JPH0348979Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a unit type roofing material for prefabricated buildings.

Conventional technology Conventionally, in prefabricated buildings used as general houses, for example, unit type roofing materials attached to the top of frames made of lightweight steel frames, etc., are made of lightweight concrete plates, etc., as shown in Figure 21, for example. It is composed of a rough surface panel 22, a waterproof sheet 23 placed on the surface of this, and a frame 24 for fixing the panel 22 with the waterproof sheet 23,
A waterproof sheet 23 was placed over only the upper surface of the panel 22 and bonded to the panel 22 via an adhesive layer 25 made of a rubber adhesive. And as shown in Figure 22,
A strip-shaped connecting sheet piece 26 made of the same material as the waterproof sheet 23 is passed over the side edges of the mutually adjacent roofing materials 21, 21, and the side edge 23a of the waterproof sheet 23 and the connecting sheet 26 are bonded to the adhesive layer 27. were connected through. However, in this case, if the building 20 vibrates due to an earthquake or the like, and vertical tension is applied to both left and right sides of the connecting sheet pieces 26, which are fastened to the mutually adjacent roofing materials 21, 21, the joints will not be able to be joined. The side edge 23 of the waterproof sheet 23
Peeling stress was applied to a. Since the surface of the panel 22 is rough, this causes the side edges 23a of the waterproof sheet 23 to peel off from the panel 22. If the wind blows in this condition, the waterproof sheet 23 will be exposed to the wind from below. This caused a so-called waving phenomenon to occur over the entire roof, which not only looked very unsightly, but also deteriorated the waterproofing effect. Conventionally, as shown in FIG. 23, a back-up material 28 made of string-like foam or the like is filled into the gap between the adjacent roofing materials 21, 21.
If the sealant 29 is filled on top of this to seal the gap, if the sealant 29 is only filled inside the gap between the roofing materials 21 and 21, the contact area between the sealant 29 and the waterproof sheet 23 will be too large. As a result, the sealant 29 has to be applied not only to the inside of the gap but also to the upper surface of the waterproof sheet 23. However, this not only increases the amount of sealant 29 used and increases the cost, but also cracks are likely to occur in the sealant 29 from the corner P at the upper end of the side edge of the roofing material 21 after waterproofing. The problem was that the durability was very poor.

Purpose of the invention The purpose of this invention is to solve the above-mentioned problems. For example, even if the building shakes due to an earthquake, the waterproof sheet will hardly peel off from the panel, so it will have a clean appearance, and Excellent waterproofing properties can be effectively maintained for a long period of time, the amount of sealant used is small, and there is very little risk of deterioration due to cracks in the sealant, resulting in highly durable waterproofing construction. We are trying to provide you with the roofing material you want.

Structure of the invention In order to achieve the above-mentioned purpose, this invention is a roof equipped with a rough panel made of lightweight concrete plates, etc., a waterproof sheet to cover the surface of the panel, and a frame for fixing the panel with the waterproof sheet. The gist is a roofing material in which the peripheral edge of a waterproof sheet is joined to a joint piece attached to the peripheral edge of a panel.

Embodiment Next, an embodiment of this invention will be described based on the drawings.

In FIGS. 1 to 3 showing a first embodiment of this invention, a roofing material 1 according to this invention includes three rough-surfaced panels 2 made of lightweight concrete plates, etc., and a waterproof sheet 3 placed over these surfaces. and a rectangular frame 4 made of channel steel that fixes the panel 2 with the waterproof sheet 3.
The waterproof sheet 3 is placed over the entire upper surface and circumferential side of these three panels 2, and the peripheral edge 3a and intermediate required portion 3b of the waterproof sheet 3 are bonded to the bonding piece 5 via the adhesive layer 7, respectively. It is something that exists. Each panel 2 is fixed to the frame 4 at its four corners with bolts 13 and nuts 14.

As the rough surface panel 2, in addition to lightweight concrete boards such as ALC boards and PC boards, flexible boards, glass fiber-containing gypsum boards, asbestos slate boards, etc. are used.

The waterproof sheet 3 is made of soft polyvinyl chloride,
A sheet made of thermoplastic synthetic resin such as polyethylene or polypropylene, a non-vulcanized rubber sheet, a rubber asphalt sheet, etc. may be used, but it is particularly preferable to use a soft polyvinyl chloride sheet from the viewpoint of adhesiveness. The thickness of the tarpaulin is usually approx.
It is 1.0~2.0mm.

Further, as the joining piece 5, a plate material such as a hard or semi-hard synthetic resin plate, a metal plate, or a steel plate coated on one or both sides with vinyl chloride resin to improve adhesion is used.

As the fixture 6 for fixing the joining piece 5 to the panel 2, a split nail, a curl plug, or the like is used.

As the adhesive for joining the waterproof sheet 3 to the joint piece 5, epoxy-based, urethane-based, rubber-based adhesives, etc. can be used. In such a case, it is preferable to use tetrahydrofuran alone or a solvent-based adhesive prepared by dissolving a small amount of vinyl chloride resin in tetrahydrofuran, since this produces an adhesive effect with excellent durability.

FIG. 4 to FIG. 7 show the roofing material 1 of the above-mentioned first embodiment.
Among the joint pieces 5 shown in FIG. First, in FIG. 4, a flat band-like joining piece 5c is used, and this is attached to the side surface of the peripheral edge of the entire panel 2. Next, in FIG. 5, a joint piece 5d having a cross section consisting of a wide horizontal part and a narrow vertical part is used, and this is attached to the periphery of the entire panel 2, and the waterproof sheet 3 The peripheral edge 3a of the joint piece 5d is joined only to the wide horizontal part of the joint piece 5d. In FIG. 6, on the contrary, a cross-sectional joint piece 5e consisting of a narrow horizontal part and a wide vertical part is used, and this is attached to the peripheral edge of the entire panel 2, and is attached to the peripheral edge 3a of the waterproof sheet 3. is joined to the joining piece 5e. In FIG. 7, a flat strip-shaped joint piece 5
f is used and is attached to the upper surface of the periphery of the entire panel 2. Note that the joining piece 5b used in the middle portion of the panel 2 is not limited to a circular shape, and may of course have other shapes such as a rectangular shape, an elliptical shape, or a strip shape.

Note that other points of the modified examples shown in FIGS. 4 to 7 are the same as in the first embodiment, so
Identical parts in the drawings are given the same reference numerals.

The roofing material 1 of the first embodiment is, for example, as shown in FIG.
It is fixed to the top of the frame by bolts 13 and nuts 14. and mutually adjacent roofing materials 1,
A strip-shaped connecting sheet piece 15 made of the same material as the waterproof sheet 3 is passed between the side edges of the waterproof sheets 3 and 1, and both side edges of this are attached to the upper side edges of the waterproof sheets 3, 3 with an adhesive layer 7. are joined through.

Here, as the adhesive for joining the waterproof sheet 3 and the connecting sheet piece 15, solvent-based adhesive, epoxy adhesive, urethane adhesive, rubber adhesive, etc. are used as in the case of the waterproof sheet 3 and the joining piece 5. It is possible.

In FIG. 8, for example, when the building 10 vibrates due to an earthquake or the like, tension is applied in the vertical direction to the left and right edges of the connecting sheet pieces 15 that are fastened to the mutually adjacent roofing materials 1, 1. Even in such a case, since the peripheral edge 3a of the waterproof sheet 3 is very firmly joined to the joining piece 5, there is almost no possibility that the waterproof sheet 3 will peel off.

FIG. 9 shows the roofing material 1 of the first embodiment being applied to a building 1.
This shows a modification example in the case of attaching to the beam 12 of No. 0. Here, in the case of the above first embodiment (eighth
The difference from the diagram) is that the roofing materials 1 and 1 are adjacent to each other.
A backup material 8 made of string-like foam is packed in the lower part of the gap between the two, and a sealant 9 is filled on top of this to seal the gap. Here, as the sealant 9, a normal sealant such as urethane-based or silicone-based sealant, or a special sealant made by dissolving the same material as the waterproof sheet 3 in a solvent is used. The latter sealant typically has a viscosity of about 2500 to 3500 cps to make it suitable for coating operations. The same material as the waterproof sheet 3 not only has the same resin or rubber as the main component, but also has the same filler, plasticizer, etc. Therefore, the sealant is a cut piece of the waterproof sheet 3. It is preferable to make it by dissolving it in a solvent.

In the above, since the peripheral edge 3a of the waterproof sheet 3 placed over the panel 2 of the roofing material 1 is joined to the joint piece 5 attached to the panel 2, the gap between the adjacent roofing materials 1 and 1 is filled. The sealed sealant 9 is bonded to the side surface of the peripheral edge 3a of the waterproof sheet 3, so that the bonding area becomes sufficiently large.
Therefore, the sealing agent 9 achieves a sufficient sealing effect simply by filling the inside of the gap, and there is no need to apply an excessive amount of the sealing agent 9 to the upper surface of the periphery of the waterproof sheet 3 as in the conventional case. Also, since the sealant 9 is filled in the gap in this way,
There is less risk of cracks occurring in the sealant 9 after waterproofing.

The other points of this modified example of FIG. 9 are the above-mentioned first
Since this is the same as in the embodiment, the same reference numerals are given to the same parts in the drawings.

10 to 12 show a second embodiment of this invention. Here, the difference from the first embodiment is that the peripheral edge 3a and intermediate required portion 3b of the waterproof sheet 3 covering the upper surface and peripheral side of the entire panel 2 are connected to the outer side by the joint pieces 5a and 5b. It is at the point where it is being held down. Therefore, the fixtures 6 for fixing these joint pieces 5 to the panel 2 are
And it is attached to the panel 2 by passing through the waterproof sheet 3 inside this. The top of each fixture 6 is covered with a sealant 9 similar to that described above, and here, the peripheral edge 3a of the waterproof sheet 3 has an inverted L cross section.
It is joined only to the inner surface of the horizontal part of the shaped joint piece 5a.

The other points of this second embodiment are the same as those of the first embodiment, so the same parts are given the same reference numerals in the drawings.

13 to 16 show four modified examples in which the shape of the joint piece 5 used for the peripheral edge of the panel 2 is different among the joint pieces 5 of the roofing material 1 of the second embodiment. corresponds to FIGS. 4 to 7. First, in FIG. 13, a flat band-like joining piece 5c is used to hold down the peripheral edge 3a of the waterproof sheet 3 on the side surface of the peripheral edge of the entire panel 2. Next, in FIG. 14, a joint piece 5d having a cross section of a wide horizontal part and a narrow vertical part is used, so that the waterproof sheet 3 The peripheral edge 3a of is held down. In FIG. 15, on the other hand, a cross-sectional joint piece 5e consisting of a narrow horizontal part and a wide vertical part is used, so that the peripheral edge 3a of the waterproof sheet 3 at the peripheral edge of the entire panel 2 is used. Being held down. In FIG. 16, a flat strip-like joining piece 5f is used, which allows the peripheral edge 3a of the waterproof sheet 3 to be attached to the upper surface of the peripheral edge of the entire panel 2.
is being held down.

Note that other points in the modified examples shown in FIGS. 13 to 16 are the same as in the second embodiment, so the same parts are given the same reference numerals in the drawings.

FIGS. 17 and 18 show a third embodiment of this invention. Here, the difference from the first embodiment is that the three rough panels 2 of the roofing material 1
Joint pieces 5a, 5b are attached to the peripheral edge and intermediate required part of each panel 2, and the peripheral edge 3a and intermediate required part 3b of the waterproof sheet 3 covered with each panel 2 are attached to these joint pieces 5a, 5b. A band-shaped sealing sheet piece 16 made of the same material as the waterproof sheet 3 is passed between the points joined to the waterproof sheet 3 and the side edges of the adjacent panels 2, 2, and these sheet pieces 16 are attached to the waterproof sheet 3, 3 through an adhesive layer 7. As the adhesive for joining the waterproof sheet 3 and the band-shaped sealing sheet piece 16, solvent-based adhesives, epoxy-based, urethane-based, rubber-based adhesives, etc. are used as in the case of the waterproof sheet 3 and the joining piece 5. do.

The other points of this third embodiment are the same as those of the first embodiment, so the same parts are given the same reference numerals in the drawings.

19 and 20 show a fourth embodiment of this invention. Here, the difference from the case of the third embodiment is that a waterproof sheet 3 is placed on the top surface and peripheral side of each of the three panels 2.
The peripheral edge portion 3a and the intermediate required portion 3b are connected to the joint piece 5a,
5b, and the joint pieces 5a, 5 on the side edges of the adjacent panels 2, 2.
A band-shaped sealing sheet piece 16 made of the same material as the waterproof sheet 3 is passed between the members a, and these sheet pieces 16 are coated with an adhesive layer 7 on the upper surface of the joint pieces 5a, 5a.
It is at the point where it is joined through.

The other points of this fourth embodiment are the same as those of the first embodiment, so the same parts are given the same reference numerals in the drawings.

In each of the above embodiments, three rough panels 2 made of lightweight concrete plates are used for one roofing material 1. It is sufficient if only one sheet is used.

Effects of the invention As described above, this invention includes a rough surface panel 2 made of a lightweight concrete board or the like, a waterproof sheet 3 to be placed over the surface of the panel, and a frame 4 for fixing the panel 2 with the waterproof sheet 3 attached. In roofing material 1,
Since the peripheral edge 3a of the waterproof sheet 3 is joined to the joint piece 5 attached to the peripheral edge of the panel 2, when the building 10 vibrates due to an earthquake, for example, the adjacent roofing materials 1 , 1, even if tension is applied in the vertical direction to the left and right edges of the connecting sheet piece 15, which is fixed across the connecting sheet pieces 15, the bonding strength between the waterproof sheet 3 and the connecting piece 5 attached to the panel 2 is maintained. It is sufficiently large and there is almost no possibility that the waterproof sheet 3 will peel off. Therefore, the roofing material 1 has an extremely beautiful appearance and has the advantage of being able to effectively maintain its excellent waterproofing properties for a long period of time.

In addition, when the circumferential side of the panel 2 of the roofing material 1 is covered with the waterproof sheet 3 and the joint piece 5, the sealant 9 filled in the gap between the adjacent roofing materials 1, 1 is applied to the waterproof sheet 3 or the joint piece 5. It is bonded to the circumferential side surface of the piece 5, and therefore the bonding area is sufficiently large.
Therefore, the sealing agent 9 achieves a sufficient sealing effect simply by filling the inside of the gap, and there is no need to apply an excessive amount of the sealing agent 9 to the upper surface of the waterproof sheet 3 as in the conventional case. Therefore, there are advantages in that the amount of sealant 9 used is very small, there is very little risk of deterioration of sealant 9 due to cracks, and highly durable waterproof construction can be performed.

[Brief explanation of the drawing]

Figures 1 to 3 show the first embodiment of this invention, with Figure 1 being a partially cutaway perspective view of the product of the invention, and Figure 2 being an enlarged sectional view taken along the line of Figure 1. ,
FIG. 3 is an enlarged sectional view taken along the line of FIG. 1. FIGS. 4 to 7 are enlarged sectional views showing four modified examples of the joining piece of the first embodiment. 8th
The figure is a partial sectional view of the roof of a building showing the state in which the product of the present invention is used, and FIG. 9 is a partial sectional view showing a modified example of the state of use of the product of the present invention. Figures 10 to 12 show a second embodiment of this invention, with Figure 10 being a partially cutaway perspective view of the product of the invention, and Figure 11 being the same as Figure 10.
FIG. 12 is an enlarged sectional view taken along line XI-XI, and FIG. 12 is an enlarged sectional view taken along line XII-XII. FIGS. 13 to 16 are enlarged sectional views showing four modified examples of the joining piece of the second embodiment. Figures 17 and 18 show a third embodiment of this invention. Figure 17 is a partially cutaway perspective view of the product of the invention, and Figure 18 is an enlarged sectional view taken along the line of Figure 17. be. Figures 19 and 20 show a fourth embodiment of this invention.
Figure 19 is a partially cutaway perspective view of the product of the present invention;
The figure is an enlarged sectional view taken along the line of FIG. 19. Figures 21 to 23 show conventional examples.
FIG. 21 is a partially cutaway perspective view, FIG. 22 is a partial cross-sectional view of the roof of a building showing a state of use, and FIG. 23 is a partial cross-sectional view of a modified example of a state of use. 1... Roofing material, 2... Rough surface panel, 3... Waterproof sheet, 3a... Peripheral part, 3b... Intermediate required part,
4...Frame, 5...Joining piece, 6...Fixing tool, 7...Adhesive layer, 9...Sealant, 10...Building, 12...
... Beam, 15... Connecting sheet piece, 16... Sealing sheet piece.

Claims (1)

[Scope of utility model registration request] Rough surface panel 2 made of lightweight concrete board, etc.
In the roofing material 1, which includes a waterproof sheet 3 that is placed over the surface of the waterproof sheet 3, and a frame 4 that fixes the panel 2 with the waterproof sheet 3, the peripheral edge 3a of the waterproof sheet 3 is
is joined to a joining piece 5 attached to the peripheral edge of the panel 2.