JP7202210B2 - Exterior wall renovation method - Google Patents

Description

The present invention relates to methods and the like for renovating the exterior walls of buildings.

Patent document 1 below proposes a method for renovating the outer wall of a building. The method includes the steps of removing the pre-renovation exterior wall members and insulation members and inserting new insulation wall members between the column members of the building.

JP 2016-089581 A

In the above method, the removal process reduces the function of the existing outer wall (for example, heat insulation performance, etc.), so there was a problem that residents could not renovate while living in the building. .

The present invention has been devised in view of the actual situation as described above, and the main object of the present invention is to provide an exterior wall renovation method and an exterior wall structure that enable residents to renovate while living in a building. .

The present invention is a method for renovating an outer wall of a building having an exterior material, comprising a first step of fixing a face material made of a heat insulating material to the outside of the exterior material, and a second process of fixing a tile to the outside of the face material. 2 step, wherein the face material has a support portion formed on the base surface facing the outside of the building, and in the second step, the tile is placed in the above-described manner so that a portion of the tile is in contact with the support portion; It is characterized in that it adheres to the underlying surface.

In the method for remodeling an outer wall according to the present invention, the supporting part may include a first supporting part that protrudes from the base surface and extends in a horizontal direction.

In the method for reforming an outer wall according to the present invention, a plurality of the first support portions may be provided in the vertical direction.

In the method for remodeling an outer wall according to the present invention, in the second step, the tiles may be fixed such that a portion of the load is supported by the first support portion.

In the method for remodeling an outer wall according to the present invention, the supporting part may include a second supporting part protruding from the base surface and extending in a vertical direction.

The exterior wall reforming method according to the present invention may further include a third step of fixing the second support portion to the face material prior to the second step.

In the method for remodeling an outer wall according to the present invention, in the second step, the tile may be affixed so that a portion of the tile is in contact with the second support.

The present invention is a structure of an outer wall of a building, which integrally includes a first part having an exterior material and a second part fixed to the outside of the first part, the second part being the exterior material and a tile fixed to the outside of the facing material, and the facing material has a supporting portion formed on the base surface facing the outside of the building. A part of the tile is fixed to the base surface so as to be in contact with the support.

In the structure of the outer wall according to the present invention, the supporting part may include a first supporting part protruding from the base surface and extending in a horizontal direction.

In the structure of the outer wall according to the present invention, a plurality of the first support portions may be provided in the vertical direction.

In the structure of the outer wall according to the present invention, the first supporting portion may support part of the load of the tile.

In the outer wall structure according to the present invention, the supporting part may include a second supporting part protruding from the base surface and extending in a vertical direction.

In the outer wall structure according to the present invention, the second support may be in contact with a portion of the tile.

In the exterior wall renovation method of the first invention of the present application, the face material made of heat insulating material and the tiles are fixed to the outside of the exterior material of the building, so that the existing exterior wall can be maintained while being remodeled. Therefore, the method of the first invention of the present application does not degrade the functions of the existing outer wall, so that residents can renovate the building while living in it. Furthermore, in the method of the first invention of the present application, by fixing the face material to the outside of the exterior material, the heat insulation performance of the face material can be added to the heat insulation performance of the existing outer wall. The heat insulation performance of the outer wall can be effectively enhanced.

In addition, in the method of the first aspect of the present application, the tiles are fixed to the base surface so that a part of the tiles is in contact with the supporting portion formed on the base surface of the face member. By using the support portion to position and support the tile, the tile can be fixed to the base surface in a short period of time without requiring the skill of an operator.

In the structure of the outer wall of the second invention of the present application, since the second part including the face material made of heat insulating material and the tiles is fixed to the outside of the first part having the exterior material, the heat insulating performance of the first part is improved. , the heat insulation performance of the face material can be added. Therefore, the structure of the second invention of the present application can effectively enhance the heat insulation performance of the outer wall.

In the structure of the second aspect of the present application, the tiles are fixed to the underlying surface so that a part of the tiles is in contact with the supporting portion formed on the underlying surface of the facing material. By configuring the supporting portion as positioning and supporting the tiles, it is possible to prevent the tiles from falling off while maintaining the arrangement of the tiles.

1 is a cross-sectional view showing an example of the structure of an outer wall of a building; FIG. FIG. 4 is a perspective view showing an example of an exterior material of a first portion and a second portion; It is a perspective view explaining an example of a 1st process. It is a perspective view explaining an example of a 2nd process. It is a perspective view explaining an example of the process of filling a joint material. FIG. 10 is a perspective view showing an example of the structure of the outer wall of another embodiment of the present invention; It is a perspective view explaining an example of a 3rd process.

An embodiment of the present invention will be described below with reference to the drawings. It should be noted that each drawing is for the purpose of enhancing understanding of the content of the invention, and in addition to including exaggerated representations, it should be pointed out in advance that scales and the like do not strictly match between the drawings. FIG. 1 is a cross-sectional view showing an example of a structure 1 of an outer wall of a building (hereinafter sometimes simply referred to as an "outer wall structure").

The exterior wall structure 1 of the present embodiment can be applied to buildings 2 such as houses and buildings, for example. The outer wall structure 1 comprises a first portion 3 and a second portion 4 . The second part 4 is attached to the outside of the first part 3 . The outer wall structure 1 of the present embodiment is constructed by integrating a first portion 3 and a second portion 4 .

The first part 3 of this embodiment is configured as an existing outer wall 5 of the building 2 . On the other hand, the second portion 4 of the present embodiment is configured as an outer wall for renovation that is fixed (extended) to the first portion 3 (existing outer wall 5). In addition, the first part 3 and the second part 4 may be configured as an outer wall that is integrally configured when the building 2 is newly constructed.

The first part 3 has an outer covering 6 . The first portion 3 of this embodiment includes a frame 7 , an exterior material 6 , an interior material 8 and a heat insulating material 9 . Furthermore, the first portion 3 is provided with a ventilation layer 10 extending vertically between the exterior material 6 and the heat insulating material 9 . The first portion 3 (outer wall 5) of the present embodiment is fixed to a frame body 12 including columns (not shown) and beams 11 of the building 2, for example. Note that the first portion 3 is not limited to such a configuration as long as it has the exterior material 6 .

The exterior material 6 is formed in a plate shape (panel shape). Conventionally known materials can be adopted for the exterior material 6, and examples thereof include foamed concrete panels such as ALC, slate panels, and pulp-mixed cement panels such as NFC.

The frame body 7 of the present embodiment includes, for example, an upper frame member 13, a lower frame member 14, and a pair of vertical frame members (not shown) connecting the upper frame member 13 and the lower frame member 14. there is Thereby, the frame 7 is formed in a rectangular shape when viewed from the front. For each frame member, for example, one made of metal such as steel, wood material, resin, or the like can be adopted. In addition, the frame 7 is not limited to such an aspect.

The interior material 8 is formed in a plate shape (panel shape). Conventionally known materials can be used as the interior material 8, such as gypsum board and plywood. For example, wallpaper or the like (not shown) may be adhered to the inner surface of the interior material 8 on the living room 19 side.

The heat insulating material 9 is arranged inside the frame 7 . As the heat insulating material 9, conventionally known materials can be adopted, such as fiber heat insulating materials (rock wool, glass wool, etc.) and organic heat insulating materials (polystyrene foam, phenol foam, urethane foam, etc.). etc. can be adopted.

A moisture-tight layer 15 may be provided between the heat insulating material 9 and the interior material 8 . Such a moisture-proof dense layer 15 can block air and moisture flowing from the room 19 toward the outside of the building, and can prevent dew condensation inside the outer wall. A conventionally known layer can be used for the moisture-proof dense layer 15, and for example, a polyethylene sheet or the like can be used.

The second portion 4 includes a panel 16 and tiles 17 . FIG. 2 is a perspective view showing an example of the exterior material 6 of the second portion 4 and the first portion 3. As shown in FIG.

As shown in FIGS. 1 and 2, the face material 16 is made of a heat insulating material. The face material 16 of this embodiment is formed in a plate shape (panel shape). A conventionally known heat insulating material can be adopted as the heat insulating material that constitutes the face material 16. For example, the above-mentioned organic heat insulating material, calcium carbonate heat insulating material, thermosetting resin heat insulating material, etc. are adopted. can do. In this embodiment, it is desirable to employ a heat insulating material having noncombustibility (for example, a calcium carbonate-based heat insulating material).

The face material 16 is fixed to the outside of the exterior material 6 of the first portion 3 . A conventionally known method can be adopted for fixing the surface material 16, and for example, an adhesive 23 (shown in FIG. 3) is used. Although the adhesive 23 is not particularly limited, it is desirable to employ, for example, a modified silicon-based adhesive that is excellent in durability and weather resistance. For fixing the face material 16, for example, fixing tools such as screws (not shown) may be used.

A tile 17 is adhered to the outside of the panel 16 . Conventionally known tiles can be used for the tiles 17, and ceramic tiles such as ceramics, stoneware, and porcelain can be used. The tile 17 of this embodiment comprises a front portion 17a, a back portion 17b and a side portion 17c. The front portion 17a may be provided with, for example, an uneven surface, a matte finish, or the like (not shown).

In this embodiment, a plurality of tiles 17 are adhered to the outside of the face material 16 . As shown in FIG. 2, the plurality of tiles 17 are arranged in the shape of a potato joint. In this embodiment, joints 18 are provided between the tiles 17, 17 adjacent in the vertical direction and between the tiles 17, 17 adjacent in the horizontal direction. For fixing the tiles 17, for example, an adhesive 24 (shown in color in FIG. 4) is used. A conventionally known adhesive can be used as the adhesive 24, and for example, a silicone adhesive or the like can be used.

As described above, in the outer wall structure 1 of the present embodiment, as shown in FIG. (shown in FIG. 1)) can be combined with the heat insulating performance of the face material 16 of the second portion 4. FIG. Therefore, the outer wall structure 1 of the present embodiment can effectively improve the heat insulation performance. Furthermore, in the exterior wall structure 1 of the present embodiment, the exterior of the building of the first portion 3 is effectively insulated by the face material 16 of the second portion 4, so the relative humidity increases inside the first portion 3. can prevent Thereby, in this embodiment, it is possible to prevent dew condensation inside the outer wall.

In the outer wall structure 1 of the present embodiment, a support portion 20 is formed on a base surface 16s of the panel 16 facing the outside of the building. In this embodiment, the tiles 17 are fixed to the base surface 16 s so that a portion of the tiles 17 is in contact with the support portion 20 .

The support portion 20 of the present embodiment includes a first support portion 21 . As shown in FIG. 2, the first support portion 21 protrudes from the base surface 16s and extends in the horizontal direction. The first support portion 21 is formed integrally with the face material 16 , but may be formed independently of the face material 16 .

The first support portion 21 of the present embodiment includes a pair of side surface portions 21a, 21a and an outer surface portion 21b. The pair of side portions 21a, 21a extends from the base surface 16s of the panel 16 to the outside of the building. The outer surface portion 21b extends vertically between the outer ends of the pair of side portions 21a, 21a on the outside of the building. The pair of side surface portions 21a, 21a and the outer surface portion 21b form the first support portion 21 with a substantially rectangular cross section.

In the present embodiment, the side portion 17c of the tile 17 (vertically lower side portion 17c) is in contact with the side portion 21a of the first support portion 21 . Thereby, part of the load of the tile 17 is supported by the first support portion 21 . Therefore, in the outer wall structure 1 of the present embodiment, the tiles 17 are stabilized on the base surface 16s due to the adhesive strength of the adhesive 24 (shown in FIG. 4) and the support of the load of the tiles 17 by the first support portions 21. can be affixed.

It is desirable that a plurality of first support portions 21 be provided in the vertical direction. As a result, in the exterior wall structure 1 of the present embodiment, the load of the plurality of tiles 17 arranged in the vertical direction can be partially supported by the first support portions 21 . Therefore, in the exterior wall structure 1 of this embodiment, the plurality of tiles 17 arranged in the vertical direction can be stably fixed to the base surface 16s.

The first support portion 21 is preferably provided at a position corresponding to the joint 18 (horizontal joint 18b) formed between the tiles 17, 17 adjacent in the vertical direction. As a result, the first supporting portion 21 can support the plurality of tiles 17 along the horizontal joints 18b, so that the horizontal joints 18b can be maintained while preventing the tiles 17 from falling off. Further, the first support portion 21 abuts against the side portion 17c of the tile 17, so that the adhesive 24 (shown in FIG. 4) between the back portion 17b of the tile 17 and the base surface 16s of the face member 16 is removed. Since exposure can be suppressed, deterioration of the adhesive 24 due to ultraviolet rays can be prevented, for example.

The distance D1 between the pair of first support portions 21, 21 adjacent in the vertical direction can be set as appropriate. The interval D1 in this embodiment is set equal to the vertical length L1 of the tiles 17 . Thereby, the tile 17 can be arranged between the pair of first support portions 21 , 21 . In this specification, the "same" in terms of dimensions allows for minor manufacturing variations (errors).

On the other hand, the distance D1 between the pair of first support portions 21, 21 may be set smaller than the vertical length L1 of the tile 17 to the extent that the tile 17 can be press-fitted. As a result, the pair of first support portions 21 can sandwich the tile 17 from the vertical direction and hold it stably.

The height H1 of the first support portion 21 from the base surface 16s can be set as appropriate. The height H1 in this embodiment is set smaller than the thickness W1 of the tile 17 . As a result, the first support portion 21 can be prevented from protruding outside the building from the front portion 17a of the tile 17, so that the joint 18 formed between the tiles 17 (in this example, the horizontal joint) 18b) can be formed.

The joints 18 (the vertical joints 18a and the horizontal joints 18b) of the second portion 4 may be filled with a joint material 27 (shown in color in FIG. 5). As the joint material 27, a conventionally known material can be used, and for example, a cement-based or mortar-based joint material can be used. Such a joint material 27 can more effectively prevent the tiles 17 from falling off and the adhesive 24 (shown in FIG. 4) from deteriorating due to ultraviolet rays.

Next, a method of remodeling the outer wall of a building (hereinafter sometimes simply referred to as a “remodeling method”) will be described. In the reforming method of the present embodiment, first, a face material 16 made of a heat insulating material is fixed to the outside of the exterior material 6 (first step). FIG. 3 is a perspective view explaining an example of the first step.

In the first step of the present embodiment, first, the adhesive 23 is applied to the outer surface 6s of the exterior material 6 of the first portion 3 . Next, in the first step, the surface material 16 is pressed against the outer surface 6s of the exterior material 6 to which the adhesive 23 is applied. Thus, in the first step, the face material 16 can be fixed to the outside of the exterior material 6 . The adhesive 23 is as described above.

As for the application procedure of the adhesive 23, a conventionally known procedure can be adopted. The adhesive 23 of the present embodiment is applied to the outer surface 6s of the exterior material 6 in, for example, a string-like (bead-like) or comb-like pattern. The thickness (not shown) of the adhesive 23 can be set as appropriate. In the present embodiment, the thickness of the adhesive 23 is increased according to the size of the irregularities (not shown) formed on the outer surface 6s of the exterior material 6 . As a result, the unevenness of the outer surface 6s can be absorbed by the adhesive 23 between the face material 16 and the exterior material 6, so that the exterior material 6 can be formed without unevenness adjustment using mortar, for example. The face material 16 can be stably fixed to the outside.

Next, in the reforming method of the present embodiment, the tiles 17 are fixed to the outside of the face material 16 (second step). FIG. 4 is a perspective view explaining an example of the second step. In FIG. 4, the adhesive 24 is shown in color.

In the second step, first, the adhesive 24 is applied to the base surface 16s of the face material 16 . In the second step of the present embodiment, the adhesive 24 is applied only to the base surface 16s. The adhesive 24 is as described above.

Next, in the second step, the tiles 17 are fixed to the base surface 16s of the face member 16 to which the adhesive 24 is applied. In the second step, the tiles 17 are arranged so that joints 18 (vertical joints 18a and horizontal joints 18b) are provided between the tiles 17, 17 adjacent in the vertical direction and between the tiles 17, 17 adjacent in the horizontal direction. It adheres to the base surface 16s.

In the second step of the present embodiment, the tiles 17 are fixed to the base surface 16s so that a portion of the tiles 17 are in contact with the supporting portion 20. As shown in FIG. The support portion 20 of this embodiment includes a first support portion 21 that protrudes from the base surface 16s and extends in the horizontal direction. For this reason, in the second step of the present embodiment, the rear portion of the tile 17 is moved so that the side portion (the side portion provided in the vertical direction) 17c of the tile 17 is in contact with the side portion 21a of the first support portion 21. 17b is fixed to the base surface 16s. As a result, in the second step, the tile 17 can be fixed to the base surface 16 s via the adhesive 24 while the first support portion 21 supports part of the load of the tile 17 . Therefore, in the second step, the tile 17 is stably fixed to the base surface 16s even when the adhesive 24 is not completely cured (that is, when the adhesive 24 is not fully exerting its adhesive strength). workability can be improved.

A plurality of first support portions 21 of the present embodiment are provided in the vertical direction. As a result, in the second step, a part of the load of the plurality of tiles 17 arranged in the vertical direction can be supported by the first supporting portions 21 respectively. Therefore, in the second step, even when the adhesive 24 is not completely cured, the tiles 17 can be stably fixed to the base surface 16s, and workability can be improved.

Furthermore, the first support portion 21 of the present embodiment is provided in a joint 18 (horizontal joint 18b) formed between the tiles 17, 17 adjacent to each other in the vertical direction. Thereby, in the second step, the plurality of tiles 17 can be stably supported by the first support portion 21 along the horizontal joints 18b. Further, the first support 21 can be configured as a vertical positioning of the tile 17 . Therefore, the renovation method of this embodiment can fix the tiles 17 to the base surface 16s in a short period of time without requiring the skill of the operator.

The distance D1 (shown in FIG. 2) between the pair of first support portions 21, 21 is set smaller than the vertical length L1 (shown in FIG. 2) of the tile 17 to the extent that the tile 17 can be press-fitted. In this case, the tile 17 can be vertically sandwiched and held between the pair of first support portions 21 , 21 . Thereby, in the second step, the tile 17 can be stably fixed to the base surface 16s.

In the reforming method of the present embodiment, the adhesive 24 is cured to form the outer wall structure 1 shown in FIGS. 1 and 2, and the outer wall can be reformed. As described above, in the reforming method of the present embodiment, since the existing outer wall 5 (first portion 3) is not removed as in Patent Document 1, the existing outer wall 5 (first portion 3) is maintained. can be reformed. Therefore, the remodeling method of the present embodiment does not degrade the functions of the existing outer wall 5 (first portion 3), so residents can remodel the building 2 while living there.

Further, in the reforming method of the present embodiment, the heat insulation performance of the face material 16 can be added to the heat insulation performance of the existing outer wall 5 (first portion 3). Therefore, the reforming method of this embodiment can effectively improve the heat insulation performance of the outer wall. Furthermore, in the renovation method of the present embodiment, the face material 16 of the second portion 4 effectively insulates the outside of the building of the first portion 3, so that the increase in relative humidity inside the first portion 3 can be prevented. can be prevented. As a result, in the renovation method of this embodiment, for example, in order to prevent dew condensation inside the outer wall, it is not necessary to replace the moisture-proof dense layer 15 (shown in FIG. 1) with a higher performance one, so the construction period is reduced. can be shortened and the construction cost can be reduced.

FIG. 5 is a perspective view illustrating an example of the process of filling the joint material 27. As shown in FIG. In FIG. 5, the joint material 27 is shown in color. In the renovation method of the present embodiment, the joints 18 (the vertical joints 18a and the horizontal joints 18b) of the tiles 17 may be filled with the joint material 27 after the second step. The joint material 27 is as described above. Thus, the remodeling method of the present embodiment can remodel the outer wall 5 to effectively prevent the peeling of the tiles 17 and the deterioration of the adhesive 24 due to ultraviolet rays.

In the embodiments so far, an aspect in which only the first support portion 21 is included in the support portion 20 has been exemplified, but the present invention is not limited to such an aspect. The support 20 may further include a second support. FIG. 6 is a perspective view showing an example of the outer wall structure of another embodiment of the present invention. In this embodiment, the same reference numerals are assigned to the same configurations as in the previous embodiments, and the description may be omitted.

The second support portion 22 protrudes from the base surface 16s and extends in the vertical direction. The second support portion 22 of this embodiment is fixed to the face member 16 . It should be noted that the second support portion 22 may be formed integrally with the face member 16 in the same manner as the first support portion 21 .

The second support portion 22 of this embodiment protrudes from the base surface 16 s of the face member 16 when fixed to the face member 16 . Like the first support portion 21, the second support portion 22 includes a pair of side surface portions 22a, 22a and an outer surface portion 22b. The pair of side portions 22a, 22a extend from the base surface 16s of the panel 16 to the outside of the building. The outer surface portion 22b extends horizontally between the outer ends of the pair of side surface portions 22a, 22a on the outside of the building. The pair of side surface portions 22a, 22a and outer surface portion 22b form the second support portion 22 with a substantially rectangular cross section.

The second support portion 22 is in contact with part of the tile 17 . In this embodiment, the side portion 17c of the tile 17 is in contact with the side portion 22a of the second support portion 22. As shown in FIG. As a result, the second support section 22 can position the tiles 17 in the horizontal direction, so that the arrangement of the tiles 17 can be maintained for a long period of time.

It is desirable that a plurality of second support portions 22 be provided in the horizontal direction. As a result, the outer wall structure 1 of this embodiment can position the plurality of tiles 17 arranged in the horizontal direction, so that the arrangement of the tiles 17 can be maintained for a long period of time.

The second support portion 22 is preferably provided at a position corresponding to the joint 18 (vertical joint 18a) formed between the tiles 17, 17 adjacent in the horizontal direction. As a result, the second support portion 22 can position the plurality of tiles 17 along the vertical joints 18a, thereby maintaining the vertical joints 18a. Furthermore, the second support portion 22 can prevent the adhesive 24 (shown in FIG. 4) between the back portion 17b of the tile 17 and the base surface 16s of the panel 16 from being exposed. Degradation of the adhesive 24 due to ultraviolet rays can be prevented.

Similarly to the interval D1 between the first support portions 21, the interval D2 between the pair of second support portions 22, 22 adjacent in the horizontal direction is the same as the horizontal length L2 of the tiles 17 fixed to the base surface 16s. should preferably be set to On the other hand, the interval D2 between the pair of second support portions 22, 22 may be set smaller than the horizontal length L2 of the tile 17 to the extent that the tile 17 can be press-fitted. Thereby, the pair of second support portions 22 can sandwich and hold the tile 17 from the horizontal direction.

The height H2 of the second support portion 22 from the base surface 16s is desirably set smaller than the thickness W1 of the tile 17 (shown in FIG. 2), similarly to the first support portion 21 . Also, the joints of the second portion 4 (the vertical joints 18a and the horizontal joints 18b) may be filled with a joint material 27 (shown in color in FIG. 5). The joint material 27 is as described above.

FIG. 7 is a perspective view illustrating an example of the third step of fixing the second support portion 22 to the face member 16. As shown in FIG. The second support portion 22 of this embodiment includes a base portion 25 and a convex portion 26 before being fixed to the face member 16 .

The base 25 is formed in a plate shape and extends in the vertical direction. The outer surface of the base portion 25 on the outside of the building constitutes the outer surface portion 22b of the second support portion 22 (shown in FIG. 6). The base 25 can be made of, for example, wood material, resin, metal such as steel, or the like.

The convex portion 26 protrudes from the base portion 25 toward one side in the thickness direction of the base portion 25 . At least one protrusion 26 is provided, and a plurality of protrusions 26 are provided in this embodiment. The convex portion 26 can be made of the same heat insulating material as the surface material 16 and the first support portion 21, for example, but is not limited to such an embodiment. It may be integrally formed.

The interval D3 between the convex portions 26 adjacent in the vertical direction can be set as appropriate. The interval D3 in this embodiment is formed to be the same as or slightly larger than the vertical width W2 of the outer surface portion 21b of the first support portion 21 . As a result, the second support portion 22 arranges the first support portion 21 between the pair of protrusions 26, 26 with the protrusion 26 facing the face material 16 side, and the inner surface 25i of the base portion 25. , the outer surface portion 21 b of the first support portion 21 . The second support portion 22 is fixed to the face member 16 using fasteners 28 such as screws. The fixture 28 preferably has a length that penetrates the base 25 and the face member 16 and reaches the exterior member 6 . Thereby, the fixture 28 can be fixed to the exterior material 6 with the second support portion 22 and the face material 16 integrated.

Next, a reforming method according to another embodiment of the present invention will be described. In the reforming method of this embodiment, first, as shown in FIG. 3, a face material 16 made of a heat insulating material is fixed to the outside of the exterior material 6 (first step). The procedure of the first step is as described above.

Next, in the reforming method of this embodiment, prior to the second step of fixing the tiles 17 to the outside of the face member 16, the second support portions 22 are fixed to the face member 16 (third step). In addition, when the second support portion 22 is formed integrally with the face member 16, the third step is omitted.

As shown in FIG. 7, in the third step, first, the first support portion 21 is placed between the pair of protrusions 26, 26 with the protrusion 26 of the second support portion 22 directed toward the face member 16 side. to place. Thereby, the inner surface 25i of the base portion 25 can be brought into contact with the outer surface portion 21b of the first support portion 21 . Next, in the third step, the second support portion 22 is fixed to the face member 16 with fasteners 28 such as screws. Thereby, in the third step, the second support portion 22 including the pair of side portions 22a, 22a and the outer surface portion 22b can be formed on the face member 16. As shown in FIG.

The fixture 28 of this embodiment has a length that penetrates the base 25 and the face member 16 and reaches the exterior member 6 . Thereby, in the third step, the second support portion 22 and the face member 16 can be integrally fixed to the exterior member 6 . Note that an adhesive (not shown) may be used to fix the second support portion 22 and the face member 16 together.

In the third step, a plurality of second support portions 22 are provided in the horizontal direction. In the third step of this embodiment, the second support portions 22 are fixed at positions corresponding to the vertical joints 18a (shown in FIG. 6) formed between the tiles 17, 17 adjacent in the horizontal direction. Thereby, in the third step, the first support portion 21 and the second support portion 22 can be formed at positions corresponding to the vertical joint 18a and the horizontal joint 18b (shown in FIG. 6).

Next, in the reforming method of this embodiment, the tiles 17 are fixed to the outside of the face material 16 (second step). In the second step, the adhesive 24 (shown in FIG. 4) is applied to the base surface 16s of the face member 16, as in the previous embodiments. In the second step, the adhesive 24 may also be applied to the side surface portion 21 a of the first support portion 21 and the side surface portion 22 a of the second support portion 22 .

Next, in the second step, the tiles 17 are fixed to the base surface 16s of the face member 16 to which the adhesive 24 (shown in FIG. 4) is applied. In the second step of this embodiment, the tiles 17 are fixed to the base surface 16s so that a portion of the tiles 17 are in contact with the support portion 20. As shown in FIG.

In the second step of this embodiment, the tile 17 is moved so that the side portion 17c (shown in FIG. 6) of the tile 17 contacts the side portion 21a of the first support portion 21 and the side portion 22a of the second support portion 22. is fixed to the base surface 16s. Thus, in the second step, the tile 17 can be fixed to the base surface 16s while part of the load of the tile 17 is supported by the first support portion 21, as shown in FIG.

As shown in FIG. 7, the first support portion 21 and the second support portion 22 are provided at positions corresponding to the vertical joints 18a and the horizontal joints 18b shown in FIG. and horizontal positioning. Therefore, in the remodeling method of this embodiment, the tiles 17 can be easily positioned by bringing a portion of the tiles 17 into contact with the first and second support portions 21 and 22 . Thus, in the reforming method of the embodiment, the tiles 17 can be fixed to the base surface 16s in a short period of time without requiring the skill of the operator.

The interval D1 (shown in FIG. 2) between the pair of first support portions 21 and 21 and the interval D2 (shown in FIG. 6) between the pair of second support portions 22 and 22 are set to such an extent that the tile 17 can be press-fitted. If so, the tiles 17 can be held vertically and horizontally. Thereby, in the second step, the tile 17 can be stably fixed to the base surface 16s.

In the remodeling method of this embodiment, the joints 18 (the vertical joints 18a and the horizontal joints 18b) of the tiles 17 may be filled with a joint material 27 (not shown in FIG. 5) after the second step. The joint material 27 is as described above.

The supporting part 20 of the previous embodiments includes a mode in which only the first supporting part 21 shown in FIG. 4 is included, and a mode in which the first supporting part 21 and the second supporting part 22 shown in FIG. 7 are included. Although illustrated, it is not limited to such embodiments. The support portion 20 may include, for example, only the second support portion 22 .

Although the particularly preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the illustrated embodiments and can be modified in various ways.

The outer wall of a building with cladding was renovated (Example). In the embodiment, a first step of fixing a face material made of heat insulating material to the outside of the exterior material and a second step of fixing a tile to the outside of the face material are carried out to form an outer wall having the structure shown in FIG. was reformed to In the second step of the example, the tile was adhered to the insulation substrate so that a portion of the tile was in contact with the support.

For comparison, exterior wall renovation (Comparative Example 1) in which only painting was applied to the outside of the exterior material, and exterior wall renovation (Comparative Example 2) in which only tiles were fixed to the outside of the exterior material were carried out. Then, the relative humidity and temperature on the back surface of the exterior material provided inside the outer wall were measured for the outer wall before reforming and the outer wall reformed in Example, Comparative Example 1, and Comparative Example 2, respectively. Relative humidity and temperature were measured in 4 and 6 areas of the energy saving standard area division. Common specifications are as follows.

Indoors:
Temperature: 10°C
Humidity: 70% RH
Outside air in 4 regions: -1.5°C
Outside air in 6 regions: 0.9°C
External wall before renovation (part 1):
Exterior material (slate)
Thickness: 6mm
Thermal conductivity: 1.5W/mK
Moisture conductivity: 1.62ng/msPa
Breathable layer:
Thickness: 10mm
Thermal conductivity: 0.09W/mK
Insulation (glass wool 16K):
Thickness: 25mm
Thermal conductivity: 0.045W/mK
Moisture conductivity: 170ng/msPa
Moisture-proof dense layer (polyethylene sheet):
Thickness: 18 μm
Moisture conductivity: 0.000947 ng/msPa
Interior material (plywood):
Thickness: 12mm
Thermal conductivity: 0.16W/mK
Moisture conductivity: 1.11 ng/msPa
Example face material (second part):
Thickness: 50mm
Thermal conductivity: 0.038W/mK
Moisture conductivity: 0.79114ng/msPa
Table 1 shows the test results.

As a result of the test, it was found that the example can be renovated while maintaining the existing outer wall, so that the residents can renovate while living in the building. In addition, the outer wall of the example was able to raise the temperature of the back surface of the exterior material compared to the outer wall before the renovation. Therefore, the example was able to improve the heat insulation performance of the outer wall.

Compared with Comparative Examples 1 and 2, in the example, the relative humidity on the back surface of the exterior material could be lowered, and dew condensation on the back surface of the exterior material could be prevented.

Further, since the tiles can be affixed to the underlying surface such that a portion of the tile is in contact with the support, the embodiment can provide the support by using the support for positioning and supporting the tile. The tiles could be fixed to the base surface in a short period of time without requiring the operator's skill as compared with Comparative Example 2 in which the tiles were not applied.

1 Outer wall structure 7 Exterior material 16 Face material 17 Tile 20 Support part

Claims (5)

A method for renovating an outer wall of a building having an exterior material,
A first step of fixing a face material made of a heat insulating material to the outside of the exterior material;
a second step of adhering tiles to the outside of said facing;
The face material has a support portion formed on a base surface facing the outside of the building,
The support includes a second support that protrudes from the base surface and extends in a vertical direction,
Prior to the second step, further comprising a third step of fixing the second support portion to the face material,
In the second step, the tile is fixed to the base surface so that a portion of the tile is in contact with the support.
Exterior renovation method. 2. The method of remodeling an outer wall according to claim 1, wherein the supporting part includes a first supporting part that protrudes from the base surface and extends horizontally. 3. The method of remodeling an outer wall according to claim 2, wherein a plurality of said first support portions are provided in the vertical direction. 4. The method of remodeling an outer wall according to claim 2 or 3, wherein in said second step, said tiles are fixed such that a portion of the load thereof is supported by said first support portion. 5. The method of remodeling an outer wall according to claim 1 , wherein, in said second step, said tiles are fixed so that a portion of said tiles is in contact with said second support portion .

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