CN115045449B - Reverse necking method for waterproof coiled material of roof - Google Patents
Reverse necking method for waterproof coiled material of roof Download PDFInfo
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- CN115045449B CN115045449B CN202210715489.5A CN202210715489A CN115045449B CN 115045449 B CN115045449 B CN 115045449B CN 202210715489 A CN202210715489 A CN 202210715489A CN 115045449 B CN115045449 B CN 115045449B
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- coiled material
- roof
- sealant
- wall body
- pressing strip
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- 239000000463 material Substances 0.000 title claims abstract description 259
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 90
- 239000000565 sealant Substances 0.000 claims abstract description 82
- 230000007306 turnover Effects 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 17
- 238000010276 construction Methods 0.000 description 16
- 239000011324 bead Substances 0.000 description 14
- 230000005484 gravity Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1687—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure the insulating material having provisions for roof drainage
- E04D13/1693—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure the insulating material having provisions for roof drainage the upper surface of the insulating material forming an inclined surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1687—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure the insulating material having provisions for roof drainage
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/06—Apparatus or tools for roof working for handling roofing or sealing material in roll form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/07—Apparatus or tools for roof working for handling roofing or sealing material in bulk form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D2013/1422—Parapet building elements for retaining the roof flashing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Abstract
The invention relates to the field of roof waterproofing, and discloses a reverse necking method of a waterproof coiled material of a roof. The method comprises the following steps: s1, bonding one end of a first coiled material on the upper surface of a wall body of a roof by using first sealant; the incision edge of the first coiled material faces to the inner side of the wall body, and the front surface of the first coiled material faces downwards; s2, at the edge of the notch of the first coiled material, the first coiled material is secondarily fixed on the upper surface of the wall body by using a first pressing strip and a first fastener; s3, turning the first coiled material along the outline of the first pressing strip, and wrapping the surface of the first pressing strip by the first coiled material; s4, paving the first coiled material along the upper surface and the side surface of the wall body, and extending the first coiled material to the roof; the first coiled material is lapped and fixed on a second coiled material on the roof. The method is used for solving the problem that the seam is easy to generate at the closing-up position of the waterproof coiled material on the wall body to cause leakage, and achieves the purpose of improving the durability and reliability of the roof waterproof engineering.
Description
Technical Field
The invention relates to the field of roof waterproofing, in particular to a reverse necking method of a waterproof coiled material of a roof.
Background
Parapet walls are usually arranged around the roof of the building, and are short walls around the roof, so that on one hand, people can be prevented from falling off from the high altitude when the roof moves; on the other hand, the waterproof wall can provide a construction foundation for roof waterproof and outer wall decoration. When the roof waterproof layer is constructed, the waterproof coiled material is paved at the parapet wall and is required to be closed. The conventional practice is as follows: and (3) turning up the waterproof coiled material to a certain height position of the parapet wall, fixing the edge of the incision of the waterproof coiled material by adopting a pressing strip and a fastener, and finally smearing a sealing glue with the length along the edge of the incision of the waterproof coiled material and the edge of the pressing strip for sealing.
Because the waterproof coiled material closes up in the side of parapet, the incision edge and the layering of waterproof coiled material are fixed in the side of parapet. On one hand, under the long-time action of self gravity and expansion and contraction, the edge of the incision and the pressing strip are easy to generate relative deformation; on the other hand, the pressing strips and the fastening pieces are easy to rust after long-term exposure, so that the fastening at the local closing position is invalid, and gaps are formed between the waterproof coiled materials and the side surfaces of the parapet wall. The sealing glue on the uppermost layer is exposed, when the sealing glue is aged and cracked due to long-time exposure, moisture on the parapet wall surface can permeate the sealing glue and further flow to the roof structural layer through gaps between the waterproof coiled materials and the parapet wall, so that roof leakage is caused, and the durability and reliability of the roof waterproof engineering are reduced. Further, when outdoor moisture leaks between the waterproof coiled material and the structural layer through a gap at the closing-in position of the waterproof coiled material, a water channeling channel may be formed, so that an indoor leakage point is inconsistent with an outdoor leakage point, an actual leakage point is not well determined, and maintenance is difficult.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art, and provides a reverse closing method of a waterproof coiled material of a roof, which is used for solving the problem that a gap is easily generated at the closing position of the waterproof coiled material on a wall body to cause leakage, so as to improve the durability and the reliability of the waterproof engineering of the roof.
The technical scheme adopted by the invention is that the reverse necking method of the waterproof coiled material of the roof comprises the following steps:
s1, bonding one end of a first coiled material on the upper surface of a wall body of a roof by using first sealant; the incision edge of the first coiled material faces to the inner side of the wall body, and the front surface of the first coiled material faces downwards;
S2, at the edge of the notch of the first coiled material, the first coiled material is secondarily fixed on the upper surface of the wall body by using a first pressing strip and a first fastener;
s3, turning the first coiled material along the outline of the first pressing strip, and wrapping the surface of the first pressing strip by the first coiled material;
S4, paving the first coiled material along the upper surface and the side surface of the wall body, and extending the first coiled material to the roof; the first coiled material is lapped and fixed on a second coiled material on the roof.
In this scheme, use the thickness direction of wall body as width direction to the wall body is close to one side of roofing and is inboard, uses the construction face of first coiled material as the back. The closing-in position of the first coiled material is provided with a fixing section, a turnover section and a covering section. The fixed section is a first coiled material pressed by the first pressing strip, the folding section is a first coiled material folded along the side profile of the first pressing strip, and the covering section is a first coiled material covering the other profiles of the first pressing strip. The slit edge of the first web is folded back on itself, i.e. said reverse-direction slit. In addition, along the length direction of wall body, first layering first coiled material, the second coiled material all has fixed length, and a plurality of first layering is mutual concatenation, and a plurality of first coiled material is overlap joint, a plurality of the second coiled material is also overlap joint each other. For short walls, the first web may also be a whole strip.
In this scheme, the binding off position of first coiled material changes to the upper surface of wall body, and binding off position from bottom to top includes first sealant, the fixed section of first coiled material, first layering and the cover section of first coiled material in proper order. First, in one aspect, the first sealant acts as a face seal while bonding the first web, the first sealant covering the surface of the fixed section of the first web. Compared with the line sealing mode, namely the mode of only smearing the line sealing on the incision edge of the first coiled material, the surface sealing can still keep the sealing effect when local cracks are generated, and the sealing reliability can be effectively improved. On the other hand, the first sealant is positioned between the surfaces of the first coiled material and the wall body, is not directly exposed to the external environment, can avoid the problem of ageing and cracking of the sealant caused by long-time sun-drying and rain, and can effectively improve the sealing durability. Furthermore, in one aspect, the first web is supported by the upper surface of the wall to counteract the effects of its own weight. The incision edge of the first coiled material is not pulled by self gravity, is not easy to generate fold deformation, and can be kept flatly adhered to the upper surface of the wall body. On the other hand, the fixed and folded sections of the first coil form a bent structure (e.g., a right angle bend) that increases the moment of inertia of the edge of the first coil, which remains smoothly bonded to the upper surface of the wall even in the case of thermal expansion and contraction of the first coil or in the case of uneven compression of the first bead. Secondly, on the one hand, the first layering also provides the support by the upper surface of wall body to offset the influence of its own gravity, first layering can not produce bending deformation, can laminate, fasten the fixed section of first coiled material all the time. On the other hand, the appearance outline of the first pressing strip and the first fastening piece on the first pressing strip are wrapped by the first coiled material, so that the moisture of the external environment can be effectively isolated, rust of the first pressing strip or the first fastening piece is avoided, and the local fastening failure of the first pressing strip to the first coiled material is further avoided. Finally, the closing-in position of the first coiled material is located on the upper surface of the wall body, compared with the side surface of the wall body, moisture falling on the closing-in position flows away along the surface of the first coiled material and the upper surface of the wall body under the action of gravity, and cannot permeate into the first sealant. Thus, even if the closing-in position has a small amount of gaps (gaps of the first sealant or gaps of the first coil and the wall body), leakage is not caused.
According to the scheme, the closing-in position of the first coiled material is changed to the upper surface of the wall body, the first sealant is coated on the fixed section of the first coiled material, the first coiled material is folded and wrapped by means of the first pressing strip and the like, so that the sealing effect of the closing-in position is guaranteed, the first coiled material can be always attached to the surface of the wall body, the problem that the closing-in position of the waterproof coiled material on the wall body is easy to produce gaps to cause leakage is solved, and the durability and the reliability of a roof waterproof project are improved.
Preferably, the first coil is further processed according to step S5, specifically as follows:
S5, coating second sealant at the turnover position of the first coiled material on the upper surface of the wall body, wherein the second sealant covers between the side surface of the first coiled material and the upper surface of the wall body.
In one aspect, the first sealant is located between the first web and the wall, but is still exposed on one side of the folded over section of the first web. The second sealant is smeared along the side to completely seal the first sealant, so that the first sealant is prevented from aging and cracking. On the other hand, the second sealant covers between the turnover section of the first coiled material and the upper surface of the wall body, and corresponds to a second sealing line of the closing-in position of the first coiled material, so that the sealing effect of the closing-in position is further improved through a redundant design. The second sealant should be applied to ensure no leakage of the sealant.
Further, the height of the second sealant is more than or equal to 1/2 of the height of the side surface of the first coiled material; the width of the second sealant is larger than or equal to 1/2 of the height of the side face of the first coiled material. The scheme ensures the effect of redundant seal design by limiting the height and width of the second sealant coating.
Preferably, the step S1 specifically includes: firstly, making a position reference mark on the upper surface of a wall body of a roof, then uniformly smearing first sealant on one side of the position reference mark, and finally bonding a first coiled material on the upper surface of the wall body along the position reference mark.
The position reference mark is used as a reference of the closing-in position of the first coiled material, so that the construction positions of the first sealant, the first coiled material and the first pressing strip can be confirmed in an auxiliary mode, and the construction effect of the first sealant, the first coiled material and the first pressing strip is guaranteed. The first sealing glue is smeared along the position reference mark, the first coiled material is bonded along the position reference mark, so that the surface seal of the fixed section of the first coiled material in the length direction can be kept uniform, and the width of the surface seal is ensured. The first pressing strips are arranged along the position reference marks, so that a plurality of first pressing strips can be spliced into a long straight line, and the first coiled material is prevented from being folded around the first coiled material after being folded and wrapped.
Further, the width of the first sealant is larger than the width of the first pressing strip, and is larger than or equal to the width of the first coiled material pressed by the first pressing strip. The width of the first pressing strip is not smaller than the width of the fixed section of the first coiled material, and the first pressing strip can be ensured to completely press the fixed section. The incision edge of the first coiled material, namely the incision edge of the fixed section is positioned below the first pressing strip, so that the incision edge can be prevented from being wrinkled and stripped later, and gaps are formed between the first coiled material and the wall surface. The width that first sealant was paintd is greater than the width of first layering, makes first layering to first coiled material fastening installation back, and both ends that first sealant can be partly overflowed to the both sides of the fixed section of first coiled material and the both sides of first layering, forms the sealed binding off of surrounding type, strengthens the sealed effect of first sealant.
Preferably, the step S2 further includes: along the length direction of the wall body, a plurality of first pressing strips are spliced with each other, and a plurality of first coiled materials are mutually overlapped; the splicing openings between the first pressing strips are staggered with the lap joint positions between the first coiled materials.
The two ends of the first pressing strips are respectively fixed through first fasteners, and when the two first pressing strips are spliced, the first fasteners are arranged on the two sides of the spliced joint. When the two rolls of the first web material overlap, the first web material is partially overlapped. When the splice opening of the first pressing strip is positioned at the lap joint position of the first coiled material, the first fastener at the position needs to play a role in fixing the splice opening and fixing the first coiled material simultaneously, and the first fastener needs to pass through two layers of first coiled materials more difficultly, so that the splice opening of the first pressing strip is easy to generate dislocation during fixing. Further, for the first bead to press the lap position of the first web, the first fastener thereon may be properly set after avoiding the lap position.
In this scheme, there are multiple fixing modes of the first coiled material and the second coiled material on the roof, and one of the mechanical fixing methods can refer to the following steps:
s6, fixing the first coiled material and the second coiled material on the roof by using a second pressing strip and a second fastening piece at the lap joint position of the first coiled material and the second coiled material;
s7, covering the second pressing strip and the second fastening piece by using a third coiled material, wherein two sides of the third coiled material are fixedly connected with the first coiled material and the second coiled material respectively.
Preferably, the first web is overlapped under the second web; the width of the lap joint of the first coiled material and the second coiled material is larger than the width of the second pressing strip.
The second coiled material is paved to the lower edge of the wall body along the roof, and the second coiled material is lapped above the first coiled material. The second web maintains a continuous flow directing surface that prevents moisture from penetrating through the gap at the point of overlap of the first web and the second web. Compared with the bonding mode, the first coiled material and the second coiled material can be simply and reliably fixed on the roof by the fastener once by adopting the mode of fixing the pressing strips. The third coiled material covers the second pressing strip and the second fastening piece, so that the second pressing strip and the second fastening piece can be prevented from being rusted, and further fastening failure of the second pressing strip to the first coiled material and the second coiled material is avoided.
Preferably, the first sealant and/or the second sealant is a silicone weather-resistant sealant.
Preferably, the first coiled material, the second coiled material and the third coiled material are TPO waterproof coiled materials, wherein the second coiled material is in a P type or L type, and the first coiled material and the third coiled material are in an H type. Wherein, the H type is a homogeneous coiled material, an inner reinforcing material or a backing material is not adopted, and the coiled material is easy to bend and attach to the construction surface. The first coil of class H makes it easy to fold over and wrap the first bead, and the third coil of class H makes it easy to cover the second bead. The second coiled material of the mechanical fixing system is P-type, and the second coiled materials of the full-sticking system and the empty-laying system are L-type. Further, the first coiled material, the second coiled material and the third coiled material are TPO self-adhesive waterproof coiled materials, so that construction is facilitated.
Compared with the prior art, the invention has the beneficial effects that:
According to the scheme, the closing-in position of the first coiled material is changed to the upper surface of the wall body, the first sealant is coated on the fixed section of the first coiled material, the first coiled material is folded and wrapped by means of the first pressing strip and the like, so that the sealing effect of the closing-in position is guaranteed, the first coiled material can be always attached to the surface of the wall body, the problem that the closing-in position of the waterproof coiled material on the wall body is easy to produce gaps to cause leakage is solved, and the durability and the reliability of a roof waterproof project are improved.
According to the scheme, the second sealing line of the closing-in position of the first coiled material is realized through the second sealant, so that the sealing effect of the closing-in position is further improved through the redundant design.
According to the scheme, through the width relation among the first sealant, the first pressing strip and the fixed section of the first coiled material, the first pressing strip is ensured to completely press the fixed section, and the phenomenon that the edges of the cut of the fixed section are wrinkled and stripped in the future is avoided; meanwhile, two ends of the first sealant can partially overflow to two sides of the fixed section of the first coiled material and two sides of the first pressing strip to form an enclosed sealing closing-in, so that the sealing effect of the first sealant is enhanced.
Drawings
Fig. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a according to an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion B according to an embodiment of the present invention.
Fig. 4 is a top view of an embodiment of the present invention.
Description of the reference numerals: roof 1, wall 2, position reference mark 3, first sealant 4, second sealant 5, first layering 6, second layering 7, first fastener 8, second fastener 9, first coiled material 10, fixed section 11, turn-over section 12, cover section 13, second coiled material 20, third coiled material 30.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1, 2,3 and 4, the method for reversely closing up the waterproof coiled material of the roof comprises the following steps:
S1, bonding one end of a first coiled material 10 on the upper surface of a wall body 2 of a roof 1 by using a first sealant 4; the cut edge of the first coiled material 10 faces to the inner side of the wall body 2, and the front surface of the first coiled material 10 faces downwards;
s2, at the edge of the notch of the first coiled material 10, the first coiled material 10 is secondarily fixed on the upper surface of the wall body 2 by using a first pressing strip 6 and a first fastening piece 8;
s3, turning the first coiled material 10 along the outline of the first pressing strip 6, and wrapping the surface of the first pressing strip 6 by the first coiled material 10;
S4, paving the first coiled material 10 along the upper surface and the side surface of the wall body 2, and extending to the roof 1; the first web 10 overlaps the second web 20 secured to the roof 1.
In this embodiment, the thickness direction of the wall 2 is taken as the width direction, the side of the wall 2 close to the roof 1 is taken as the inner side, and the construction surface of the first coil 10 is taken as the back surface. The first coil 10 has a fixed section 11, a folded section 12 and a cover section 13 at its closing position. The fixing section 11 is a first coiled material 10 pressed by the first pressing strip 6, the turnover section 12 is the first coiled material 10 turned over along the side profile of the first pressing strip 6, and the covering section 13 is the first coiled material 10 covering the rest profile of the first pressing strip 6. The slit edges of the first web 10 are folded back on themselves, i.e. said reverse-direction slit. In addition, along the length direction of the wall body 2, the first pressing strips 6, the first coiled materials 10 and the second coiled materials 20 all have fixed lengths, a plurality of the first pressing strips 6 are mutually spliced, a plurality of the first coiled materials 10 are mutually overlapped, and a plurality of the second coiled materials 20 are mutually overlapped. For short walls 2, the first web 10 may also be a whole strip.
In this scheme, the binding off position of first coiled material 10 changes to the upper surface of wall body 2, and binding off position from bottom to top includes first sealant 4, the fixed section 11 of first coiled material 10, first layering 6 and the cover section 13 of first coiled material 10 in proper order. First, on the one hand, the first sealer 4 plays a role of face seal while bonding the first web 10, and the first sealer 4 covers the surface of the fixed section 11 of the first web 10. Compared with the line sealing mode, namely the mode of only smearing the line sealing on the incision edge of the first coiled material 10, the surface sealing can still maintain the sealing effect when local cracks are generated, and the sealing reliability can be effectively improved. On the other hand, the first sealant 4 is located between the first coiled material 10 and the surface of the wall body 2, is not directly exposed to the external environment, can avoid the problem of ageing and cracking of the sealant caused by long-time sun and rain, and can effectively improve the sealing durability. Furthermore, on the one hand, the first web 10 is supported by the upper surface of the wall 2 to counteract the effect of its own weight. The cut edge of the first coiled material 10 is not pulled by the gravity of the first coiled material, is not easy to generate fold deformation, and can be bonded on the upper surface of the wall body 2 smoothly. On the other hand, the fixed section 11 and the folded section 12 of the first coil 10 form a bent structure (e.g., a right angle bend) that increases the moment of inertia of the edge of the first coil 10, and the edge or the fixed section 11 remains smoothly bonded to the upper surface of the wall body 2 even in the case of expansion with heat and contraction with cold of the first coil 10 or in the case of uneven compression of the first bead 6. Secondly, on the one hand, the first pressing strip 6 is also supported by the upper surface of the wall body 2 so as to counteract the influence of gravity of the first pressing strip, and the first pressing strip 6 can not generate bending deformation and can always fit and fasten the fixed section 11 of the first coiled material 10. On the other hand, the appearance outline of the first pressing strip 6 and the first fastening piece 8 on the first pressing strip are wrapped by the first coiled material 10, so that moisture in the external environment can be effectively isolated, rust generated by the first pressing strip 6 or the first fastening piece 8 is avoided, and the local fastening failure of the first pressing strip 6 to the first coiled material 10 is further avoided. Finally, the closing-in position of the first coiled material 10 is located on the upper surface of the wall body 2, and compared with the side surface of the wall body 2, moisture falling on the closing-in position flows away along the surface of the first coiled material 10 and the upper surface of the wall body 2 under the action of gravity and cannot permeate into the first sealant 4. Thus, even if the closing-in position has a small amount of gap (gap of the first sealant 4 or gap of the first coil 10 and the wall 2), no leakage is caused.
According to the scheme, the closing-in position of the first coiled material 10 is changed to the upper surface of the wall body 2, the fixing section 11 of the first coiled material 10 is coated with the first sealant 4, the first coiled material 10 is folded and wrapped with the first pressing strip 6 and the like, so that the sealing effect of the closing-in position is guaranteed, the first coiled material 10 can be always attached to the surface of the wall body 2, the problem that the closing-in position of the waterproof coiled material on the wall body is easy to produce gaps to cause leakage is solved, and the durability and the reliability of a roof waterproof project are improved.
Specifically, in step S2, the first molding 6 is a U-shaped molding, and the first fastener 8 may be a rivet or an expansion bolt. The first fastener 8 passes through the first bead 6, the first web 10 and the first sealant 4 and fixes it to the upper surface of the wall 2. The first fastening pieces 8 are distributed at 200-300mm intervals toward the center with reference to the two ends of the first pressing strip 6. In step S3, the first web 10 needs to be kept flat when being folded and wrapped around the first pressing bar 6, so as to avoid wrinkling. In step S4, the construction method and the construction requirements for laying the first coil 10 along the upper surface and the side surface of the wall 2 may be referred to as the construction method and the construction requirements for laying the second coil 20 on the roof 1.
Preferably, the position of the first web 10 at which it is being necked in is further processed according to step S5, as follows:
s5, second sealant 5 is smeared at the turnover position of the first coiled material 10 on the upper surface of the wall body 2, and the second sealant 5 is covered between the side surface of the first coiled material 10 and the upper surface of the wall body 2.
In one aspect, the first sealant 4, while located between the first web 10 and the wall 2, is still exposed on one side of the folded over section 12 of the first web 10. The second sealant 5 is applied along the side to completely seal the first sealant 4, thereby avoiding the aging and cracking of the first sealant 4. On the other hand, the second sealant 5 covers between the folded section 12 of the first coiled material 10 and the upper surface of the wall body 2, and corresponds to a second sealing line of the closing position of the first coiled material 10, so that the sealing effect of the closing position is further improved through a redundant design. The second sealant 5 should be applied to ensure no opening leakage.
Further, the height of the second sealant 5 is more than or equal to 1/2 of the height of the side surface of the first coiled material 10; the smearing width of the second sealant 5 is more than or equal to 1/2 of the height of the side face of the first coiled material 10. The scheme ensures the effect of redundant sealing design by limiting the height and width of the second sealant 5. Specifically, the cross-sectional shape of the second sealant 5 after being applied is a semicircle, and the radius thereof is slightly smaller than the side height of the first coil 10. The semicircular second sealant 5 ensures that it has a sufficient thickness to effectively resist its own aging cracking.
As shown in fig. 1 and 4, preferably, the step S1 specifically includes: the method comprises the steps of firstly, making a position reference mark 3 on the upper surface of a wall body 2 of a roof 1, then uniformly coating first sealant 4 on one side of the position reference mark 3, and finally bonding a first coiled material 10 on the upper surface of the wall body 2 along the position reference mark 3.
The position reference mark 3 is used as a reference of the closing-in position of the first coiled material 10, and can assist in confirming the construction positions of the first sealant 4, the first coiled material 10 and the first pressing strip 6, so that the construction effect of the first coiled material is ensured. The first sealant 4 is smeared along the position reference mark 3, and the first coiled material 10 is bonded along the position reference mark 3, so that the surface seal of the fixed section 11 of the first coiled material 10 in the length direction can be kept uniform, and the width of the surface seal is ensured. The first pressing strips 6 are arranged along the position reference marks 3, so that a plurality of first pressing strips 6 can be spliced into a long straight line, and the first coiled material 10 is prevented from being folded around the first coiled material after being folded and wrapped.
Specifically, the position reference mark 3 may be a reference line formed by a bullet wire method or a reference symbol marked by a marker. The first sealant 4 is applied along one side of the position reference mark 3 and the first web 10 is bonded, and cannot cover the position reference mark 3.
As shown in FIG. 2, further, the width of the first sealant 4 is greater than the width of the first bead 6 by greater than or equal to the width of the first web 10 below the first bead 6. The width of the first pressing strip 6 is not smaller than the width of the fixed section 11 of the first coiled material 10, so that the first pressing strip 6 can be ensured to completely press the fixed section 11. The cut edge of the first web 10, i.e. the cut edge of the fixing section 11, is located under the first bead 6, avoiding that the cut edge will later be creased and peeled off, resulting in a gap between the first web 10 and the surface of the wall 2. The width that first sealant 4 smeared is greater than the width of first layering 6, makes first layering 6 to the back of first coiled material 10 fastening installation, and both ends that first sealant 4 can partly spill over to the both sides of the fixed section 11 of first coiled material 10 and the both sides of first layering 6, forms the sealed binding off of surrounding type, strengthens the sealed effect of first sealant 4.
Specifically, based on the width of the first bead 6, the fixed section 11 of the first web 10 is 0-2mm narrower than it, and the width of the first sealant 4 applied is 0-2mm wider than it. During construction, the first sealant 4 is smeared in alignment with the position reference mark 3, the first coiled material 10 is bonded in a mode of deviating from the position reference mark by 0-2mm, and the first pressing strip 6 is installed in alignment with the position reference mark 3. The first sealant 4 should be applied to ensure no opening leakage.
As shown in fig. 4, preferably, the step S2 further includes: along the length direction of the wall body 2, a plurality of first pressing strips 6 are spliced with each other, and a plurality of first coiled materials 10 are mutually overlapped; the splice between the first beads 6 is offset from the overlap of the first web 10.
Two ends of the first pressing strip 6 are respectively fixed through first fasteners 8, and when the two first pressing strips 6 are spliced, the first fasteners 8 are arranged on two sides of the spliced joint. When two rolls of the first web material 10 overlap, the first web material 10 is partially overlapped. When the splice opening of the first pressing strip 6 is positioned at the lap joint position of the first coiled material 10, the first fastening piece 8 at the position needs to play a role in fixing the splice opening position and fixing the first coiled material 10 at the same time, and the first fastening piece 8 needs to penetrate through two layers of the first coiled materials 10 more difficultly, so that the splice opening of the first pressing strip 6 is easy to generate dislocation during fixing. Further, for the first presser bar 6 pressing the lap position of the first web 10, the first fastener 8 thereon may be appropriately set after avoiding the lap position.
As shown in fig. 3, in this embodiment, the first coil 10 and the second coil 20 on the roof 1 are fixed in various manners, and one of the mechanical fixing methods may refer to the following steps:
s6, fixing the first coiled material 10 and the second coiled material 20 on the roof 1 by using a second pressing strip 7 and a second fastening piece 9 at the lap joint position of the first coiled material 10 and the second coiled material 20;
s7, covering the second pressing strip 7 and the second fastening piece 9 by using a third coiled material 30, wherein two sides of the third coiled material 30 are fixedly connected with the first coiled material 10 and the second coiled material 20 respectively.
Preferably, the first web 10 is overlapped under the second web 20; the width of the overlap of the first web 10 and the second web 20 > the width of the second bead 7.
A second roll 20 is laid along the roof 1 to the lower edge of the wall 2, the second roll 20 overlapping the first roll 10. The second web 20 maintains a continuous flow-directing surface that prevents moisture from penetrating the gap at the point of overlap of the first web 10 and the second web 20. Compared with the bonding mode, the first coiled material 10 and the second coiled material 20 can be simply and reliably fixed on the roof 1 by adopting the pressing strip fixing mode through the fastener at one time. The third coiled material 30 covers the second pressing strip 7 and the second fastening piece 9, so that rust generated by the second pressing strip 7 and the second fastening piece 9 can be avoided, and further fastening failure of the second pressing strip 7 to the first coiled material 10 and the second coiled material 20 is avoided.
Specifically, roofing 1 is metal roofing 1, and second layering 7 is U type layering, and second fastener 9 is the screw. The second batten 7 is arranged close to the lower edge of the wall body 2. The second fastener 9 passes through the second batten 7, the second coiled material 20 and the first coiled material 10 in sequence to fix the second coiled material on the metal roof 1. The second fastening pieces 9 are distributed at 200-300mm intervals toward the center with reference to the two ends of the second pressing strip 7. The overlap width of the third web 30 with the first web 10 and the second web 20 is not less than 50mm. The third coil 30 is welded to the first coil 10 by a hand-held welding gun, and the third coil 30 is welded to the second coil 20 by a seam welder.
Preferably, the first sealant 4 and/or the second sealant 5 is a silicone weather-resistant adhesive.
Preferably, the first roll 10, the second roll 20 and the third roll 30 are TPO waterproof rolls, wherein the second roll 20 is P-type or L-type, and the first roll 10 and the third roll 30 are H-type. Wherein, the H type is a homogeneous coiled material, an inner reinforcing material or a backing material is not adopted, and the coiled material is easy to bend and attach to the construction surface. The first web 10 of class H is easily folded over and wrapped around the third web 30 of class 6,H of the first bead so that it easily covers the second bead 7. The second coiled material of the mechanical fixing system is P-type, and the second coiled materials of the full-sticking system and the empty-laying system are L-type. Further, the first roll 10, the second roll 20 and the third roll 30 are all TPO self-adhesive waterproof rolls, so as to facilitate construction.
It should be understood that the foregoing examples of the present invention are provided for the purpose of clearly illustrating the technical aspects of the present invention and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The reverse necking method of the waterproof coiled material of the roof is characterized by comprising the following steps of:
s1, bonding one end of a first coiled material on the upper surface of a wall body of a roof by using first sealant; the incision edge of the first coiled material faces to the inner side of the wall body, and the front surface of the first coiled material faces downwards;
S2, at the edge of the notch of the first coiled material, the first coiled material is secondarily fixed on the upper surface of the wall body by using a first pressing strip and a first fastening piece;
S3, turning the first coiled material along the outline of the first pressing strip, and wrapping the surface of the first pressing strip by the first coiled material;
s4, paving the first coiled material along the upper surface and the side surface of the wall body and extending the first coiled material to the roof; the first coiled material is lapped and fixed on a second coiled material on the roof;
And S5, smearing second sealant at the turnover position of the first coiled material on the upper surface of the wall body, wherein the second sealant covers between the side surface of the first coiled material and the upper surface of the wall body.
2. The method for reverse necking a waterproof roll of a roof according to claim 1, further comprising the steps of:
s6, fixing the first coiled material and the second coiled material on the roof by using a second pressing strip and a second fastening piece at the lap joint position of the first coiled material and the second coiled material;
And S7, covering the second pressing strip and the second fastening piece by using a third coiled material, wherein two sides of the third coiled material are fixedly connected with the first coiled material and the second coiled material respectively.
3. The method for reverse necking up a waterproof coiled material of a roof according to claim 1, wherein the step S1 specifically includes: firstly, making a position reference mark on the upper surface of a wall body of a roof, then uniformly smearing first sealant on one side of the position reference mark, and finally bonding a first coiled material on the upper surface of the wall body along the position reference mark.
4. The method for reversely closing up the waterproof coiled material of the roof according to claim 3, wherein the width of the first sealant is larger than or equal to the width of the first pressing strip.
5. The method for reverse necking up a waterproof roll of a roof according to claim 1, wherein the step S2 further comprises: along the length direction of the wall body, a plurality of first pressing strips are spliced with each other, and a plurality of first coiled materials are mutually overlapped; the splicing openings between the first pressing strips are staggered with the lap joint positions between the first coiled materials.
6. The method for reversely closing up the waterproof coiled material of the roof according to claim 1, wherein the height of the second sealant is more than or equal to 1/2 of the height of the side surface of the first coiled material; the width of the second sealant is larger than or equal to 1/2 of the height of the side face of the first coiled material.
7. The method for reverse necking a waterproof coiled material of a roof according to claim 2, wherein the first coiled material is lapped below the second coiled material; the width of the lap joint of the first coiled material and the second coiled material is larger than the width of the second pressing strip.
8. The method for reversely closing up the waterproof coiled material of the roof according to claim 2, wherein the first coiled material, the second coiled material and the third coiled material are TPO waterproof coiled materials, wherein the second coiled material is P-type or L-type, and the third coiled material is H-type.
9. The method for reverse necking a waterproof roll of a roof according to any one of claims 1 to 8, wherein the first sealant and/or the second sealant is a silicone weather-resistant adhesive.
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| CN213086875U (en) * | 2020-09-02 | 2021-04-30 | 北京远大洪雨防水工程有限公司 | Basement bottom plate and wall body handing-over department waterproof layer processing structure |
| CN217680095U (en) * | 2022-06-22 | 2022-10-28 | 深圳市科顺防水工程有限公司 | Reverse binding off structure of waterproofing membrane of roofing |
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| JP2659529B2 (en) * | 1995-11-30 | 1997-09-30 | ロンシール工業株式会社 | Construction method of waterproofing sheet for structures |
| KR101035909B1 (en) * | 2010-12-15 | 2011-05-23 | 강남이앤알(주) | Fixing and finishing method for single-ply waterproofing sheet to parepet wall |
| CN210562706U (en) * | 2019-07-31 | 2020-05-19 | 广东捷基建筑装饰工程有限公司 | Be used for waterproof node structure of swimming pool wall and outer wall junction |
| CN216196107U (en) * | 2021-10-25 | 2022-04-05 | 广东科顺修缮建筑技术有限公司 | Polymer waterproofing membrane binding off structure |
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| CN213086875U (en) * | 2020-09-02 | 2021-04-30 | 北京远大洪雨防水工程有限公司 | Basement bottom plate and wall body handing-over department waterproof layer processing structure |
| CN217680095U (en) * | 2022-06-22 | 2022-10-28 | 深圳市科顺防水工程有限公司 | Reverse binding off structure of waterproofing membrane of roofing |
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