JPH0217063Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to the horizontal joint structure of roofing boards, and more specifically, metal plywood is used as the roofing board, and the edge is made longer than the lower board. Roofing that utilizes the non-joint area with the upper plate, sandwiching a heat-resistant elastic sealing material between the edges of adjacent lower plates, and then folding the edges of adjacent upper plates so that they can be joined. Regarding the horizontal joint structure of plates.

[Prior Art] As this type of metal roofing material, galvanized iron plates, colored iron plates coated with paint, copper plates, etc. are used.

When performing ichimonji roofing, which is a typical method of flat roofing using such plate-shaped metal plates, as a horizontal joint, as shown in Figure 1, from the end of the metal plate 1 on the right side, Bend the end edge 2 at a right angle, and create an end edge 4 extending from the end of the left metal plate 3 to a point approximately twice as long as the above-mentioned fixed point.
Bend the metal plate at right angles and butt them together so that the two folded parts touch each other, then fold the edge part 4 in half again so that the edge part 2 is sandwiched between them, and then attach the two edge parts to the metal plate 1.
A so-called seam-folding joint in which the material is bent sideways is generally used.

[Problem that the invention aims to solve] However, with such a joint structure, thermal expansion causes curling, and rainwater enters the interior through the gaps in the joint due to looseness due to the capillary principle, causing the roofing boards to rot. The dot was hot.

In order to eliminate the above-mentioned problems, this idea uses a heat-resistant elastic sealing material to prevent water from flowing toward the roofing board even if a gap is created between at least two roofing boards due to thermal expansion, etc. The purpose is to join roofing boards together by intervening them.

[Means for Solving the Problems] The purpose of this invention described above is to bond an upper metal plate onto a lower plate, make the upper metal plate longer than the lower plate at the end in the length direction, and make the upper metal plate longer than the lower plate. When joining roofing boards with a non-joining zone, install a heat-resistant elastic sealing material between each edge of the adjacent lower board by sandwiching it in the grooves on both sides, covering the upper part of the heat-resistant elastic sealing material and attaching it to the adjacent lower board. This is accomplished by joining the roofing plates together by bending and joining the extending portions of two matching upper metal plates.

[Function] A heat-resistant elastic sealing material is installed by sandwiching the heat-resistant elastic sealing material between the respective edges of the adjacent lower plates in the grooves on both sides thereof, and each extending portion of the two adjacent upper metal plates covers the upper part of the heat-resistant elastic sealing material. By bending and joining the roofing plates together, the heat-resistant elastic sealing material interposed between the edges of the lower metal plates prevents moisture from entering through the bent joints of the upper metal plates due to capillary action. be able to.

[Example] Examples will be described with reference to the drawings.

Figure 2 shows the cross-sectional structure of the roofing board 11 used in this invention.
An upper metal plate 13 made of copper or the like, which has the same width as 2 and is slightly longer than the lower plate 12 in the longitudinal direction, is attached by a certain width from both ends of the lower plate 12 using an epoxy-based synthetic adhesive 14. The roofing board 11 is constructed by making a non-joining band 15 and joining it to form plywood.

When roofing is done using the roofing boards 11 having such a configuration, first the two roofing boards 11a and 11b are arranged in the length direction as shown in FIG. Matching upper metal plates 13a, 13
b extending portions 16a, 16b of lower plates 12a, 12
Bend it upward at the joint end with the lower plate 12a, 12b as shown in Fig. 3c, d.
7b into the grooves 19a and 19b of the heat-resistant elastic sealing material 18 made of heat-resistant silicone rubber, etc., and then
As shown in FIG.
Next, bend the extending portion 16a from the tip of the extending portion 16a at approximately the length of the upright portion as shown by the arrow,
The upright portion is an extending portion 1 as shown in FIG. 3f.
6a and then pushing and bending in the direction of the arrow, the two extending portions 16a and 16b are folded and joined on the packing portion 20 as shown in FIG. 3g.

By this seam folding, the packing part 20 is compressed at both extending parts and snaps onto the periphery to form a seal part A.

Figure 4 shows roofing board 1 using the joint structure of this invention.
1 are joined together to form a roof. Asphalt felt 24 and insulation material 2 are placed on the rafters 23 installed horizontally on the roof beams 22 that intersect with the eaves 21.
After laying the roof beams 22, the fascias 26 attached to the tips of the rafters 22, and the arabesques 27, the roofing boards 11 are laid.
The roof is horizontally elongated, the roofing boards 11 are joined as described above, and the joints A are staggered.

[Effects of the invention] Since this invention is configured as described above, it produces the effects described below.

The heat-resistant elastic sealing material interposed between the edges of the lower plates can prevent moisture from entering through the bent joints of the metal plates due to capillary action.
It is possible to prevent the roof sub-material from rotting, and since it is possible to follow the single-letter roofing method, which is a typical method of conventional flat-board roofing, it has the effect that workability is not impaired.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the structure of a conventional flat plate joint, and Figs. 2 to 4 all show an embodiment of this invention. Cross-sectional views showing the structure; Figures 3a to 3g are explanatory diagrams of the joining procedure using a heat-resistant elastic sealing material between the lower plates and the upper metal plate; Figure 4 is a diagram showing the state in which the roof is covered. FIG. 11... Roofing board, 16a, 16b... Extension portion, 12... Lower plate, 17a, 17b... End edge, 1
3... Upper metal plate, 18... Heat-resistant elastic sealing material,
14...Synthetic adhesive, 19a, 19b...Groove, 1
5... Non-junction zone.

Claims (1)

[Scope of utility model registration request] The upper metal plate 13 is bonded onto the lower plate 12 so that the upper metal plate 13 is longer than the lower plate 12 at the end in the length direction, and a non-bonded zone 15 with the lower plate 12 is formed.
When joining the roofing plates 11, 11 provided with
Attach by sandwiching the heat-resistant elastic sealing material 1 with b.
Two upper metal plates 1 that are adjacent to each other and cover the upper part of 8.
By bending and joining the extending portions 16a, 16b of 3, 13, the roofing plates 11, 11
Horizontal joint structure of roofing boards made by joining similar pieces together.