JP7594716B2 - Waterproofing of roof - Google Patents

Description

The present invention relates to a waterproof structure for the roof of, for example, a modular house for housing, and in particular to a structure that is devised to enhance waterproofing and reliably prevent rainwater from entering without the need for cumbersome installation work.

For example, Patent Document 1 and Patent Document 2 disclose waterproof structures for roofs of this type of modular house.
The one- and two-story modular house proposed in the above-mentioned Patent Document 1 discloses a waterproof structure in which the joints of the galvanized steel sheets are folded with built-in waterproof tape.
The waterproofing structure for a modular house roof according to the invention described in the above-mentioned Patent Document 2 discloses a configuration in which a joint strip is pressed to the seams of adjacent roofing materials to connect the roofing materials to each other.

Japanese Utility Model Application Publication No. 4-56804 Utility Model Registration No. 3205530

The above conventional configuration has the following problems.
The waterproof structures disclosed in the above-mentioned Patent Documents 1 and 2 could not completely prevent the intrusion of rainwater.
Furthermore, the process of connecting the roofing materials together requires special tools, which is troublesome and requires a large number of steps.

The present invention was made based on these points, and its purpose is to provide a waterproof roof structure that can improve waterproofing performance and reliably prevent rainwater from entering without requiring cumbersome work.

In order to solve the above problem, the waterproof roof structure of claim 1 of the present invention is a waterproof roof structure consisting of multiple roofing materials extending vertically from the front side to the back side of a building connected horizontally, wherein a first engagement portion is formed at one end of the roofing materials and a second engagement portion is formed at the other end, and wherein, for two adjacent roofing materials, the second engagement portion of one roofing material is overlapped on top of the first engagement portion of the other roofing material, a plate material is installed on top of the second engagement portion so as to close the gap between the tip of the second engagement portion and the first engagement portion, and a bolt is screwed in from above the plate material, so that the tip of the bolt does not penetrate the first engagement portion.
Furthermore, the waterproof structure for a roof according to claim 2 is the waterproof structure for a roof according to claim 1, characterized in that a seal member is interposed between the first engagement portion and the second engagement portion.
Furthermore, the roof waterproofing structure according to claim 3 is a roof waterproofing structure according to claim 1 or 2, characterized in that the first engagement portion is formed with a recess for accommodating the tip portion of the bolt.
The waterproof structure for a roof according to claim 4 is characterized in that in the waterproof structure for a roof according to claim 3, the recess is formed extending in the longitudinal direction of the roof material.
Furthermore, the roof waterproofing structure according to claim 5 is a roof waterproofing structure according to any of claims 1 to 4, characterized in that the roof material is installed at a downward slope from the front side to the back side.
A waterproof roof structure according to claim 6 is the waterproof roof structure according to any one of claims 1 to 5, characterized in that the building is a modular house.

As described above, according to the waterproof roof structure of claim 1 of the present invention, in a waterproof roof structure consisting of multiple roofing materials extending vertically from the front side to the back side of a building connected horizontally, a first engagement portion is formed at one end of the roofing materials and a second engagement portion is formed at the other end, and for two adjacent roofing materials, the second engagement portion of one roofing material is overlapped on top of the first engagement portion of the other roofing material, a plate material is installed on top of the second engagement portion to close the gap between the tip of the second engagement portion and the first engagement portion, and a bolt is screwed in from above the plate material, so that the tip of the bolt does not penetrate the first engagement portion, thereby improving the waterproof function without the need for troublesome work and reliably preventing the intrusion of rainwater.
Furthermore, according to the roof waterproofing structure of claim 2, in the roof waterproofing structure described in claim 1, a sealing member is interposed between the first engagement portion and the second engagement portion, thereby enhancing the above effect.
Furthermore, according to the roof waterproofing structure of claim 3, in the roof waterproofing structure described in claim 1 or claim 2, a recess is formed in the first engagement portion to accommodate the tip of the bolt, so that even if rainwater penetrates under the plate material, it will collect in the recess and will not penetrate any further.
Furthermore, according to the roof waterproofing structure of claim 4, in the roof waterproofing structure described in claim 3, the recess is formed extending in the longitudinal direction of the roof material, so that even if rainwater accumulates in the recess, it flows along the recess and is discharged to the outside.
Furthermore, according to the roof waterproofing structure of claim 5, in the roof waterproofing structure described in any of claims 1 to 4, the roof material is installed at a downward slope from the front side to the back side, so that even if rainwater accumulates in the recess, it will flow to the back side of the recess and be discharged to the outside.
Furthermore, according to the roof waterproofing structure of claim 6, in the roof waterproofing structure of any of claims 1 to 5, since the building is a modular house, a modular house with high waterproofing performance can be provided.

FIG. 1 is a front view of a modular house according to an embodiment of the present invention. FIG. 2 is a view showing an embodiment of the present invention, taken along the line II-II of FIG. FIG. 3 is a view showing an embodiment of the present invention, taken along the line III-III in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2, showing an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line VV of FIG. 1, showing an embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 1, showing an embodiment of the present invention. FIG. 7 is a diagram showing an embodiment of the present invention, and is a partial cross-sectional view showing an enlarged view of part VII in FIG. 4. FIG. 8 is a partial cross-sectional view showing an enlarged view of part VIII in FIG. 5 , illustrating an embodiment of the present invention. FIG. 6 is a diagram showing an embodiment of the present invention, and is a partial cross-sectional view showing an enlarged view of part IX in FIG. 5. FIG. 6 is a diagram showing an embodiment of the present invention, and is a partial cross-sectional view showing an enlarged view of a portion X in FIG. 5. FIG. 8 is a diagram showing an embodiment of the present invention, and is a partial cross-sectional view showing an enlarged portion XI of FIG. 7. 12(a) shows an embodiment of the present invention, and FIG. 12(a) is an end view of an aluminum frame material of a roof material, FIG. 12(b) is an enlarged view of part b in FIG. 12(a), and FIG. 12(c) is an enlarged view of part c in FIG. 12(a).

An embodiment of the present invention will now be described with reference to Figures 1 to 12. This embodiment shows an example in which the present invention is applied to the roof of a modular house 1 for use as a residence.
First, the unit house 1 has a frame structure 3, which is provided with a plurality of pillars 5 (in this embodiment, four on the front side, four on the back side, and one on each of the left and right sides, for a total of ten). Bases 6 are attached to the lower ends of these ten pillars 5. The unit house 1 can be installed in any desired location by fixing these ten bases 6 with anchor bolts 8. In addition, floor material support members 7 are attached to the lower parts of the ten pillars 5, arranged in a vertical and horizontal grid pattern.

A number of beams 9 are installed on the ten pillars 5. As shown in Figures 4 and 5, the beams 9 are attached to the ten pillars 5 in a vertical and horizontal grid pattern.

As shown in FIG. 6, a transparent or semi-transparent exterior wall 11 is installed on the front surface and the front half of both the left and right sides of the framework structure 3. An aluminum exterior wall 13 is installed on the back half of both the left and right sides of the framework structure 3 and on the back surface. An inner wall 15 made of Chinese plywood is installed on the back half of both the left and right sides of the framework structure 3 and on the back surface.

As shown in Figs. 1 and 6, a door 17 is installed on the surface of the framework structure 3, and an inner wall 15 is installed around the door 17. The door 17 is attached between the pillar 5 and another pillar 5', as described above, so that it can be opened and closed freely. Braces 19 are installed on the back halves of the left and right sides of the framework structure 3 and on the back surface between the outer wall 13 and the inner wall 15. A plurality of floor materials 21 (six in this embodiment) are installed at the bottom of the framework structure 3, supported by the floor material support members 7. An entrance floor 23 is installed inside the door 17.

As shown in Figures 7 and 10, metal fittings 31 made of angle bars are fixed to the undersides of the beams 9 arranged around the periphery with multiple bolts 33. In addition, another L-shaped metal fitting 35 is fixed to the sides of all the beams 9 with multiple bolts 39, either via a liner 37 or without a liner. The upper end of the inner wall 15 is sandwiched between the metal fittings 31 and 35. In addition, multiple ceiling panels 41 are installed on the metal fittings 35. The ceiling panels 41 are decorative gypsum boards. In addition, braces 43 are installed between the beams 9 and above the ceiling panels 41.

As shown in Figures 7, 8, and 10, metal fittings 51 with a hollow rectangular cross section are fixed to the outer periphery of the beams 9 located on the periphery with multiple bolts 52. Gable side fascia boards 53, girder side fascia boards 55, and girder side fascia boards 56 are attached to these metal fittings 51 with multiple bolts 58. In addition, as shown in Figure 9, roof support materials 57 are attached to the beams 9 other than the beams 9 located on the periphery. Multiple roof materials 71 are installed on the gable side fascia boards 53, girder side fascia boards 55, girder side fascia boards 56, and roof support materials 57.

The roof material 71 is composed of an aluminum frame material 73 and Styrofoam (registered trademark) 75 attached to the inside of this frame material 73. Under the multiple roof materials 71, multiple (three in this embodiment) Styrofoam (registered trademark) fall prevention members 77 are installed so as to cross the multiple roof materials 71. The Styrofoam (registered trademark) 75 is prevented from falling by these Styrofoam (registered trademark) fall prevention members 77.

The frame material 73 has an end face shape as shown in Fig. 12(a). At one end of the end face of the frame material 73, a first engagement portion 81 is formed, and at the other end, a second engagement portion 83 is formed. When two adjacent roof materials 71, 71 are connected, as shown in Figs. 7 and 11, the second engagement portion 83 of the frame material 73 of one roof material 71 is engaged from above on the first engagement portion 81 of the frame material 73 of the other roof material 71. The first engagement portion 81 is formed in a stepped shape, and a recess 85 is formed therein in a further recessed state. The second engagement portion 83 is formed thicker than other portions.
The frame material 73 has a cross-sectional shape shown in FIG. 12(a) that is continuously formed in a direction perpendicular to the paper surface.

The frame material 73 has grooves 87, 87 formed in two places for fixing the Styrofoam (registered trademark) fall prevention member 77. The groove 87 has a nut groove 89 formed therein. As shown in FIG. 7, the Styrofoam (registered trademark) fall prevention member 77 is fixed to the frame material 73 of the roof material 71 by screwing a bolt 91 through a through hole (not shown) provided in the Styrofoam (registered trademark) fall prevention member 77 and a nut 93 installed in the nut groove 89.

As shown in FIG. 11, a seal member 101 is interposed between the first engaging portion 81 and the second engaging portion 83, and another seal member 103 is also interposed.

When two adjacent roof materials 71, 71 are connected, the second engagement portion 83 of the frame material 73 of one roof material 71 is engaged from above onto the first engagement portion 81 of the frame material 73 of the other roof material 71. At that time, seal members 101, 103 are inserted between the first engagement portion 81 and the second engagement portion 83. In this state, a fixing bolt 107 is screwed from above the second engagement portion 83 via a plate material 105. The tip portion 107a of the fixing bolt 107 penetrates the first engagement portion 81 and the second engagement portion 83 and is screwed into the recess 85 by self-tapping.

As shown in FIG. 8, an aluminum roof edge member 121 is fixed to the front end of the multiple roof materials 71 with multiple fixing bolts 122, and as shown in FIG. 10, an aluminum roof edge member 123 is fixed to the back end with multiple fixing bolts 124. In addition, as shown in FIG. 7, aluminum drip-proof members 125, 125 are installed on both the left and right ends of the multiple roof materials 71.

The operation of the above configuration will now be described.
First, regarding the function of the modular house 1 as a residence, the occupants enter and live inside by opening the door 17. Various living facilities, appliances, etc. (not shown) are provided inside.

Next, the waterproofing function of the roof will be explained.
As shown in Fig. 11, rainwater is prevented from seeping in below by the plate material 105. Even if rainwater does seep in, it will not seep in below because it is sealed by the sealing members 103 and 101. Even if rainwater does seep in, it will simply collect in the recess 85 of the first engagement portion 81 and will not seep in below. Furthermore, as shown in Fig. 2, rainwater that has collected in the recess 85 is drained to the outside from the back side (the right end in Fig. 2) due to the slope of the roof.

As described above, according to this embodiment, the following effects can be obtained.
First, the waterproofing function of the roof is improved, and rainwater can be reliably prevented from seeping in. This is because, in a pair of adjacent roof materials 71, 71, the first engaging portion 81 of the frame material 73 of one roof material 71 is engaged with the second engaging portion 83 of the frame material 73 of the other roof material 71, and a fixing bolt 107 is screwed in from above through the plate material 105, with the tip 107a of the fixing bolt 107 not penetrating through.
Furthermore, by interposing seal members 101, 103 between the first engaging portion 81 and the second engaging portion 83, the waterproof function can be further improved.
In addition, since the recess 85 is provided, rainwater that is not completely prevented from seeping in by the sealing members 101, 103 can be collected in the recess 85, and further infiltration can be prevented. This further improves the waterproof function.
Furthermore, rainwater that accumulates in the recess 85 can be drained by flowing down to the back side along the slope of the roof material 71, eliminating problems caused by rainwater continuing to accumulate in the recess 85.

The present invention is not limited to the above embodiment.
For example, the shapes of the first engagement portion provided at one end of the roofing material and the second engagement portion provided at the other end are not limited to those shown in the figures, and various shapes are possible.
In the above embodiment, one recess is provided in the first engagement portion, but a configuration in which a plurality of recesses are provided is also envisaged.
In the above embodiment, a residential unit house was used as an example of the building, but the present invention is not limited to this and can also be applied to unit houses for purposes other than housing, such as construction site sheds and smoking booths.
It is also applicable to the roof structures of various buildings other than modular houses.
The other configurations shown in the drawings are merely examples.

The present invention relates to a waterproofing structure for roofs, and in particular to a structure designed to reliably prevent the infiltration of rainwater, and is suitable, for example, for the roof structure of a modular house for housing that is installed outdoors.

1. Modular house (building)
REFERENCE SIGNS LIST 3 Frame structure 5 Column material 7 Floor support member 9 Beam material 71 Roof material 73 Frame material 81 First engagement portion 83 Second engagement portion 85 Recessed portion 101 Sealing member 103 Sealing member 105 Plate material 107 Bolt

Claims (6)

In a waterproof roof structure, multiple roofing materials are connected horizontally from the front side to the back side of a building.
A first engaging portion is formed at one end of the roofing material and a second engaging portion is formed at the other end,
In two adjacent roof materials, a second engaging portion of one roof material is overlapped on a first engaging portion of the other roof material;
a plate material is placed on the second engagement portion so as to close a gap between a tip of the second engagement portion and the first engagement portion;
A waterproof structure for a roof, characterized in that a bolt is screwed into the plate material from above, so that the tip of the bolt does not penetrate the first engagement portion. The waterproof structure for a roof according to claim 1,
A waterproof structure for a roof, characterized in that a seal member is interposed between the first engagement portion and the second engagement portion. In the waterproof structure for a roof according to claim 1 or 2,
A waterproof structure for a roof, wherein the first engagement portion is formed with a recess for accommodating the tip end of the bolt. In the roof waterproofing structure according to claim 3,
A waterproof structure for a roof, characterized in that the recess is formed extending in the longitudinal direction of the roof material. In the waterproof structure for a roof according to any one of claims 1 to 4,
A waterproof roof structure characterized in that the roof material is installed with a downward slope from the front side to the back side. In the waterproof structure for a roof according to any one of claims 1 to 5,
A waterproof roof structure, wherein the building is a modular house.

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