressure-sensitive adhesive 2 can relieve the stress at the folded portion that occurs between the two layers, and a sheet having a higher bending workability can be obtained. The adhesive 2 is particularly preferably an acrylic adhesive 2. On the other hand, butyl rubber, polyisobutylene, and the like are softened during heating, and therefore, when the elastomer sheet 1 is thermally contracted, there is a disadvantage that it cannot be fixed to the aluminum foil 3.

  Also, in the process of laminating the elastomer sheet 1 and the aluminum foil 3, the acrylic pressure-sensitive adhesive 2 has a lower viscosity than a rubber-based pressure-sensitive adhesive such as butyl rubber or polyisobutylene, so that a laminating apparatus can be used and the processing speed is also high. Bonding can be performed at 10 [km / h] or more, and processing costs can be reduced.

The aluminum foil 3 is soft aluminum because the operator forms it manually, and the thickness is preferably about 30 μm to 90 μm (preferably 40 μm). The thickness of the aluminum foil 3 is the thickness and heat shrinkage of the elastomer sheet 1 to be bonded together, the workability when the worker deforms the multilayer waterproof sheet to correspond to the unevenness of the roof material, and the multilayer waterproof sheet is manufactured. It depends on the capacity of the weaving machine used for the purpose. And the lower limit side of the thickness of the aluminum foil 3 is determined by the following three requirements.
(I) Occurrence frequency of the winding nest in the bonding step of the elastomer sheet 1 and the aluminum foil 3 (ii) The heat shrinkage force in the direction of preparation increases with respect to the force by which the aluminum foil 3 laminates and fixes the elastomer sheet 1, That the elastomer sheet 1 is peeled off from the aluminum foil 3,
(Iii) The heat-shrinking force in the line direction increases with respect to the force with which the aluminum foil 3 maintains its shape, and the aluminum foil 3 is rounded to the surface side.

  On the other hand, the upper limit of the thickness of the aluminum foil needs to be low enough to allow the operator to deform the multilayer waterproof sheet so as to cope with the unevenness of the roofing material by hand processing. Furthermore, the thickness of the elastomer sheet 1 and the aluminum foil 3 needs to be rigid enough to be woven by a weaving machine used to manufacture a multilayer waterproof sheet. As thickness of the aluminum foil 3 which satisfies these three requirements, 30 micrometers-120 micrometers are preferable (refer Table 1, Table 2, Table 3).

  In consideration of tear resistance, the resin-based paint 4 is preferably baked to have an epoxy resin-based coating thickness of 0.5 μm to 5 μm, preferably 1 μm to 4 μm, and particularly preferably about 3 μm. The resin-based paint 4 is coated for the purpose of improving durability and corrosion resistance. Further, the processing of the back surface of the aluminum foil 3 is determined in consideration of tear resistance. The point of tear resistance will be described in detail in the relevant part with reference to FIG.

  Here, the physical properties of the multilayer waterproof sheet 5 when a chlorosulfonated polyethylene sheet is used as the elastomer sheet 1 will be described. First, since the chlorosulfonated polyethylene sheet is an uncrosslinked rubber having thermoplasticity, when a temperature of about 70 ° C. or higher is applied, the sheet is greatly contracted in the direction of the sheet (see Table 1). For this reason, it is necessary to laminate and fix to the aluminum foil 3 having a preserving shape.

  At this time, the pressure-sensitive adhesive 2 is used for adhesion between the two layers of the chlorosulfonated polyethylene sheet 1 and the aluminum foil 3 in order to facilitate the bending process. The pressure-sensitive adhesive 2 is particularly preferably an acrylic pressure-sensitive adhesive 2. This is because not only butyl rubber or polyisobutylene is softened by heat in the same manner as chlorosulfonated polyethylene, and not only the chlorosulfonated polyethylene sheet 1 cannot be fixed on the aluminum foil 3 (Table 1). 1), a rubber-based adhesive such as butyl has a viscosity that is too high to use a laminating apparatus used in the two-layer bonding process, which may increase the bonding cost.

  In addition, when the chlorosulfonated polyethylene sheet 1 is thickened, not only is the nest formed in the bonding process easy to occur, but also the aluminum foil 3 is laminated to the force (β) for laminating and fixing the chlorosulfonated polyethylene sheet 1. The heat shrinkage force (α) increases, and the chlorosulfonated polyethylene sheet 1 is peeled off from the aluminum foil 3 (see Table 2), and the force (γ) that the aluminum foil 3 maintains the shape, Care must be taken because the heat shrinkage force (α) in the direction of the line is increased and the aluminum foil 3 is rounded to the surface side (see Table 3).

Determination of the thickness of the chlorosulfonated polyethylene sheet 1 and the aluminum foil 3 is an aluminum foil 3 that satisfies the conditions of heat shrinkability, can be woven by a loom, and can be manually processed by the operator to cope with the unevenness of the roofing material. Must. The thickness of the aluminum foil 3 that satisfies these three requirements of rigidity against heat shrinkability, workability at the construction site, and production efficiency is preferably 30 μm to 120 μm.

  Subsequently, a roof waterproof sheet suitable for the wall waterproof sheet of the present invention will be described. FIG. 2 is a configuration diagram of a roof waterproof sheet suitable for use in the waterproof sheet for a wall according to the present invention. FIG. 2A is a cross-sectional view of the roof waterproof sheet in the AA direction of FIG. 2 (b) is a structural perspective view of a waterproof sheet for roof.

  In the figure, the waterproof sheet 10 for roofs is a multi-layer waterproof sheet 5 as shown in FIG. 2 (b), for example, in the transverse direction perpendicular to the longitudinal direction (length direction) of the multilayer waterproof sheet 5 (length direction). A transverse direction folded overlap portion T is formed over the Transverse direction), and a two-way folded state is formed in which a longitudinal direction folded overlap portion L is formed along the longitudinal direction.

As shown in FIGS. 2A and 2B, the interval Lp between the laterally folded portions T is determined as appropriate in order to correspond to the complexity of the uneven shape of the roof shape. Further, since there is a transverse direction folded overlap portion T, the roof waterproof sheet 10 includes an upper roof waterproof sheet portion 101, an upper folded portion 102, a folded roof waterproof sheet portion 103, a lower folded portion 104, and a lower step. It has a roof waterproof sheet portion 105 and a connected roof waterproof sheet portion 106. Then, when the folded roof waterproof sheet portion 103 is expanded, the distance between the upper roof waterproof sheet portion 101 and the lower roof waterproof sheet portion 105 is twice the longitudinal length L ₁₀₃ of the folded roof waterproof sheet portion 103. It can be adjusted within the range. To match the spacing Lp longitudinal folding the superimposed portion L, the longitudinal length L ₁₀₆ of the longitudinal length L ₁₀₃ and the longitudinal side connecting roof tarpaulin portion 106 of the longitudinal side folded roof tarpaulin 103 Determined.

Further, as shown in FIG. 2B, since the longitudinal folded portion L exists, the roof waterproof sheet 10 includes a longitudinal stretch side upper roof waterproof sheet portion 121 and a longitudinal stretch side upper folded portion 122. , A longitudinally extending side folded roof waterproof sheet portion 123, a longitudinally extending side lower folded portion 124, and a longitudinally extending side lower roof waterproof sheet portion 125. When the longitudinally extending side folded roof waterproof sheet portion 123 is developed, the distance between the longitudinally extending side upper roof waterproof sheet portion 121 and the longitudinally extending side lower roof waterproof sheet portion 125 is set to the longitudinally extending side folded roof waterproof sheet. It can be adjusted in transverse direction length double the range of _{T 123} parts 123.

In order to attach the transverse direction folded overlap portion T so as to conform to the unevenness of the roofing material, the transverse direction folded overlap portion T is continuously provided, the interval Lp between the transverse direction folded overlap portions T and the stretch ratio Expt Is preferably set to an appropriate value according to the unevenness of the roofing material to be covered. Here, the stretching ratio Expt of the laterally folded portion T can be defined by the following equation, for example.
Expt = (Lp + 2L ₁₀₃ ) / Lp (1)

The longitudinally folded portion L is stretched in the longitudinal direction mainly so as to conform to the uneven shape such as the step of the roofing material to be covered, so that the longitudinally extending folded roof waterproof sheet portion 123 has an appropriate length. It is preferable to ensure the thickness. Here, the stretch ratio Expl of the overlapped portion L in the longitudinal direction can be defined by the following formula using, for example, the length T _all in the transverse direction of the waterproof sheet 10 for roof.
Expl = (T _all + 2T ₁₂₃ ) / T _all (2)

  According to the waterproof sheet for roof of the present invention, since the multilayer waterproof sheet in the two-way folded state is used, it is possible to cope with the unevenness of the roofing material by extending the transverse direction folding overlap portion T, and the longitudinal direction folding. By extending the superposed portion L, not only the response to the step difference of the roof material but also the function of returning water to the gap due to the step difference of the roof material is achieved. Moreover, since it is a sheet having the elasticity of the thin elastomer sheet 1 in the transverse direction and the shape retaining property of the aluminum foil 3 for the operator, it is easy to be familiar with the hand, so that it is difficult for construction failure to occur and the construction time is shortened. .

  In the present embodiment, special consideration is given when the resin-based paint 4 is coated as processing on the back surface of the aluminum foil 3. That is, as shown in FIG. 2 (b), when the multilayer waterproof sheet 5 is folded in two directions, the longitudinal direction and the transverse direction, the aluminum foil 3 is subjected to stress due to refraction, and the longitudinal folded portion L and The aluminum foil 3 is easily broken at the contact point of the overlapped portion T in the transverse direction. Therefore, the resin-based paint 4 is applied to relieve stress at the contact points, making the aluminum foil 3 difficult to break and improving the product yield rate. In order to relieve the stress at the contact point of the aluminum foil 3, it is desirable that the coating thickness is 0.5 μm to 5 μm.

  Further, even if the aluminum foil 3 is torn, starting from the contact point between the longitudinal folded portion L and the transverse folded portion T as shown in FIG. 2 (b), The chlorosulfonated polyethylene sheet 1 having excellent tear resistance can prevent the area to be broken from being expanded and can prevent rapid expansion of the break.

  Then, the waterproof sheet for the wall of this invention is demonstrated. 3A and 3B are configuration diagrams for explaining an embodiment of a waterproof sheet for a wall according to the present invention, in which FIG. 3A is a plan view seen from the upper surface, and FIG. 3B is a bb direction of FIG. FIG. 4 is a cross-sectional view in the transverse direction, (c) is a bottom view as seen from the lower surface, and (d) is a side view as seen from the dd direction in FIG. As the multilayer waterproof sheet 5 used for the roof waterproof sheet 10 in the two-way folded state, the one in the two-way folded state in which the transverse direction folded overlap portion T and the longitudinal direction folded overlap portion L are formed is used. Therefore, the waterproof sheet 40 for the wall has stretchability not only in the longitudinal direction but also in the lateral direction.

  In the figure, the waterproof sheet 40 for the wall is used by forming the roof waterproof sheet 10 in an appropriate shape for the wall, and includes an adhesive tape (wall surface side) 45, a release paper (wall surface side) 46, and an adhesive tape (hem side). 47 and release paper (hem side) 48. As shown in FIG. 3 (b), the wall waterproof sheet 40 has a left-right asymmetric shape via a fold 49. The wall-side waterproof sheet 40 is provided with one folded portion L in the longitudinal direction on the skirt portion side of the fold portion 49. Since the longitudinal folded portion L exists, the wall-side waterproof sheet 40 includes a wall contact side waterproof sheet portion 407 and a roof contact side waterproof sheet portion 408 with the fold portion 406 as a boundary. The roof contact side waterproof sheet portion 408 includes an upper wall-side waterproof sheet portion 401, an upper-stage folded portion 402, a folded-wall-side waterproof sheet portion 403, a lower-stage folded portion 404, and a lower-stage wall-side waterproof sheet portion 405. . The wall contact side waterproof sheet portion 407 is a portion where a member equivalent to the upper wall side waterproof sheet portion 401 is extended from the crease portion 49 to the adhesive tape (wall surface side) 45.

In addition, as shown in FIGS. 3A and 3C, the fold portions 406 appear on both the upper and lower surfaces of the waterproof sheet 40 for the wall. The shape of a typical wall-edge waterproof sheet 40, with respect to the transverse direction, corresponding to the wall contact side tarpaulins portion 407, the length T _R from the folding line 49 until the adhesive tape (wall surface) 45, the roof those The length T _L from the crease portion 49 corresponding to the contact-side waterproof sheet portion 408 to the adhesive tape (hem portion side) 47 is (T _R + T _L ). Here, the width T _{47 of} the adhesive tape (hem side) 47, the interval T ₄₀₂ from the adhesive tape (hem side) 47 to the upper bent portion 402, and the interval from the upper bent portion 402 to the lower bent portion 404. , i.e. the width _{T 403} of generally folded near wall waterproof sheet portion 403, using the distance _{T 404} from the lower bent portion 404 to the folding line 49, the following equation is established.
T _L = T ₄₇ + T ₄₀₂ + T ₄₀₃ + T ₄₀₄ (3)

The adhesive tapes 45 and 47 are preferably made of butyl or EPDM. The adhesive tapes 45 and 47 are preferably attached to a width of 10 mm to 50 mm (preferably 30 mm) on the hem 44 in the longitudinal direction of the waterproof sheet for the wall and the wall surface located on the edge opposite to the hem 44. . In order to attach the overlapped portion T in the transverse direction so as to conform to the unevenness of the roofing material, the overlapped portion T is continuously provided, the interval Lp between the folded overlapped portions T is 6 mm to 18 mm, The rate Expt is preferably 140% to 160%. Since the longitudinal folding portion L is extended in the longitudinal direction mainly along the valley portion of the roofing material, it is possible to ensure the length T ₄₀₃ in the transverse direction of the waterproof sheet portion 403 for turning wall from 20 mm to ₄₀ mm. preferable.

  According to the waterproof sheet for a wall of the present invention, the roof waterproof sheet 10 is cut into an appropriate shape for the wall, so that it is possible to cope with the unevenness of the roof material by extending the laterally folded portion T. At the same time, by stretching the overlapped portion L in the longitudinal direction, it not only responds to the steps of the roofing material but also serves as a water return. In addition, since the sheet has elasticity of the thin elastomer sheet 1 in the transverse direction and the shape retaining property of the aluminum foil 3 for the operator, it is easy to adjust to the hand, so that it is possible to prevent the occurrence of construction defects and shorten the construction time. Leads to.

  4A and 4B are configuration diagrams for explaining a construction state of a waterproof sheet for a wall against a flat roof material, in which FIG. 4A is a cross-sectional view of a main part of a comparative example, and FIG. 4B is a cross-sectional view of a main part of an embodiment of the present invention. FIG. In the comparative example shown in FIG. 4 (a), the wall-side waterproof sheet 40 does not have the folded portion L in the longitudinal direction, and a state where water leakage due to rainwater occurs near the wall is described. In the embodiment of the present invention shown in FIG. 4 (b), the wall-side waterproof sheet 40 is provided with a folded portion L in the longitudinal direction, and it is explained that leakage due to rain water can be prevented at the wall.

  In the figure, a roof wall edge 50 to which a wall waterproof sheet 40 is attached includes a wall surface 51, a roof material 52, a pier 53, a headboard 54, a screw 55, a rain retainer sheet metal 56, a face door sheet metal 57, and a roofing 60. A space member 61, a crosspiece 62, a draining tape 63, and a field plate 64 are provided. Examples of the roof edge 50 include, for example, a joint between a one-story part and a two-story part in a two-story residence, an overhanging roof part installed on the upper side of a window, a boundary part between a ceiling window and a roof material, a fireplace, and the like There are joints between chimneys and roofing materials.

  The wall surface 51 refers to a wall body to which the roof material 52 is attached. The roof material 52 is typically a tile or a slate, but a thick roof material such as a tile may be used. The pier 53 is a member on the wall surface 51 side that is used when the roof material 52 is stopped, and is a small-angle member sandwiched between the members orthogonally to the material in order to improve ventilation. The headboard 54 is a member that is attached to prevent rain and the like from entering from the upper end portion of the finished outer wall. As the headboard material, a high-quality material such as a highly durable metal plate or roofing material is used. The screw 55 is used to fix the crosspiece 53 and the headboard 54 to the wall surface 51, and a metal-made material having high rigidity and high durability is used. The rain retainer sheet metal 56 is a member that covers rain water from entering from the boundary surface between the roof material 52 and the wall surface 51, and a highly durable metal plate is used. The roofing 60 is a waterproof sheet-like member, and an asphalt-based sheet is used when the roofing material 52 is a tile. The space member 61 is installed between the wall surface 51, the roofing 60, and the rain retainer sheet metal 56, and is fixed to the wall surface 51 with a nail, an adhesive, or the like. The pier 62 is a member on the base plate 64 side used when the roof material 52 is stopped, and is a small-angled material sandwiched between the members orthogonally to the material in order to improve the ventilation. The draining tape 63 is a tape-like tape having a width of about 20 mm installed vertically below the pier 62, and rainwater does not collect on the pier 62 and flows down. The field plate 64 is a base plywood on the roof surface for fixing roof tiles and the like, and a plywood is stretched on a rafter and a roofing 60 is constructed thereon.

  In the construction state of the waterproof sheet for the wall with respect to such a flat roof material, in the comparative example shown in FIG. 4A, the waterproof sheet 40 for the wall does not have the overlapped portion L in the longitudinal direction and During the operation of fixing the headboard 54 to the wall surface 51, a hole is formed in the waterproof sheet 40 near the wall by the screw 55, and rainwater leaks from the hole. The wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but rainwater enters from a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40, and a hole formed by the screw 55. Rainwater leaks from the roof to the roof 52 side.

  On the other hand, in the construction state of the waterproof sheet for the wall against the flat roof material, in the embodiment of the present invention shown in FIG. Even when a hole is formed in the waterproof sheet 40 for the wall by the screw 55 during the operation of fixing the crosspiece 53 and the headboard 54 to the wall surface 51 by the screw 55, it is possible to prevent leakage of rainwater from the hole. In other words, the wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40 is the longitudinal length of the wall-side waterproof sheet 40. It acts as a water return by the three-layer structure of the direction folding overlapping portion L, that is, the waterproof sheet portion 401 for the upper wall wall, the waterproof sheet portion 403 for the folded wall wall, and the waterproof sheet portion 405 for the lower wall wall, even if rainwater enters, The rainwater is prevented from entering the hole by the screw 55 and the leakage of the rainwater to the roof material 52 side is prevented.

  Then, the installation method of the waterproof sheet for the wall in the state of FIG.4 (b) is demonstrated. FIG. 5 is a flowchart for explaining a method of installing a waterproof sheet for a wall on a flat roof material. In the case of a flat roof material, a thin sheet wood (headwood 54) and an L-shaped sheet metal (rain presser sheet metal 56) are provided near the roof surface and the wall surface on the wall where the waterproof sheet 40 for the wall is installed. First, one side in the transverse direction is fixed to the wall surface 51 from the center of the waterproof sheet 40 for the wall (step 300). Next, the adhesive tape is applied to the roof material 52 at the first step near the wall, with the hem portion forming the other side in the lateral direction of the waterproof sheet 40 for the wall at a predetermined distance from the tangent line between the roof surface 52 and the wall surface 51, for example, 7 to 12 cm. Bonding is performed at 47 (step 302). Then, thin timber (headwood 54) is fixed on the skirt side with screws (step 304). Finally, the wall-side waterproof sheet 40 and the thin sheet metal (headwood 54) are constructed in a state where the L-shaped sheet metal (rain presser sheet metal 56) is covered (step 308). In this way, the installation work of the wall waterproof sheet is completed (step 310).

  FIG. 6 is a configuration diagram for explaining a construction state of a waterproof sheet for a wall against a corrugated roof material, in which (a) is a cross-sectional view of a main part configuration of a comparative example, and (b) is an example using an embodiment product of the present invention. FIG. In the comparative example shown in FIG. 6 (a), the waterproof sheet for wall 40 does not have the overlapped portion L in the longitudinal direction, and the adhesive tape 47 of the skirt portion 44 floats without being stuck over the entire width. The state which leaks from the fastener hole to fix is explained. In the embodiment of the present invention shown in FIG. 6 (b), the wall-side waterproof sheet 40 was provided with a folded portion L in the longitudinal direction, and the adhesive tape at the hem could be applied over the entire width. Explains the condition.

  In the figure, a wall side portion 50 of the roof, to which the waterproof sheet 40 for the wall is mounted, is provided with a wall surface 51, a roofing material 52, a crosspiece 53, a headboard 54, a screw 55, a rain retainer sheet metal 56, and a face door-shaped sheet metal 57. ing. 6 that have the same functions as those in FIG. 4 are denoted by the same reference numerals and description thereof is omitted. As the roofing material 52, for example, a valley G of the roofing material 52 and a mountain H of the roofing material 52 appear due to the use of a member having an uneven curved surface such as a tile. Although the posture is continuously deformed by the valley portion G and the mountain portion H, the locations of the valley portion G and the mountain portion H of the roof material 52 are shown here.

  In the construction state of the waterproof sheet for the wall with respect to such a corrugated roof material, it is the valley portion G of the roof material 52 that causes a problem due to rainwater. In the mountain portion H of the roof material 52, rainwater flows into the valley portion G of the roof material 52, so that the problem of water leakage at the wall edge portion 50 hardly occurs. Therefore, when considering the trough G of the roof material 52, in the comparative example shown in FIG. 6A, the wall-side waterproof sheet 40 does not have the overlapping portion L in the longitudinal direction, and the piers 53 and the headboards 54 by the screws 55 are wall surfaces. During the work of fixing to 51, a hole is made in the waterproof sheet 40 for the wall by the screw 55, and rainwater leaks from this hole. The wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but rainwater enters from a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40, and a hole formed by the screw 55. Rainwater leaks from the roof to the roof 52 side.

  On the other hand, in the embodiment of the present invention shown in FIG. 6B, the overlapped portion L in the longitudinal direction acts as a water return on the waterproof sheet 40 for the wall, and the crosspiece 53 and the headboard 54 by the screw 55 are attached to the wall surface 51. Even when a hole is formed in the waterproof sheet 40 for the wall by the screw 55 during the work of fixing to the wall, leakage of rainwater from this hole can be prevented. In other words, the wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40 is the longitudinal length of the wall-side waterproof sheet 40. The three-layer structure of the direction folding overlapping portion L, that is, the waterproof sheet portion 401 for the upper wall side, the waterproof sheet portion 403 for the folding wall side, and the waterproof sheet portion 405 for the lower wall side acts effectively, and the longitudinal direction depends on the deployed state. The folded and superposed portion L acts as a water return, and even if rainwater enters, it prevents rainwater from entering the hole by the screw 55 and prevents rainwater from leaking to the roof material 52 side.

  FIG. 7 is a flowchart for explaining the construction procedure of the waterproof sheet for the wall against the roofing material. In the figure, first, the wall-side waterproof sheet 40 is refracted into a "<" shape along the crease portion 49 extending in the longitudinal direction of the wall-side waterproof sheet 40 (step 400). Next, it installs so that the crease | fold part 49 may be matched with the tangent of the roof surface 52 and the wall surface 51 (step 402). Then, the release paper 46 on the wall surface side of the waterproof sheet for wall 40 is peeled off and adhered to the wall surface 51 with the adhesive tape 45 (step 404). Further, the release paper 48 at the skirt 44 of the wall waterproof sheet 40 is peeled off, and the adhesive tape 47 is bonded to the peak H of the roofing material 52 (step 406). At this time, as for the attachment to the roof surface, the folded portion L in the longitudinal direction of the skirt portion 44 can be attached to a predetermined position inside the rain retainer sheet metal 56 if it is adhered in a refracted state. . And the trough part G of the roofing material 52 extends along the trough part G of the roofing material 52 while extending the folded portion L in the longitudinal direction in the lateral direction so that the hem part 44 fits inside the rain retainer sheet metal 56. Bonding while stretching in the longitudinal direction (step 408). In this way, the installation work of the wall waterproof sheet is completed (step 410). At this time, as shown in FIG. 6, the waterproof sheet for a wall 40 needs to be adapted to the shape of the mountain portion H and the valley portion G of the roof material 52 and to the shape of the wall surface 51. Therefore, the laterally folded overlapped portion T of the waterproof sheet 40 for the wall is mounted in a superposed state when it is flat like the wall surface 51, and is uneven like the peak H or valley G of the roofing material 52. In the case of a shape, it is mounted from the overlapped state to the expanded state.

  FIG. 8 is a flowchart for explaining another construction procedure of the waterproof sheet for the wall against the roofing material. In the figure, first, the wall-shaped waterproof sheet 40 is refracted into a "<" shape along the crease portion 49 at the center in the longitudinal direction (step 400). Next, the crease portion 49 is installed in the longitudinal direction along the tangent line between the roof surface 52 and the wall surface 51 (step 402). Then, the release paper 48 on the skirt side of the waterproof sheet for wall 40 is peeled off and adhered to the peak H of the roofing material 52 with the adhesive tape 47 (step 410). And the trough part G of the roofing material 52 extends along the trough part G of the roofing material 52 while extending the folded portion L in the longitudinal direction in the lateral direction so that the hem part 44 fits inside the rain retainer sheet metal 56. The film is bonded while being stretched in the longitudinal direction (step 412). Further, the release paper 46 on the wall surface side of the waterproof sheet for wall 40 is peeled off and adhered to the wall surface 51 with the adhesive tape 45 (step 414). In this way, the installation work of the wall waterproof sheet is completed (step 416). At this time, as shown in FIG. 6, the wall waterproof sheet 40 needs to be adapted to the shape of the peak H and valley G of the roofing material 52 and to the shape of the wall surface 51, so that the waterproof for the wall is provided. It is the same as the flowchart of FIG. 7 to adjust the overlapping state and the unfolding state of the laterally folded overlapped portion T of the sheet 40.

  FIG. 9 is a configuration diagram for explaining the construction state of the waterproof sheet for the wall when the first-stage roof material is separated from the wall surface. FIG. 9A is a cross-sectional view of the main part of the comparative example, and FIG. It is principal part structure sectional drawing of the Example using the implementation goods of invention. In the comparative example shown in FIG. 9A, there is no allowance for the wall waterproof sheet 40, the adhesive tape 47 of the skirt 44 cannot be applied over the entire width, and the adhesive area is insufficient. . In the embodiment of the present invention shown in FIG. 9B, the folded-back overlapped portion L in the longitudinal direction acts on the waterproof sheet 40 for the wall, and the adhesive tape 47 of the skirt 44 can be applied over the entire width. Is explained.

  In the figure, a wall side portion 50 of the roof, to which the waterproof sheet 40 for the wall is mounted, is provided with a wall surface 51, a roofing material 52, a crosspiece 53, a headboard 54, a screw 55, a rain retainer sheet metal 56, and a face door-shaped sheet metal 57. ing. In FIG. 9, the same reference numerals are attached to the same components as those in FIGS. 4 and 6, and the description thereof is omitted. Here, since the first-stage roof material 52 is installed with a gap from the wall surface 51, the rain press sheet metal 56 and the face door-shaped sheet metal 57 cannot completely fill the gap, and are likely to leak. It can be said. Such a gap is likely to occur due to deformation of the wood constituting the roofing material 52, but the situation where the gap is healed by the waterproof sheet 40 at the wall without causing a defect and becomes a serious defect of the building called water leakage. Can be prevented.

  In the construction state of the waterproof sheet for the wall against the case where the first-stage roof material is separated from the wall surface, it is the corrugated roof material that the problem due to rainwater occurs in the valley portion G of the roof material 52. And in common. In the mountain portion H of the roof material 52, rainwater flows into the valley portion G of the roof material 52, so that the problem of water leakage at the wall edge portion 50 hardly occurs. Accordingly, when considering the valley portion G of the roof material 52, in the comparative example shown in FIG. 9A, the wall-side waterproof sheet 40 does not have the overlapped portion L in the longitudinal direction, and the piers 53 and the headboards 54 by the screws 55 are wall surfaces. During the work of fixing to 51, a hole is made in the waterproof sheet 40 for the wall by the screw 55, and rainwater leaks from this hole. The wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but rainwater enters from a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40, and a hole formed by the screw 55. Rainwater leaks from the roof to the roof 52 side.

  On the other hand, in the embodiment of the present invention shown in FIG. 9B, the longitudinal folding portion L acts as a water return on the wall side waterproof sheet 40, and the piers 53 and the headboards 54 by the screws 55 are attached to the wall surface 51. Even when a hole is formed in the waterproof sheet 40 for the wall by the screw 55 during the work of fixing to the wall, leakage of rainwater from this hole can be prevented. In other words, the wall-side waterproof sheet 40 is installed along the lower side of the headboard 54, but a gap formed between the lower side of the headboard 54 and the wall-side waterproof sheet 40 is the longitudinal length of the wall-side waterproof sheet 40. The three-layer structure of the direction folding overlapping portion L, that is, the waterproof sheet portion 401 for the upper wall side, the waterproof sheet portion 403 for the folding wall side, and the waterproof sheet portion 405 for the lower wall side acts effectively, and the longitudinal direction depends on the deployed state. The folded and superposed portion L acts as a water return, and even if rainwater enters, it prevents rainwater from entering the hole by the screw 55 and prevents rainwater from leaking to the roof material 52 side.

  FIG. 10 is a flowchart for explaining the construction procedure of the waterproof sheet for a wall when the first-stage roof material is separated from the wall surface. On the wall where the waterproof sheet for wall 40 is installed, a thin plate wood (headwood 54), a face door-shaped sheet metal plate, and an L-shaped sheet metal (rain presser sheet metal 56) are provided near the roof surface and the wall surface. First, one edge portion in the lateral direction from the center of the waterproof sheet for wall 40 is fixed to the wall surface 51 (step 500). Then, the hem portion side forming the other side in the transverse direction of the waterproof sheet 40 for the wall is a predetermined distance from the tangent line between the roof surface 52 and the wall surface 51, for example, 7 to 12 cm, and the adhesive tape 47 is attached to the first roof material 52 near the wall. (Step 502). Next, thin timber (headwood 54) is fixed with screws on the skirt side (step 504). Subsequently, a step (step 506) of temporarily fixing the face door-shaped sheet metal 57 covering the gap between the concave portions of the roof material to the thin sheet wood (headwood 54), and the waterproof sheet for the wall and the thin sheet wood (headwood 54) are formed into an L-shaped sheet metal ( A waterproof sheet for a wall, comprising a step (step 508) of performing construction in a state of being covered with the rain retainer sheet metal 56). In this way, the installation work of the wall waterproof sheet is completed (step 510). At this time, as shown in FIG. 9, the waterproof sheet for wall 40 needs to be adapted to the shape of the peak H and valley G of the roofing material 52 and to the shape of the wall surface 51, and therefore waterproof to the wall. It is the same as the flowchart of FIG. 7 to adjust the overlapping state and the unfolding state of the laterally folded overlapped portion T of the sheet 40.

11A and 11B are side cross-sectional views illustrating the installation state of the waterproof sheet for the wall, where FIG. 11A illustrates the positional relationship with the pier, and FIG. 11B illustrates the shape in the state of being installed near the wall. The thickness T ₅₃ of the pier 53 in the direction of the wall 51 is, for example, about 10 to 20 mm. Therefore, the length T ₄₀₄ (= T ₄₀₁ −T ₄₀₃ ) of the region where the upper waterproof wall portion 401 of the upper wall portion of the waterproof wall portion 40 does not overlap with the folded waterproof wall portion 403 is equal to the wall portion 51 of the pier 53. It is necessary to make it larger than the thickness T _{53 in the} direction. Therefore, typical values are, as shown in FIG. 11 (B), corresponding to the wall contact side tarpaulins portion 407, the length _{T R} from the folding line 49 until the adhesive tape (wall surface) 45, 40 mm It is good to set it to about 200 mm, particularly preferably about 90 mm.

Also, the length _{T L} from the fold portion 49 which corresponds to the roof contact side tarpaulin unit 408 to the adhesive tape (skirt portion) 47, 40mm~200mm, particularly preferably from to about 90 mm. Here, the interval _{T 404} from the lower bent portion 404 to the fold section 49, for example 30mm or so, a width _{T 403} of the folded near wall waterproof sheet 403, for example 20mm or so, the edge of the adhesive tape (skirt portion) 47 The distance T _L -T ₄₀₄ from the lower bent portion 404 to the lower bent portion 404 is preferably about 60 mm, for example.

  As mentioned above, although embodiment of this invention was described with reference to an accompanying drawing, this invention is not limited to this embodiment, Various forms in the technical scope grasped | ascertained from description of a claim Can be changed. For example, in the above-described embodiment, the waterproof sheet for the wall is illustrated as an application of the waterproof sheet for the roof, but the present invention is not limited to this, and the rain stopper in a place where rainwater easily enters the building. It can be used as a sealing material.

It is an expanded sectional view of a multilayer waterproof sheet suitable for use in the waterproof sheet for a wall of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the waterproof sheet for roofs suitable for using the waterproof sheet for the wall of this invention, (a) is sectional drawing of the AA direction of (b) about the waterproof sheet for roofs, (b) is the waterproof sheet for roofs FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram explaining one Embodiment of the waterproof sheet for a wall, (a) is the top view seen from the upper surface, (b) is a transverse direction sectional view seen from the bb direction of Fig.3 (a), ( FIG. 3C is a bottom view seen from the bottom surface, and FIG. 3D is a side view seen from the direction of FIG. It is a block diagram explaining the construction state of the waterproof sheet for the wall with respect to a flat roof material, (a) is principal part structure sectional drawing of a comparative example, (b) is the principal part structure of the Example using the implementation goods of this invention. It is sectional drawing. It is a flowchart explaining the laying method of the waterproof sheet for the wall with respect to a flat roof material. It is a block diagram explaining the construction state of the waterproof sheet for a wall with respect to a corrugated roof material, (a) is principal part structure sectional drawing of a comparative example, (b) is the principal part structure of the Example using the implementation goods of this invention. It is sectional drawing. It is a flowchart explaining the laying method of the waterproof sheet for the wall with respect to a corrugated roof material. It is a flowchart explaining the laying method of the waterproof sheet for the wall with respect to a corrugated roof material. It is a block diagram explaining the construction state of the waterproof sheet for a wall with respect to the case where the roof material of the 1st step near a wall is separated from the wall surface, (a) is principal part structure sectional drawing of a comparative example, (b) is the implementation goods of this invention It is principal part structure sectional drawing of the Example using this. It is a flowchart explaining the laying method of the waterproof sheet for a wall with respect to the case where the roof material of the 1st step near a wall is separated from the wall surface. It is side surface sectional drawing explaining the installation state of the waterproof sheet for walls.

Explanation of symbols

1 Elastomer sheet (chlorosulfonated polyethylene)
2 Adhesive (acrylic resin adhesive)
3 Aluminum foil 4 Resin-based paint 5 Multilayer waterproof sheet 10 Roof waterproof sheet 40 Wall waterproof sheet 44 Bottom 45 Adhesive tape (wall side)
46 Release paper (wall side)
47 Adhesive tape (hem side)
48 Release paper (hem side)
49 Folding part 50 Wall edge part 51 Wall surface 52 Roofing material (roof surface / tile)
53 pier 54 Kasagi (cutting board, thin timber)
55 Screw 56 Rain presser sheet metal (L-shaped sheet metal)
57 Face-to-face sheet metal G Roof material valley H Roof material mountain L. Longitudinal folding part (Length direction)
T. T. Transverse direction

Claims (9)

A waterproof sheet for a wall using a multilayer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin paint. Because
A waterproof sheet for a wall, characterized in that the stretchability in the longitudinal direction is 125% to 175%, and the stretch length in the transverse direction is 10 mm to 80 mm. A waterproof sheet for a wall using a multilayer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin paint. Because
A waterproof sheet for a wall, wherein a crease is provided in the longitudinal direction near the center in the longitudinal direction.   The length in the transverse direction in a state in which the folded portion in the longitudinal direction is not stretched is 70 mm to 120 mm with respect to the skirt side bonded to the roof material when viewed from the fold in the longitudinal direction. Tarpaulin for the wall. A multi-layer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin-based paint, For the side wall using a waterproof sheet for roof formed in the middle of the longitudinal direction of the waterproof sheet in the transverse direction over the transverse direction perpendicular to the longitudinal direction, and formed in the longitudinal direction over the longitudinal direction. A tarpaulin,
The longitudinal folding portion of the waterproof sheet for the wall is applied by developing the longitudinal folding portion corresponding to the interval when the interval between the first roof tile and the wall surface is wide. Thus, the wall-side waterproof sheet is configured to cover the gap with the wall-side waterproof sheet. A multi-layer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin-based paint, For the side wall using a waterproof sheet for roof formed in the middle of the longitudinal direction of the waterproof sheet in the transverse direction over the transverse direction perpendicular to the longitudinal direction, and formed in the longitudinal direction over the longitudinal direction. A method of installing a tarpaulin,
On the wall where the waterproof sheet for the wall is installed, on the wall where the thin plate wood and the L-shaped sheet metal are provided in the vicinity of the roof surface and the wall surface,
Fixing one side of the lateral direction from the center of the waterproof sheet for the wall to the wall surface;
A step of adhering the bottom side forming the other side in the transverse direction of the waterproof sheet for the wall with an adhesive tape to the first-stage roof material at a predetermined distance from the tangent line between the roof surface and the wall surface;
Fixing the thin plate wood with screws on the hem side edge,
The process of constructing the waterproof sheet for the wall and the thin sheet wood in a state covered with the L-shaped sheet metal,
The installation method of the waterproof sheet for the wall characterized by having. A multi-layer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin-based paint, For the side wall using a waterproof sheet for roof formed in the middle of the longitudinal direction of the waterproof sheet in the transverse direction over the transverse direction perpendicular to the longitudinal direction, and formed in the longitudinal direction over the longitudinal direction. It is a waterproof sheet, and is a method of installing a waterproof sheet for a wall provided with a fold in the center portion in the longitudinal direction of the waterproof sheet for the wall,
Refracting the waterproof sheet for the wall along the crease into a "<"shape;
Installing the crease portion in the longitudinal direction along the tangent line between the roof surface and the wall surface;
Peeling the release paper on the wall surface side of the waterproof sheet for the wall and adhering to the wall surface with an adhesive tape;
Peeling off the release paper on the hem side of the waterproof sheet for the wall and adhering it to the peak of the roofing material with an adhesive tape;
The trough portion of the roofing material is bonded while the longitudinal folding portion is stretched in the longitudinal direction along the trough portion of the roofing material while the hem is stretched in the lateral direction so as to fit inside the rain retainer sheet metal. Process,
The installation method of the waterproof sheet for the wall characterized by having. A multi-layer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin-based paint, For the side wall using a waterproof sheet for roof formed in the middle of the longitudinal direction of the waterproof sheet in the transverse direction over the transverse direction perpendicular to the longitudinal direction, and formed in the longitudinal direction over the longitudinal direction. A method of installing a tarpaulin,
A step of refracting into a "<" shape along the crease in the central portion in the longitudinal direction of the waterproof sheet for the wall;
Installing the crease portion in the longitudinal direction along the tangent line between the roof surface and the wall surface;
Peeling off the release paper on the hem side of the waterproof sheet for the wall and adhering it to the peak of the roofing material with an adhesive tape;
The trough portion of the roofing material is bonded while extending the longitudinally folded overlapped portion in the longitudinal direction so as to extend along the trough portion of the roofing material while extending the hem in the lateral direction so that the hem is placed inside the rain retainer sheet metal. , Peeling off the release paper on the wall surface side of the waterproof sheet for the wall and bonding it to the wall surface with an adhesive tape;
The installation method of the waterproof sheet for the wall characterized by having. A multi-layer waterproof sheet in which an elastomer sheet having tear resistance and heat shrinkability is bonded to the front side of an aluminum foil using an adhesive, and the back side of the aluminum foil is coated with a resin-based paint, For the side wall using a waterproof sheet for roof formed in the middle of the longitudinal direction of the waterproof sheet in the transverse direction over the transverse direction perpendicular to the longitudinal direction, and formed in the longitudinal direction over the longitudinal direction. A method of installing a tarpaulin,
In the wall where the waterproof sheet for the wall is installed, in the vicinity of the wall where the thin plate wood, the face door-shaped sheet metal plate, and the L-shaped sheet metal are provided in the vicinity of the roof surface and the wall surface,
Fixing one side of the lateral direction from the center of the waterproof sheet for the wall to the wall surface;
The skirt side forming the other side in the transverse direction of the waterproof sheet for the wall is a step of adhering to the first-stage roof material near the wall at a predetermined distance from the tangent line between the roof surface and the wall surface with an adhesive tape;
Fixing the thin plate wood with screws on the hem side;
Temporarily fixing the face door-shaped sheet metal sheet covering the gaps in the recesses of the roof material to the thin sheet wood;
The process of constructing the waterproof sheet for the wall and the thin sheet wood in a state covered with the L-shaped sheet metal,
The installation method of the waterproof sheet for the wall characterized by having.   9. A building, wherein a wall of a building is constructed by using the method for installing a waterproof sheet for a wall according to claim 5.