JP2020169539A - Waterproof construction method - Google Patents

Abstract

To reduce construction period in constructing a new waterproof layer leaving the existing waterproof layer.SOLUTION: The waterproof panel 1 integrating a thermal insulation material 10 and a waterproof sheet 11 is used, and a plurality of waterproof panels 1, 1 are arranged in line on the existing waterproof layer 101 and fixed to a roof 100. A projection part of the waterproof sheet 11 is joined to other waterproof sheet 11 adjacent each other.SELECTED DRAWING: Figure 8

Description

The present invention relates to, for example, a waterproof construction method applicable to a sloped roof.

Conventionally, as a sloped roof, a folded plate roof or a slate roof formed by laying corrugated plate-shaped metal plates side by side is known (see, for example, Patent Documents 1 and 2).

In Patent Document 1, a plate-shaped heat insulating member is laid on a waterproof base constituting a metal roof such as a folded plate roof, a fixing disk is placed on the heat insulating member, and fixing screws are used. The fixing disc is fixed to the waterproof base. A hot melt adhesive layer is provided on the upper surface of the fixing disc. A waterproof sheet made of synthetic resin is laid on the heat insulating member and the fixing disc, and the waterproof sheet is adhered and fixed to the hot melt adhesive layer of the fixing disc.

In Patent Document 2, a plurality of heat insulating panels having a heat insulating material interposed between metal outer skins are arranged side by side so as to be adjacent to each other, and a waterproof sheet is laid on these heat insulating panels. A resin layer is formed on the metal outer skin. The waterproof sheet is heat-sealed to the resin layer of the metal outer skin.

Japanese Unexamined Patent Publication No. 2016-75109 Japanese Patent No. 4685592

By the way, when repairing using a waterproof sheet, the construction is often carried out while leaving the existing waterproof layer. It is indispensable to install an insulating layer such as a heat insulating material or a cushioning foam between the existing waterproof layer and the newly installed waterproof sheet.

When installing a heat insulating material as an insulating layer between the existing waterproof layer and the new waterproof sheet, after placing the heat insulating material on the existing waterproof layer, stop the heat insulating material so that the heat insulating material is not blown away by the wind. After that, after arranging the waterproof sheet so as to cover the heat insulating material, it is necessary to carry out the construction through a plurality of steps such as fixing the waterproof sheet so that the waterproof sheet is not blown by the wind. For this reason, there is a problem that the construction takes time and the construction period becomes long.

The present invention has been made in view of this point, and an object of the present invention is to make it possible to shorten the construction period when a new waterproof layer is installed while leaving the existing waterproof layer.

In order to achieve the above object, in the present invention, a waterproof panel in which a heat insulating material and a waterproof sheet are integrated in advance is used.

The first invention is a waterproof construction method in which a waterproof layer is newly installed on an existing waterproof layer of a roof, a heat insulating material formed in a rectangular plate shape and a waterproof sheet integrated by adhesion on the upper surface of the heat insulating material. The waterproof panel provided with the above is prepared, the waterproof sheet is provided so that the waterproof sheet projects from two consecutive sides of the heat insulating material, and the plurality of waterproof panels are provided so that the waterproof sheet faces up. The fixing process of arranging them side by side on the existing waterproof layer and fixing them to the roof, and the overhanging portion of the waterproof sheet of the waterproof panel are adhered to the waterproof sheet of another waterproof panel arranged next to the waterproof panel. It is characterized by having a bonding process for performing.

According to this configuration, by arranging the waterproof panels side by side on the existing waterproof layer of the roof so that the waterproof sheet is on top, a heat insulating material is provided as an insulating layer between the existing waterproof layer and the newly installed waterproof sheet. Will be possible. At this time, since the heat insulating material and the waterproof sheet are integrated in advance, the heat insulating material and the waterproof sheet are laid at the same time, and the construction time is shortened. Further, by fixing the waterproof panel to the roof, the heat insulating material and the waterproof sheet are fixed at the same time, which also shortens the construction time. Then, by adhering the overhanging portion of the waterproof sheet to the waterproof sheet of another waterproof panel arranged next to each other, the waterproofness between the waterproof panels is ensured.

The second invention is characterized in that the waterproof sheet of the waterproof panel is non-adhesive to a portion of the upper surface of the heat insulating material in the vicinity of the two sides.

According to this configuration, the waterproof sheet and the portions of the upper surface of the heat insulating material in the vicinity of the two sides are not adhered to each other. Therefore, for example, in order to fix the heat insulating material to the roof between the waterproof sheet and the upper surface of the heat insulating material. It is possible to arrange the members of the above and to fix the heat insulating material to the roof by the members. After that, the overhanging portion of the waterproof sheet is adhered to the waterproof sheet of another waterproof panel arranged next to each other, so that the waterproofness between the waterproof panels is ensured.

In the third invention, a heat insulating material fixing steel plate is arranged between the waterproof sheet and the vicinity of the two sides on the upper surface of the heat insulating material, and the heat insulating material is provided by the heat insulating material fixing steel plate. It is fastened to the roof, and the waterproof sheet is non-adhesive to the heat insulating material fixing steel plate.

According to this configuration, the heat insulating material can be fixed to the roof by the fixing steel plate arranged between the waterproof sheet and the upper surface of the heat insulating material. Since the waterproof sheet is not adhered to the fixed steel plate, for example, it becomes difficult for wind pressure to act directly on the fixed steel plate.

In the fourth invention, a heat insulating material fixing steel plate is arranged between the waterproof sheet and the vicinity of the two sides on the upper surface of the heat insulating material, and the heat insulating material is provided by the heat insulating material fixing steel plate. It is fastened to the roof, and the waterproof sheet is adhered to the heat insulating material fixing steel plate.

According to this configuration, the heat insulating material can be fixed to the roof by the fixing steel plate arranged between the waterproof sheet and the upper surface of the heat insulating material. Since the waterproof sheet is adhered to the fixing steel plate, a part of the waterproof sheet can be fixed by using the fixing steel plate.

A fifth aspect of the present invention is characterized in that the waterproof sheet is a sheet made of vinyl chloride, and the heat insulating material fixing steel sheet is a vinyl chloride coated steel sheet whose upper surface is coated with vinyl chloride.

According to this configuration, the waterproof sheet and the fixing steel plate can be firmly bonded by heat welding or solvent welding.

In the sixth invention, the waterproof panel fixing steel plate is arranged on the waterproof sheet, the waterproof panel is fixed to the roof by the waterproof panel fixing steel plate, and the waterproof panel fixing steel plate is covered. A waterproof covering material is arranged on the roof, and the waterproof covering material is adhered to the waterproof sheet.

According to this configuration, the fixing strength of the waterproof panel is further increased, and it is possible to secure water stopping property.

According to the first invention, a waterproof panel in which a heat insulating material and a waterproof sheet are integrated is arranged side by side on an existing waterproof layer and fixed to the roof, and another waterproof portion in which the overhanging portion of the waterproof sheet is lined up next to each other. Since it is adhered to the waterproof sheet of the panel, a new waterproof layer can be newly installed on the existing waterproof layer in a short period of time.

According to the second invention, since the waterproof sheet of the waterproof panel is non-adhesive to the vicinity of the two sides on the upper surface of the heat insulating material, the heat insulating material is provided between the waterproof sheet and the upper surface of the heat insulating material. The heat insulating material can be fixed to the roof by arranging a member for fixing to the roof.

According to the third invention, the heat insulating material is fixed to the roof by a fixing steel plate arranged between the waterproof sheet and the vicinity of two sides on the upper surface of the heat insulating material, and the waterproof sheet is attached to the fixing steel plate. Since it is prevented from adhering, it becomes difficult for the wind pressure to act directly on the fixed steel plate, and the fixing force of the fixed steel plate can be maintained for a long period of time.

According to the fourth invention, the heat insulating material is fixed to the roof by a fixing steel plate arranged between the waterproof sheet and the vicinity of two sides on the upper surface of the heat insulating material, and the waterproof sheet is attached to the fixing steel plate. Since it is bonded, the position of the waterproof sheet can be fixed by using the fixing steel plate.

According to the fifth invention, since the waterproof sheet is made of vinyl chloride and the fixing steel plate is a vinyl chloride coated steel plate, it can be easily and firmly adhered.

According to the sixth invention, after the waterproof panel is fixed to the roof, a waterproof covering material can be arranged so as to cover the fixing steel plate and adhered to the waterproof sheet, so that the waterproof state is maintained. The fixing strength of the waterproof panel can be increased.

FIG. 5 is a perspective view of the first waterproof panel used in the waterproof construction method according to the first embodiment of the present invention as viewed from above. It is a top view of the 1st waterproof panel. It is a side view of the 1st waterproof panel. It is an end view of the 1st waterproof panel. It is a top view of the 2nd waterproof panel. It is a top view which shows the state which the 1st waterproof panel and the 2nd waterproof panel are arranged side by side on the existing waterproof layer of a roof. It is a perspective view which looked at the 1st waterproof panel after construction from above. FIG. 7 is a cross-sectional view taken along the line VIII-VIII of FIG. FIG. 8 is a view corresponding to FIG. 8 according to the second embodiment. FIG. 7 is a view corresponding to FIG. 7 according to the third embodiment. FIG. 8 is a view corresponding to FIG. 8 according to the third embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its application or its use.

(Embodiment 1)
FIG. 1 is a perspective view of the first waterproof panel 1 used in the waterproof construction method according to the first embodiment of the present invention as viewed from above. As shown in FIG. 8, the first waterproof panel 1 is a member used in the waterproof construction method in which the waterproof layer 102 is newly installed on the existing waterproof layer 101 of the roof 100. The roof 100 is a sloped roof whose flat portion is inclined in one direction. The direction of the gradient can be set arbitrarily. The roof 100 includes a synthetic slab deck plate 103 and an existing waterproof layer 101 provided on the synthetic slab deck plate 103. The synthetic slab deck plate 103 is formed by bending, for example, a metal plate having a plate thickness of about 1.2 mm. A waterproof base is formed by the synthetic slab deck plate 103. The existing waterproof layer 101 is made of a conventionally known plate-shaped member, and a plurality of the existing waterproof layers 101 are arranged side by side on the upper surface of the synthetic slab deck plate 103 so as to be adjacent to each other.

In the first embodiment, the first waterproof panel 1 shown in FIGS. 2 to 4 and the second waterproof panel 2 shown in FIG. 5 are used. Since the first waterproof panel 1 and the second waterproof panel 2 have the same structure and differ only in shape, the structure of the first waterproof panel 1 will be described in detail below.

The first waterproof panel 1 includes a heat insulating material 10 formed in a rectangular plate shape, and a waterproof sheet 11 integrated with the upper surface of the heat insulating material 10 by adhesion. Adhesion between the heat insulating material 10 and the waterproof sheet 11 is possible with a conventionally known adhesive or the like. The thickness of the heat insulating material 10 is not particularly limited, but can be set to, for example, 5 mm or more and 50 mm or less. Further, the width and length of the heat insulating material 10 can be set to any dimension of several tens of cm or more.

The heat insulating material 10 may be rectangular or square. The four sides (first side A1, second side A2, third side A3, fourth side A4) constituting the edge of the heat insulating material 10 extend linearly, and two continuous sides (first side) are formed. A1 and the second side A2, the second side A2 and the third side A3, the third side A3 and the fourth side A4, and the fourth side A4 and the first side A1) intersect each other so as to form a substantially perpendicular angle to each other.

The heat insulating material 10 is made of a resin foam. Examples of the resin foam include extruded polystyrene foam (XPS), bead polystyrene foam (EPS), phenol foam, rigid polyurethane foam, and expanded polyethylene. When the heat insulating material 10 is fastened and fixed to the roof 100, a rigid polyurethane foam having high weather resistance and heat resistance is preferable, and a so-called polyisocyanurate foam containing an isocyanurate ring having high flame retardancy is preferable. When the heat insulating material 10 is adhesively fixed, polyethylene foam having a relatively low hardness is preferable in order to absorb the unevenness of the base.

The waterproof sheet 11 can be made of, for example, a soft vinyl chloride resin or a polyolefin resin. The thickness of the waterproof sheet 11 is not particularly limited, but is thinner than that of the heat insulating material 10, and can be set to, for example, about 1 mm to 3 mm.

The waterproof sheet 11 is also rectangular. The four sides (first side B1, second side B2, third side B3, fourth side B4) constituting the edge of the waterproof sheet 11 extend linearly, and two continuous sides (first side) are formed. B1 and the second side B2, the second side B2 and the third side B3, the third side B3 and the fourth side B4, and the fourth side B4 and the first side B1) intersect each other so as to form a substantially perpendicular angle to each other.

The waterproof sheet 11 is provided so as to project from two consecutive sides of the heat insulating material 10. That is, the first side B1 and the second side B2 of the waterproof sheet 11 are longer than the first side A1 and the second side A2 of the heat insulating material 10, respectively, and the first side A1 and the second side of the heat insulating material 10 are longer. It is positioned outward from the two sides A2. The amount of protrusion of the waterproof sheet 11, that is, the horizontal distance between the first side B1 of the waterproof sheet 11 and the first side A1 of the heat insulating material 10, the second side B2 of the waterproof sheet 11 and the second side of the heat insulating material 10. The horizontal distance from A2 can be set to, for example, about 50 mm, but is not limited to this, and can be set to any dimension, for example, between 30 mm and 100 mm. The first side B1 of the waterproof sheet 11 and the first side A1 of the heat insulating material 10 are parallel to each other, and the second side B2 of the waterproof sheet 11 and the second side A2 of the heat insulating material 10 are parallel to each other.

On the other hand, the third side B3 and the fourth side B4 of the waterproof sheet 11 coincide with the third side A3 and the fourth side A4 of the heat insulating material 10, respectively, and the third side A3 and the fourth side of the heat insulating material 10 respectively. The third side B3 and the fourth side B4 of the waterproof sheet 11 are located on the A4, respectively.

In this embodiment, the first side B1 and the second side B2 of the tarpaulin 11 are formed so as to project, but the present invention is not limited to this, and the second side B2 and the third side B3 of the tarpaulin 11 project. The third side B3 and the fourth side B4 of the tarpaulin 11 may be formed so as to project, and the fourth side B1 and the first side B1 of the tarpaulin 11 may be formed so as to project. It may be formed so as to overhang.

The waterproof sheet 11 of the first waterproof panel 1 is non-adhesive to the portions near the first side A1 and the second side A2 on the upper surface of the heat insulating material 10. The area shown by the diagonal line in FIG. 2 is the area where the waterproof sheet 11 and the heat insulating material 10 are adhered to each other, and the area other than the area shown by the diagonal line in the range where the waterproof sheet 11 and the heat insulating material 10 overlap is the waterproof sheet. 11 and the heat insulating material 10 are not adhered to each other. A predetermined area separated from the first side A1 of the heat insulating material 10 to the third side A3 side and a predetermined area separated from the second side A2 of the heat insulating material 10 to the fourth side A4 side adhere to the waterproof sheet 11. Since this is not done, the waterproof sheet 11 can be turned over to the third side B3 side and also to the fourth side B4 side. The non-bonded area of the waterproof sheet 11 is set narrower than the bonded area, and the adhesive strength of the waterproof sheet 11 to the heat insulating material 10 is sufficiently secured.

Similar to the first waterproof panel 1, the second waterproof panel 2 shown in FIG. 5 includes a heat insulating material 20 and a waterproof sheet 21, so that the waterproof sheet 21 projects from two consecutive sides of the heat insulating material 20. It is provided. Further, the region shown by the diagonal line in FIG. 5 is the region where the waterproof sheet 21 and the heat insulating material 20 are adhered to each other, and the portion other than the region shown by the diagonal line in the range where the waterproof sheet 21 and the heat insulating material 20 overlap is the region. The waterproof sheet 21 and the heat insulating material 20 are not adhered to each other.

Next, the waterproof construction method according to the embodiment of the present invention will be described. FIG. 6 describes a process of arranging a plurality of first waterproof panels 1 and second waterproof panels 2 side by side on the existing waterproof layer 101 so that the respective waterproof sheets 11 and 21 are on top and fixing them to the roof 100. It is a figure to do. In this example, the first waterproof panel 1 and the second waterproof panel 2 having a dimension shorter in one direction than the first waterproof panel 1 are used in combination. As a result, for example, in the C portion, the waterproof sheet 11 of the first waterproof panel 1 and the waterproof sheet 21 of the second waterproof panel 2 are overlapped, and in the D portion, three first waterproof panels are overlapped. The waterproof sheets 11 of 1 will overlap each other. That is, by combining the first waterproof panel 1 and the second waterproof panel 2 having different dimensions, only three waterproof sheets 11 and 21 can be overlapped at most. If necessary, only the first waterproof panel 1 may be used, or only the second waterproof panel 2 may be used.

As shown in FIGS. 7 and 8, a plurality of heat insulating material fixing steel plates 200 are arranged between the waterproof sheet 11 and the vicinity portion of the first side A1 on the upper surface of the heat insulating material 10, and the heat insulating material is fixed. The heat insulating material 10 is fixed to the roof 100 by the steel plate 200. As the heat insulating material fixing steel plate 200, for example, a disc-shaped disc steel plate can be used. The heat insulating material fixing steel plate 200 can be arranged at a non-adhesive portion between the waterproof sheet 11 and the upper surface of the heat insulating material 10, and the convex shape of the synthetic slab deck plate 10 is directly below the heat insulating material fixing steel plate 200. The arrangement position of the heat insulating material fixing steel plate 200 is set so that the portion is located. The heat insulating material fixing steel plate 200 is fastened and fixed to the synthetic slab deck plate 103 by fixing screws 201. The fixing screw 201 can be composed of, for example, a self-drilling screw or the like, and is screwed into the convex portion of the synthetic slab deck plate 103 through the heat insulating material fixing steel plate 200 and the heat insulating material 10 from above. By screwing the fixing screw 201 into the convex portion of the synthetic slab deck plate 103, the heat insulating material fixing steel plate 200 is pressed against the heat insulating material 10, and the heat insulating material 10 to which the heat insulating material fixing steel plate 200 is pressed is synthetic. It is pressed and fixed to the convex portion of the slab deck plate 10. Further, a plurality of heat insulating material fixing steel plates 200 are arranged between the waterproof sheet 11 and the vicinity portion of the second side A2 on the upper surface of the heat insulating material 10, and the heat insulating material 10 is provided by the heat insulating material fixing steel plate 200. It can also be fixed to the roof 100. The waterproof sheet 11 is non-adhesive to the heat insulating material fixing steel plate 200. The above is the fixing process of the present invention.

After the fixing step, the overhanging portion of the waterproof sheet 11 of the first waterproof panel 1 is placed next to the waterproof panel 1 by another waterproof sheet 11 of the first waterproof panel 1 (or the waterproof sheet of the second waterproof panel 2). A bonding step of bonding to 21) is performed. As shown in FIG. 8, the overhanging portion of the waterproof sheet 11 of the first waterproof panel 1 located on the left side is overlapped with the upper surface of the waterproof sheet 11 of the first waterproof panel 1 arranged to the right of the first waterproof panel 1. Then, the waterproof sheet 11 on the left side is fused to the waterproof sheet 11 on the right side by heat or by a solvent. As the instrument used at the time of welding, a conventionally known instrument can be used, and as the solvent used at the time of welding, a conventionally known solvent can be used.

(Action and effect of the embodiment)
As described above, according to the waterproof construction method according to the first embodiment, the existing waterproof layer 101 of the roof 100 has the first waterproof panel 1 and the second waterproof panel 2 with the waterproof sheets 11 and 21 facing up. By arranging them side by side on the top, it becomes possible to provide the heat insulating materials 10 and 20 as an insulating layer between the existing waterproof layer 100 and the newly installed waterproof sheets 11 and 21. At this time, since the heat insulating materials 10 and 20 and the waterproof sheets 11 and 21 are integrated in advance, the heat insulating materials 10 and 20 and the waterproof sheets 11 and 21 are laid at the same time, and the construction time Is shortened. Further, by fixing the first waterproof panel 1 and the second waterproof panel 2 to the roof 100, the heat insulating materials 10 and 20 are fixed and the waterproof sheets 11 and 21 are fixed at the same time. Time is shortened. Then, by adhering the overhanging portion of the waterproof sheet 11 of the first waterproof panel 1 to the waterproof sheet 11 of another waterproof panel 1 arranged next to each other, the waterproofness between the waterproof panels 1 and 1 is ensured. Therefore, the construction period can be shortened when the waterproof layer is newly installed by the waterproof sheets 11 and 21 while leaving the existing waterproof layer 101.

Further, since the waterproof sheet 11 of the first waterproof panel 1 and the portions near the first side A1 and the second side A2 on the upper surface of the heat insulating material 10 are not adhered to each other, for example, the waterproof sheet 11 and the upper surface of the heat insulating material 10 are not adhered to each other. A heat insulating material fixing steel plate 200 for fixing the heat insulating material 10 to the roof 100 is arranged between the two, and the heat insulating material 10 is fixed to the roof 100 by the heat insulating material fixing steel plate 200. it can.

Further, since the waterproof sheet 11 of the first waterproof panel 1 is not adhered to the heat insulating material fixing steel plate 200, for example, it becomes difficult for wind pressure to act directly on the heat insulating material fixing steel plate 200, and heat insulation is provided. The fixing force of the material fixing steel plate 200 can be maintained for a long period of time.

(Embodiment 2)
FIG. 9 relates to the second embodiment of the present invention, and the second embodiment is different from the first embodiment in that the waterproof sheet 11 is adhered to the heat insulating material fixing steel plate 200, and other parts thereof. Is the same as that of the first embodiment. Therefore, the same parts as those of the first embodiment are designated by the same reference numerals, the description thereof will be omitted, and the different parts will be described in detail.

The heat insulating material fixing steel sheet 200 is made of a vinyl chloride-coated steel sheet whose upper surface is coated with vinyl chloride. That is, the heat insulating material fixing steel plate 200 is composed of a disc member 200a made of a steel plate and a vinyl chloride layer 200b covering the upper surface of the disc member 200a, and the disc member 200a and the vinyl chloride layer 200b are integrated. It has been transformed.

After fixing the heat insulating material 10 to the roof 100 with the heat insulating material fixing steel plate 200, the vinyl chloride layer 200b of the heat insulating material fixing steel plate 200 and the waterproof sheet 11 are fused or welded to obtain the heat insulating material fixing steel plate 200. The waterproof sheet 11 is integrated. As a result, a part of the waterproof sheet 11 can be fixed by using the heat insulating material fixing steel plate 200.

Also in the second embodiment, as in the first embodiment, the construction period can be shortened when the waterproof layer is newly installed while the existing waterproof layer 101 is left.

(Embodiment 3)
10 and 11 relate to the third embodiment of the present invention. In the third embodiment, the waterproof panel fixing steel plate 250 is arranged on the waterproof sheet 11, and the waterproof panel is provided by the waterproof panel fixing steel plate 250. 1 is fixed to the roof 100, the waterproof covering material 300 is arranged so as to cover the waterproof panel fixing steel plate 250, and the waterproof covering material 300 is adhered to the waterproof sheet 11. Since they are different and the other parts are the same as those in the first embodiment, the same parts as those in the first embodiment are designated by the same reference numerals, the description thereof will be omitted, and the different parts will be described in detail.

The waterproof panel fixing steel plate 250 is made of a vinyl chloride-coated steel plate as in the heat insulating material fixing steel plate 200 of the second embodiment, and is a disk member 250a made of a steel plate and vinyl chloride covering the upper surface of the disk member 250a. It includes a layer 250b.

The waterproof panel fixing steel plate 250 is placed on the waterproof panel 1 after the waterproof panel 1 is placed on the existing waterproof layer 101. Then, the waterproof panel fixing steel plate 250 is fastened and fixed to the convex portion of the synthetic slab deck plate 103 by the fixing screw 251 composed of a self-drilling screw or the like. As a result, the waterproof panel 1 can be fixed to the roof 100.

After that, the waterproof covering material 300 is arranged so as to cover the steel plate 250 for fixing the waterproof panel, and is fused or welded to the waterproof sheet 11. As a result, water stopping property can be ensured.

Also in the third embodiment, similarly to the first embodiment, the construction period can be shortened when the waterproof layer is newly installed while the existing waterproof layer 101 is left.

The above embodiments are merely exemplary in all respects and should not be construed in a limited way. Furthermore, all modifications and modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

As described above, the waterproof construction method according to the present invention can be used, for example, when forming a waterproof layer on a sloped roof.

1 Waterproof panel 10 Insulation material 11 Waterproof sheet 100 Roof 101 Existing waterproof layer 200 Insulation material Fastening steel plate 250 Waterproof panel Fastening steel plate 300 Waterproof coating material

Claims (6)

In the waterproof construction method of newly installing a waterproof layer on the existing waterproof layer of the roof
A waterproof panel having a heat insulating material formed in a rectangular plate shape and a waterproof sheet integrated by adhesion on the upper surface of the heat insulating material is prepared, and the waterproof sheet projects from two consecutive sides of the heat insulating material. Provide the waterproof sheet so that
A fixing step of arranging a plurality of the waterproof panels side by side on the existing waterproof layer so that the waterproof sheet is on top and fixing them to the roof.
A waterproof construction method comprising a bonding step of adhering an overhanging portion of the waterproof sheet of the waterproof panel to the waterproof sheet of another waterproof panel arranged next to the waterproof panel. In the waterproof construction method according to claim 1,
A waterproof construction method, wherein the waterproof sheet of the waterproof panel is non-adhesive to a portion of the upper surface of the heat insulating material in the vicinity of the two sides. In the waterproof construction method according to claim 2,
A steel plate for fixing the heat insulating material is arranged between the waterproof sheet and the vicinity of the two sides on the upper surface of the heat insulating material, and the heat insulating material is fixed to the roof by the steel plate for fixing the heat insulating material.
A waterproof construction method, wherein the waterproof sheet is non-adhesive to the heat insulating material fixing steel plate. In the waterproof construction method according to claim 2,
A steel plate for fixing the heat insulating material is arranged between the waterproof sheet and the vicinity of the two sides on the upper surface of the heat insulating material, and the heat insulating material is fixed to the roof by the steel plate for fixing the heat insulating material.
A waterproof construction method characterized in that the waterproof sheet is adhered to the heat insulating material fixing steel plate. In the waterproof construction method according to claim 4,
The waterproof sheet is a sheet made of vinyl chloride.
The waterproof construction method, wherein the heat insulating material fixing steel sheet is a vinyl chloride-coated steel sheet whose upper surface is coated with vinyl chloride. In the waterproof construction method according to any one of claims 1 to 5,
A steel plate for fixing the waterproof panel is placed on the waterproof sheet, and the waterproof panel is fixed to the roof by the steel plate for fixing the waterproof panel.
A waterproof construction method characterized in that a waterproof coating material is arranged so as to cover the steel plate for fixing the waterproof panel, and the waterproof coating material is adhered to the waterproof sheet.

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