JPH0628046U - Fireproof structure in the roof valley - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the fireproof performance of the roof valley. [Structure] A waterproof sheet 2 made of resin is placed between the upper surfaces of the base plate 1 on both sides of the roof valley. At least the surface of the substantially central portion 7 of the waterproof sheet 2 is formed as the metal plate portion 3. A plurality of projecting pieces 4 inclined toward the center are provided on the upper surfaces of both sides of the waterproof sheet 2. The roofing material 5 is placed on each side of the waterproof sheet 2. The substantially central portion 7 of the waterproof sheet 2 which is not covered with the roof material 5 can be formed of the metal plate portion 3 to have fireproof performance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fireproof structure for a roof valley portion provided with a waterproof sheet.

[0002]

[Prior art]

 As shown in FIG. 6, a waterproof sheet 2 is provided between the base plate 1 and the roof material 5 in the roof valley of the house. The waterproof sheet 2 is made of vinyl chloride resin or the like by extrusion molding to have a long length. The upper surface of both side portions except the substantially central portion 7 has protrusions 4 inclined in the central direction over the entire length. Is provided. Then, the waterproof sheet 2 is placed over the upper surface of the base plate 1 on both sides of the roof valley. Then, the roof material 5 is placed on each side of the waterproof sheet 2 so that the end portion of the roof material 5 is placed on the innermost protruding piece 4 of the waterproof sheet 2, and the roof valley is formed. is there.

[0003]

[Problems to be solved by the device]

 However, since the roofing material 5 is not placed above the approximately central portion 7 of the waterproof sheet 2, the waterproof sheet 2 is exposed on the surface, and the waterproof sheet 2 made of vinyl chloride resin or the like has a fireproof performance in the root valley portion. I couldn't get it. The present invention has been made in view of the above points, and an object of the present invention is to provide a structure of a roof valley portion with improved fireproof performance.

It is another object of the present invention to provide a structure of a roof valley portion having improved waterproof performance.

[0005]

[Means for Solving the Problems]

 The fireproof structure of the roof valley according to the present invention has a waterproof sheet 2 made of resin placed between the upper surfaces of the base plate 1 on both sides of the roof valley, and the substantially central portion 7 of the waterproof sheet 2 at least on the surface. A plurality of projecting pieces 4 inclined in the central direction on the upper surfaces of both sides of the waterproof sheet 2, and the roofing material 5 is placed on each side of the waterproof sheet 2. It is characterized by.

Further, in the present invention, support pieces 6 that stand up in a corrugated cross section may be provided at both ends of the waterproof sheet 2.

[0007]

[Action]

 Since the substantially central portion 7 of the waterproof sheet 2 made of resin is formed as the metal plate portion 3 between the upper surfaces of the base plate 1 on both sides of the roof valley portion, at least the surface is formed as the metal plate portion 3. 3 is exposed to the upper side, and the fire protection performance can be provided between the roof articles 5. Further, since the supporting pieces 6 which rise in a corrugated cross section are provided at both end portions of the waterproof sheet 2, the supporting pieces 6 support the load of the roof material 5 and the projecting pieces 4 provided on the upper surfaces of both side portions of the waterproof sheet 2 are roof members. A weight of 5 can prevent it from being crushed.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to embodiments. FIG. 2 (a) shows a side view of a waterproof sheet 2 which is made long by extrusion molding of soft polyvinyl chloride or the like. The waterproof sheet 2 is formed by coating a resin layer 9 such as vinyl chloride resin on the upper surface and the lower surface of a core material 8 made of metal such as aluminum. Further, the substantially central portion 7 of the waterproof sheet 2 is formed as a metal plate portion 3 formed of a core material 8 whose upper and lower surfaces are not covered with the resin layer 9, and is formed on the upper surface of the resin layer 9 on both sides of the waterproof sheet 2. Is provided with three kinds of projecting pieces 4a, 4b, 4c inclined in the central direction over the entire length. These projecting pieces 4a, 4b, 4c have different sizes and bending angles, as shown in FIGS. 2 (b), (c) and (d).

When constructing the roof, as shown in FIG. 1, the waterproof sheet 2 is placed so as to extend over both upper surfaces of the base plate 1 mounted on the rafters 10 in the roof valley. Then, the ends of the roofing material 5 are placed on the protruding pieces 4 on both sides of the waterproof sheet 2, respectively. At this time, the lower end of the roof material 5 is placed on the innermost protruding piece 4a so that the metal plate portion 3 of the substantially central portion 7 of the waterproof sheet 2 is exposed between the roof materials 5 on both sides.

Since the projecting piece 4 is elastically contacted under the roof material 5 in the roof valley portion having such a structure, it is possible to prevent water from entering through the gap between the end portion of the roof material 5 and the base plate 1. I can. Further, the substantially central portion 7 of the waterproof sheet 2 which is not covered with the roof material 5 is non-combustible because the metal plate portion 3 is exposed, and has passed JIS A 1312 "Roof Fire Prevention Test Method". FIG. 4 shows another embodiment of the waterproof sheet 2. As shown in FIG. 4 (e), the waterproof sheet 2 is provided with supporting pieces 6 formed of vinyl chloride resin or the like and rising in a corrugated cross section over the entire length at both ends of the waterproof sheet 2 of the above embodiment.

When construction is carried out using this waterproof sheet 2, the roof material 5 is placed on the support pieces 6 provided at both ends of the waterproof sheet 2 as shown in FIG. It is possible to prevent the protruding piece 4 of the waterproof sheet 2 from being crushed by the weight of the roofing material 5 and to prevent the waterproof performance of the protruding piece 4 from being deteriorated.

Further, FIG. 5 shows another embodiment of the waterproof sheet 2. The waterproof sheet 2 has a substantially central portion 7 of the waterproof sheet 2 of the above embodiment as shown in FIG. 5 (b). That is, the waterproof sheet 2 is formed by coating a resin layer 9 of vinyl chloride resin or the like on the upper surface and the lower surface of a core material 8 made of a metal such as aluminum. A metal plate 11 made of aluminum or the like is provided on the top to form a metal plate portion 3. On the upper surface of the upper side resin layer 9 on both sides of the waterproof sheet 2, the same three kinds of projecting pieces 4a, 4b, 4c as those in the above-mentioned embodiment are provided over the entire length while inclining toward the center direction. At both ends of 2, supporting pieces 6 made of vinyl chloride resin or the like which stand up in a corrugated cross section are provided.

[0013]

[Effect of device]

 As described above, according to the present invention, a waterproof sheet made of resin is placed between the upper surfaces of the base plates on both sides of the roof trough, and at least the central portion of the waterproof sheet is formed with at least the surface as a metal plate portion and is waterproof. Since a plurality of protruding pieces that incline toward the center are provided on the upper surfaces of both sides of the sheet and the roofing material is placed on each side of the waterproof sheet, the roofing material on both sides is not covered. The waterproof sheet is formed as a metal plate part, and it is possible to give the fireproof function to the approximately central part and improve the fireproof performance of the roof valley part.

Further, since the supporting pieces which stand up in a corrugated cross section are provided at both end portions of the waterproof sheet, the supporting pieces can support the load of the roof material, and the protruding pieces provided on the upper surfaces of both side portions of the waterproof sheet are the roof material. Preventing water from entering through the gap between the edge of the roofing material and the waterproof sheet can be prevented by preventing it from being crushed by the weight of, and the waterproof performance of the roof valley can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

2A and 2B show the above waterproof sheet, wherein FIG. 2A is a side view, FIG. 2B is an enlarged view of portion B of FIG. 2A, and FIG. 2C is an enlarged view of portion C of FIG. (d) is an enlarged view of the D portion of (a).

FIG. 3 is a sectional view of another embodiment of the above.

4A and 4B show a waterproof sheet of another embodiment of the above, in which FIG. 4A is a half side view, FIG. 4B is an enlarged view of portion B of FIG. 4A, and FIG. An enlarged view of a C portion, (d) is an enlarged view of a D portion of (a), and (e) is an enlarged view of an E portion of (a).

5A and 5B show a waterproof sheet of another embodiment of the above, wherein FIG. 5A is a side view and FIG. 5B is an enlarged sectional view of a portion A of FIG.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

 1 Field plate 2 Waterproof sheet 3 Metal plate part 4 Projecting piece 5 Roofing material 6 Supporting piece 7 Central part

Claims (2)

[Scope of utility model registration request] 1. A waterproof sheet made of resin is placed between the upper surfaces of the field boards on both sides of the roof valley, and the substantially central portion of the waterproof sheet is formed with at least the surface as a metal plate section and both sides of the waterproof sheet. A fire protection structure for the roof valley, which is formed by providing a plurality of projecting pieces that incline toward the center on the upper surface of the section and placing roofing material on each side of the waterproof sheet. 2. A fireproof structure for a roof valley portion, which comprises support pieces rising in a corrugated cross section at both end portions of the waterproof sheet according to claim 1.