JPH0328091Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roofing material, and particularly to a roofing material that prevents rainwater from leaking from the hanger fixing portion.

Recently, buildings have become noticeably larger, and naturally large roofs are being formed. The steeper the slope of this large roof, the higher the ridge, which increases the construction cost of the roof structure, so the slope of the large roof must be lowered. Roofs with low orientation are always prone to leakage due to rainwater seeping through the seams of the roof panels, which is a source of concern. For example, as shown in FIG. 1, when roof plates 2, 2 are installed on a roof base material 1, the hook engaging portion 3a of the hanger 3 is fitted into the hook portion 2a, and the base of the hanger 3 is fitted. The end portion is fixed to the roof base material 1 with a fixing member 4 such as a nail or bolt. When the wind and rain are strong, the outside pressure and capillary action combine to cause rainwater to infiltrate inward, and the rainwater that has reached the hanger 3 travels through the fixing member 4 and its holes, seeping under the roof base material 1 and leaking through. I had a difficult time causing this. In order to solve this problem, a method has been taken in which the head of the fixing member 4 is soldered to the hanger 3, but soldering is not only time-consuming. The problem is that there is no play. That is, the roof sheet 2 expands during the hot summer season. For that purpose, goby section 2
a. If there is any play in the fixed parts of the hanger 3, the expansion will be absorbed somewhere, but if there is no play, the roof sheet will bulge upwards due to the expansion, causing undulations, sagging, etc. There are difficulties that arise.

The present invention was devised with the aim of solving these difficulties and providing a roof base material that does not have to worry about rain leaks.The structure is such that a locking hole is formed in the hanger fixing part of the roof base material made of metal. It is characterized by the formation of a ring-shaped convex hill surrounding it.

According to the present invention having the above configuration, the ring-shaped convex hill is formed in the hanger fixing part of the roof base material so as to surround the locking hole in which the fixing member is fitted, so that rain water that has penetrated from the ridge part Since the rainwater does not rise up this annular convex hill, rainwater does not leak downward from the fixing member or its locking hole.

Examples of the present invention will be described below. Figure 2 and the following are related to the present invention; Figure 2 is a perspective view of the roof base material; Figure 3 is a perspective view of the roof base material;
The figure is a sectional view taken along the line A-A in FIG. 2, and FIG. 4 is a sectional view showing the state of use.

The roof base material 5 is made of a copper plate and has protrusions 5 in the longitudinal direction.
It is a long plate with a rectangular cross section and has a rectangular cross section, and on the upper surface of the protrusion 5a, hanger fixing parts 5b are provided at regular intervals in the longitudinal direction, and hanger fixing members 6 such as nails or bolts are fitted. A locking hole 5c is formed, and an annular convex hill 5d is press-formed around the locking hole 5c.

According to the present invention having the above-mentioned configuration, as shown in FIG.
By fixing it with the fixing member 6, even if rainwater leaks from the seam part 7a and travels on the base material 5, since the annular convex hill 5d is raised, the rainwater will flow through the annular convex hill 5d. Fixed part 5b surrounded by 5d
This has the effect of preventing rainwater from leaking below the base material 5 through the locking hole 5c and the fixing member 6.

Note that the present invention is not limited to the above configuration. The roof base material 5 is not a copper plate but a general steel plate,
It may be made of any material such as stainless steel or synthetic resin, and may be a flat plate or a corrugated plate. The shape of the annular convex hill 5d may be circular, triangular, patterned or other arbitrary shape. Further, although the hanger 6 has an annular convex ridge matching the annular convex ridge 5d formed at its base end in FIG. 4, a normal hanger may also be used.

[Brief explanation of the drawing]

Figure 1 is a sectional view of another base material, Figure 2 and the following are related to the present invention, Figure 2 is a perspective view of the roof base material, Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is used. A sectional view showing the state. 5... Roof base material, 5a... Projection, 5b... Hanging clip fixing part, 5c... Locking hole, 5d... Annular convex hill,
6...fixing member, 7...roof plate, 8...hanger.

Claims (1)

[Scope of utility model registration request] A roof base material comprising a metal roof base material, and a ring-shaped convex hill surrounding a locking hole is provided in a hanger fixing part of the roof base material.