JP2021113474A - Heat-insulating and waterproof roof structure and construction method of the same - Google Patents

Abstract

To provide a heat-insulating and waterproof roof structure and a construction method of the same that can prevent deformation of and damage to the heat insulating material constituting the heat-insulating and waterproof roof, and can install a frame on the roof of the building while maintaining the heat-insulating performance and the waterproof performance.SOLUTION: A heat-insulating and waterproof roof structure 1 in which a frame 8 can be installed on the roof of a building has such a structure that a heat insulating material 3 is installed on an angular corrugated roof deck plate 2, and a waterproof layer 4 is provided on the heat insulating material 3. It includes a plurality of installation holes 5 penetrating the waterproof layer 4 and the heat insulating material 3 from the waterproof layer 4 to an upper surface 22 of an angular corrugated convex portion 21 of the roof deck plate 2, a plurality of panel support members 6 that are fitted into the respective installation holes 5 and fixed to the upper surface 22 of the angular corrugated convex portion 21, and a reinforcing panel 7 that is supported on the panel support members 6 and is adhesively fixed on the waterproof layer 4 to fix a base plate 81 of the base 8.SELECTED DRAWING: Figure 2

Description

The present invention relates to a heat-insulating and waterproof roof structure capable of installing a frame for supporting a structure such as a solar panel on the roof of a building to be heat-insulated and waterproofed, and a construction method thereof.

Insulation is laid on the roof of the building in cold regions. Conventionally, the heat insulating material is fixed by inserting a fastener into a flat washer and fastening it to a roof deck plate or the like on the roof. However, since the flat washers and fasteners have the property of easily transmitting heat, a heat bridge phenomenon occurs in which heat enters and exits from that part as if crossing a bridge, causing deterioration of heat insulation performance, dew condensation, and frost formation. ..

In response to the problem of deterioration of heat insulating performance due to such a heat bridge phenomenon, the applicant discloses a new heat insulating washer and a heat insulating structure using the new heat insulating washer in Japanese Patent No. 4280895, and patents the patent right. (Patent Document 1). Specifically, in the heat insulating structure, a washer fitting hole is formed on the surface of the heat insulating plate material, a hollow accommodating portion of the heat insulating washer is embedded in the washer fitting hole, and an insertion hole formed at the bottom of the hollow accommodating portion. It is said that the heat insulating plate material is fixed by inserting a fastener into the hollow accommodating portion, and the hollow accommodating portion is filled with the heat insulating material for filling so as to cover the head of the fastener.

In addition, a construction method using the heat insulating washer and the invention relating to the heat insulating structure using the same has been put into practical use as the HT method (registered trademark), has high waterproof performance and high heat insulating performance, and can withstand strong winds. It has become widely known in the industry for heat-insulating and waterproof roofs as an excellent construction method.

Japanese Patent No. 4208095

By the way, in recent years, attempts have been actively made to effectively utilize the space on the roof, such as installing solar panels in a wide space on the roof such as the roof of a building, and the structures such as the solar panels have been used. There is a need to install a pedestal for installation.

However, since the heat insulating material constituting the heat insulating structure is a relatively fragile material such as urethane foam or polystyrene foam, the weight of the structure such as a solar panel cannot be supported, and the heat insulating material is deformed by a strong wind such as a typhoon. There is a problem that damage occurs and heat insulation performance and waterproof performance are lost.

The present invention has been made to solve the above problems, and prevents deformation and damage of the heat insulating material constituting the heat insulating and waterproof roof, and maintains the heat insulating performance and the waterproof performance of the roof of the building. It is an object of the present invention to provide a heat insulating and waterproof roof structure on which a pedestal can be installed and a method of construction thereof.

The heat-insulating and waterproof roof structure according to the present invention is heat-insulating so that the pedestal can be installed on the roof of the building in order to solve the problem that the pedestal can be installed on the roof of the building on which the heat insulating material is installed. It is a waterproof roof structure, and has a structure in which a heat insulating material is installed on a square wave-shaped roof deck plate and a waterproof layer is provided on the heat insulating material. A plurality of installation holes that penetrate the waterproof layer and the heat insulating material up to the upper surface of the angular corrugated convex portion, and are fitted into each of these installation holes and fixed to the upper surface of the angular corrugated convex portion. It has a plurality of panel support members and a reinforcing panel that is supported on the panel support members and is adhesively fixed on the waterproof layer to fix the base plate of the gantry.

Further, as one aspect of the present invention, in order to solve the problem of firmly fixing the reinforcing panel without deteriorating the heat insulating performance and the waterproof performance, the reinforcing panel is provided with the angular corrugated convex portion of the roof deck plate. A plurality of washer fixing holes are formed at positions corresponding to the upper surface of the above and different from the installation holes at predetermined intervals, and the heat insulating washer moves the hollow accommodating portion from the washer fixing holes. It may be housed in a heat insulating material and fastened to a corrugated convex portion of the roof deck plate with a fastener.

Further, as one aspect of the present invention, in order to solve the problem of preventing deformation or damage of the heat insulating material, the panel support material may be made of a hard resin material harder than the heat insulating material.

The method for constructing a heat-insulating and waterproof roof structure according to the present invention is to solve the problem that a pedestal can be installed on the roof of a building in which a heat insulating material is installed. It is a method of constructing a heat-insulating waterproof roof structure capable of installing a pedestal on the roof of a building in which a heat insulating material and a waterproof layer are installed on the upper surface of the angular corrugated convex portion, from the waterproof layer to the roof. An installation hole opening step of opening a plurality of installation holes formed through the waterproof layer and the heat insulating material up to the upper surface of the angular corrugated convex portion of the deck plate, and a panel support material being fitted into each of the installation holes. The support material installation step of fixing to the upper surface of the angular corrugated convex portion and the reinforcing panel adhesive fixing of supporting the reinforcing panel for fixing the base plate of the gantry on the panel support material and adhering and fixing it on the waterproof layer. Has a process.

According to the present invention, it is possible to prevent deformation and damage of the heat insulating material constituting the heat insulating and waterproof roof, and to install the gantry on the roof of the building while maintaining the heat insulating performance and the waterproof performance.

It is a top view which shows one Embodiment of the heat insulation waterproof roof structure which concerns on this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a top view which shows the embodiment which is the heat insulation waterproof roof structure of another embodiment, and the number of panel support members is (a) four, and (b) ten. It is (a) front view and (b) plan view which shows the washer for heat insulation in this embodiment. It is sectional drawing which shows the state which fixed the base plate of the gantry to the reinforcing panel in this embodiment. It is a schematic diagram which shows the construction method of the heat insulation waterproof roof structure of this embodiment.

Hereinafter, a heat insulating and waterproof roof structure according to the present invention and an embodiment of this construction method will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the heat insulating and waterproof roof structure 1 of the present embodiment has a heat insulating material 3 installed on a square wave-shaped roof deck plate 2 and a waterproof layer provided on the heat insulating material 3. 4, a plurality of installation holes 5 penetrating the heat insulating material 3, a plurality of panel support members 6 fitted in each installation hole 5, and a gantry 8 supported on the panel support members 6. It has a reinforcing panel 7 that can fix the base plate 81. Hereinafter, each configuration will be described.

The heat insulating material 3 is a material having heat insulating performance, and a foam-based heat insulating material made of urethane, polystyrene, phenol resin or the like is exemplified. In the heat insulating material 3 of the present embodiment, two rigid urethane foams 31 made of urethane foam formed to a thickness of 25 mm are laminated one above the other, and a waterproof layer 32 made of an asphalt material is interposed between the rigid urethane foams 31. It has a structure that has high heat insulation performance as well as high waterproof performance.

The heat insulating material 3 is not limited to a multi-layer structure composed of a rigid urethane foam 31 and a waterproof layer 32 made of an asphalt material, and may be a single-layer structure composed of one material. The thickness of the heat insulating material 3 is not particularly limited, and is appropriately selected according to the required heat insulating performance and the proof stress against strong wind. The rigid urethane foam 31 preferably has a thickness in the range of 25 mm to 100 mm.

The waterproof layer 4 is a waterproof layer provided on the heat insulating material 3, and examples thereof include an asphalt material, a synthetic rubber material, and a plastic material processed into a sheet shape. The waterproof layer 4 in the present embodiment is made of a waterproof sheet made of an asphalt material, and is adhesively fixed on the heat insulating material 3 with an adhesive. The adhesive is not particularly limited, but it is preferable to use an adhesive that can enhance the heat insulating performance, and in the present embodiment, a urethane resin-based adhesive is used.

The installation hole 5 is a hole for fitting the panel support member 6, from the waterproof layer 4 provided on the heat insulating material 3 to the upper surface 22 of the angular corrugated convex portion 21 of the roof deck plate 2. It is formed so as to penetrate the waterproof layer 4 and the heat insulating material 3. As shown in FIGS. 1 and 2, the installation hole 5 in the present embodiment has an inner peripheral surface formed in a cylindrical shape.

Further, a plurality of installation holes 5 are opened according to the width of the reinforcing panel 6. A plurality of installation holes in the present embodiment are opened on the upper surface 22 of two adjacent angular corrugated convex portions 21 at equal intervals along the longitudinal direction of each angular corrugated convex portion 21, for a total of six. ing.

The number of installation holes 5 and the number of panel support members 6 are not limited to 6, and as shown in FIG. 3A, they straddle four or three angular corrugated convex portions 21. When it is installed, it may be appropriately selected depending on the size of the reinforcing panel 7, the size of the gantry 8, and the like, such as 10 as shown in FIG. 3 (b).

The panel support member 6 is fitted into the installation hole 5 and fixed to the upper surface 22 of the angular corrugated convex portion 21, and is for supporting the reinforcing panel 7 installed on the upper surface 22. The panel support member 6 is formed in a columnar shape that can be fitted to the inner circumference of the installation hole 5.

Further, the panel support material 6 is preferably formed of a material harder than the heat insulating material 3, and in the present embodiment, the panel support material 6 is formed of a hard resin material that does not cause a heat bridge phenomenon and has high load bearing performance. .. Specifically, hard rubber is exemplified.

The shape of the panel support member 6 is not limited to a columnar shape, and may be appropriately selected from a polygonal columnar shape having a polygonal cross section and the like.

The reinforcing panel 7 is a panel material for fixing the base plate 81 of the gantry 8. The reinforcing panel 7 of the present embodiment is formed in a square plate shape having a width corresponding to the outer distance between the two adjacent square corrugated convex portions 21 and 21. The thickness of the reinforcing panel 7 and the type of material are appropriately selected according to the weight of the gantry 8 and the structure (not shown) such as the solar panel supported by the gantry 8, and in the present embodiment, the reinforcing panel 7 is appropriately selected. A steel plate with a thickness of 4.3 mm is used.

Further, in the reinforcing panel 7 of the present embodiment, a plurality of washer fixing holes 71 are formed so that the reinforcing panel 7 can be fixed to the upper surface 22 of the angular corrugated convex portion 21 of the roof deck plate 2 by the heat insulating washer 9. The washer fixing hole 71 is located at a position corresponding to the upper surface 22 of the angular corrugated convex portion 21 and different from the installation hole 5 in order to avoid interference with the panel support member 6 fitted in the installation hole 5. A plurality of them are formed at predetermined intervals. Specifically, as shown in FIGS. 1 and 2, the panel support member 6 is arranged outside the left and right center positions on the upper surface 22 of the angular corrugated convex portion 21, whereas the washer fixing hole 71 is located at the center. It is opened at a position inside the position.

The heat insulating washer 9 is a washer for fixing the reinforcing panel 7 to the angular corrugated convex portion 21, and the heat insulating washer described in Japanese Patent No. 4208095 is exemplified. As shown in FIG. 4, the heat insulating washer 9 has an insertion hole 91 through which the fastener 10 formed in a substantially central portion is inserted, and the insertion hole 91 at the bottom, and the fastener 10 inserted through the insertion hole 91. It has a concave hollow accommodating portion 92 having a capacity for accommodating the head of the hollow accommodating portion and filling the heat insulating material for filling, and a flange portion 93 formed on the upper edge portion of the hollow accommodating portion 92. The fastener 10 is for fastening and fixing the heat insulating washer 9 to the upper surface 22 of the angular corrugated convex portion 21 via the insertion hole 91, and a drill screw or the like is exemplified.

The gantry 8 is installed on the roof of the building to support a structure such as a solar panel. As shown in FIGS. 1 and 5, the gantry 8 in the present embodiment has a base plate 81 and a connecting bolt 82 for connecting to a structure such as a solar panel provided on the base plate 81. The gantry 8 is appropriately selected according to the structure to be supported, and in the present embodiment, the gantry 8 includes a circular base plate 81.

Next, the construction method of the heat insulating waterproof roof structure 1 of this embodiment will be described.

The construction method of the heat insulating and waterproof roof structure 1 is to install the heat insulating material 3 and the waterproof layer 4 on the upper surface 22 of the angular corrugated convex portion 21 of the square wave-shaped roof deck plate 2 on the roof of the building. This is a method for constructing a heat-insulating and waterproof roof structure 1 on which a frame 8 can be installed. In the present embodiment, a case where the heat insulating and waterproof roof structure 1 is constructed on, for example, a newly constructed building, which includes the construction of the heat insulating material 3 and the waterproof layer 4 on the roof deck plate 2, will be described.

First, as shown in FIG. 6, the heat insulating material 3 is installed on the square wave-shaped roof deck plate 2 installed on the roof of the building (heat insulating material installation step). In the present embodiment, a urethane resin-based adhesive is applied to the upper surface 22 of the angular corrugated convex portion 21 of the roof deck plate 2, and a plate-like structure made of a hard urethane foam 31 and a waterproof layer 32 made of an asphalt material is applied thereto. Attach the heat insulating material 3.

Next, the waterproof layer 4 is installed on the heat insulating material 3 (waterproof layer installation step). In the present embodiment, a urethane resin-based adhesive is applied to the upper surface of the heat insulating material 3, and a sheet-shaped waterproof layer 4 made of an asphalt material is attached thereto.

When the roof deck plate 2, the heat insulating material 3 on the upper surface thereof, and the waterproof layer 4 on the roof deck plate 2 are installed on the roof of an existing building in which the roof deck plate 2, the heat insulating material 3 on the upper surface thereof, and the waterproof layer 4 on the roof deck plate 2 are installed in advance, the heat insulating material installation step and the waterproof layer installation step are omitted. , It can be constructed from the following process.

First, an installation hole 5 for inserting the panel support member 6 is opened in the heat insulating material 3 and the waterproof layer 4 installed on the roof deck plate 2 (installation hole opening step). Specifically, a plurality of installation holes 5 are drilled from the waterproof layer 4 to the upper surface 22 of the angular corrugated convex portion 21 of the roof deck plate 2 so as to penetrate the waterproof layer 4 and the heat insulating material 3.

Next, the panel support member 6 is fitted into each of the perforated installation holes 5 and fixed to the upper surface 22 of the angular corrugated convex portion 21 (support material installation step). In the present embodiment, a urethane resin-based adhesive is applied to the upper surface 22 of the angular corrugated convex portion 21 exposed by drilling the installation hole 5 and the inner peripheral surface of the installation hole 5, and the panel support material is provided. 6 is fitted into the installation hole 5 and fixed to the upper surface 22 of the angular corrugated convex portion 21. The adhesive may be applied to the outer peripheral surface of the panel support member 6 and fitted into the installation hole 5 to be fixed to the upper surface 22 of the angular corrugated convex portion 21.

Then, the reinforcing panel 7 is adhesively fixed on the waterproof layer 4 while being supported by the panel supporting material 6 (reinforcing panel adhesive fixing step). Specifically, the urethane resin-based adhesive used for adhesively fixing the heat insulating material 3 and the waterproof layer 4 is applied to the upper surface of the waterproof layer 4 and surrounded by the panel support material 6, and the urethane resin-based adhesive used for adhesive fixing is applied on the heat insulating material 3. The reinforcing panel 7 is installed and fixed by adhesion.

Further, the reinforcing panel 7 in the present embodiment is fastened and fixed to the angular corrugated convex portion 21 by the heat insulating washer 9 and the fastener 10. Specifically, the hollow accommodating portion 92 of the heat insulating washer 9 is accommodated in the hole provided in the heat insulating material 3 from the washer fixing hole 71 of the reinforcing panel 7. Then, the fastener 10 is inserted into the insertion hole 91 formed in the bottom portion of the hollow accommodating portion 92, and is fastened and fixed to the upper surface 22 of the angular corrugated convex portion 21. As a result, the reinforcing panel 7 is firmly fastened and fixed to the angular corrugated convex portion 21 by being pressed by the flange portion 93 of the heat insulating washer 9. Here, in order to improve the heat insulating performance, it is preferable to house the filling heat insulating material in the hollow housing portion 92.

Then, the base plate 81 of the gantry 8 is fixed on the reinforcing panel 7. In the present embodiment, the base plate 81 is fastened and fixed on the reinforcing panel 7 with bolts or the like. Further, in the present embodiment, the waterproof sheet 11 is laid on the pace plate 81 fixed to the reinforcing panel 7 to improve the waterproof performance.

According to the heat-insulating and waterproof roof structure 1 of the present embodiment and this construction method as described above, the following actions and effects can be obtained.
1. 1. By supporting the reinforcing panel 7 for fixing the base plate 81 of the gantry 8 with a plurality of panel support members 6, the weight of the structure such as the gantry 8 and the solar panel and the burden of the strong wind on the structure are directly insulated. It does not cover the material 3, and the heat insulating material 3 can be prevented from being deformed or damaged.
2. The same heat insulation treatment and waterproof treatment as the HT method (registered trademark) are possible, and the gantry can be installed while maintaining high heat insulation performance and high waterproof performance.

The heat-insulating and waterproof roof structure and the construction method according to the present invention are not limited to the above-described embodiments, and can be changed as appropriate. For example, the heat insulating material 3 is fastened and fixed to the upper surface 22 of the angular corrugated convex portion 21 by using a heat insulating washer 9 and a fastener 10 similar to the heat insulating washer 9 and the fastener 10 used when fixing the reinforcing panel 7. You may.

1 Insulation and waterproof roof structure 2 Roof deck plate 3 Insulation material 4 Waterproof layer 5 Installation hole 6 Panel support material 7 Reinforcement panel 8 Stand 9 Insulation washer 10 Fastener 11 Waterproof sheet 21 Square corrugated convex part 22 Top surface 31 Rigid urethane foam 32 Waterproof layer made of asphalt material 71 Washer fixing hole 81 Base plate 82 Connecting bolt 91 Insertion hole 92 Hollow accommodating part 93 Flange part

Claims (4)

It is a heat-insulating and waterproof roof structure that can be installed on the roof of a building.
A heat insulating material is installed on a square wave-shaped roof deck plate, and a waterproof layer is provided on the heat insulating material.
A plurality of installation holes formed through the waterproof layer and the heat insulating material from the waterproof layer to the upper surface of the angular corrugated convex portion of the roof deck plate.
A plurality of panel support members that are fitted into each of these installation holes and fixed to the upper surface of the angular corrugated convex portion,
The heat-insulating and waterproof roof structure having a reinforcing panel that is supported on these panel support materials and is adhesively fixed on the waterproof layer to fix the base plate of the gantry. A plurality of washer fixing holes are formed in the reinforcing panel at positions corresponding to the upper surface of the angular corrugated convex portion of the roof deck plate and different from the installation holes at predetermined intervals. The heat-insulating and waterproof roof according to claim 1, wherein the heat-insulating washer accommodates the hollow accommodating portion from the washer fixing hole in the heat-insulating material and is fixed to the angular corrugated convex portion of the roof deck plate with a fastener. Structure. The heat-insulating and waterproof roof structure according to claim 1 or 2, wherein the panel support material is made of a hard resin material harder than the heat insulating material. It is a method of constructing a heat-insulating and waterproof roof structure that can install a pedestal on the roof of a building in which a heat insulating material and a waterproof layer are installed on the upper surface of the square corrugated convex part of the square wave-shaped roof deck plate. hand,
An installation hole opening step of opening a plurality of installation holes formed through the waterproof layer and the heat insulating material from the waterproof layer to the upper surface of the angular corrugated convex portion of the roof deck plate.
A support material installation process in which the panel support material is fitted into each of the installation holes and fixed to the upper surface of the angular corrugated convex portion.
A method of constructing the heat-insulating waterproof roof structure, which comprises a reinforcing panel adhesive fixing step of adhesively fixing a reinforcing panel for fixing the base plate of the gantry on the waterproof layer while supporting the reinforcing panel on the panel support material.

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