JPS5811857Y2 - sheet roof tiles - Google Patents

Description

[Detailed explanation of the idea] This idea relates to the improvement of plate-shaped roof tiles.

Generally, plate-shaped roof tiles etc. using asbestos-cement boards etc.
There is a problem in that rainwater infiltrates through the overlapped portions of roof tiles due to capillary action.

For this reason, as shown in Fig. 1, sawtooth drainage grooves 1' are provided on the surface of the roof tile portion S covered by the upper roof tile, and in the valleys 11' facing the eaves of the sawtooth grooves 1', It has been proposed to communicate the drainage ditch 2' extending toward the eaves.

In this roof tile, rainwater that has entered the overlapped part of the roof tiles by capillary action is captured by the sawtooth drain groove 1', flows down into the valley 11' of the sawtooth drain groove 1', and then flows into the drain groove 2. The water is drained from '.

However, in the above-mentioned roof tile, during strong winds and rain, rainwater easily flows through the drain groove 2' and enters into the serrated drain groove 1', and this infiltrated water easily ascends in the drain groove 2'. There is a concern that there is a large amount of rainwater that could easily overflow the serrated drainage grooves 1'.Also, if it overflows, this rainwater will rapidly spread through the overlapped roofing area due to capillary action and will infiltrate. This caused problems such as causing rain leaks.

In view of the above, this invention was made with the aim of providing a plate-shaped roof tile that can effectively prevent rainwater from entering into the overlapped part of the roof tile, and is a superior roofing material to plate-shaped roofing materials. Multiple rows of triangular wave-shaped drain grooves are provided on the covered surface, and the upper and lower rows of drain grooves are provided in a non-conducting state, and the top row of triangular wave-shaped drain grooves is connected with drainage grooves that extend upward. It is characterized by being provided as follows.

Next, this invention will be explained using examples.

FIG. 2 is a plan view of an embodiment of this invention.

The plate-shaped roof tile A of this invention is a plate-shaped roofing material made of asbestos cement board or the like, and an upper roofing material (not shown) is overlaid on the S portion.

The surface covered by the upper roofing material has triangular wave-shaped drainage grooves I.
A, I B, and I C are provided in multiple rows, and the upper and lower rows of drain grooves are provided in a non-communicating state, and furthermore, the uppermost row of triangular wave-shaped drain grooves 1A is connected to a drainage groove 2 extending upward. It is provided.

In the above embodiments, the exposed surface portion of the plate roofing material A is a flat surface or a surface with a wood grain-like uneven pattern.

In the above, rainwater that flows up along the exposed surface during strong winds and rain is captured by the triangular wave-shaped drainage grooves 1C in the lowest row and accumulates there.

At this time, since the drain groove 1C□ has a triangular wave shape like other drain grooves, even if rainwater enters the drain groove 1C,
It stays in the valley 1C.

On the other hand, the upper and lower rows of drainage grooves IA, IB, and IC are not connected to each other, so unless the bottom row of drainage grooves 1C overflows with rainwater, rainwater will enter the upper row of drainage grooves IA and IB. Never.

Therefore, it becomes very difficult for rainwater to flow from the lower row of triangular wave-shaped drainage grooves 1C to the upper row of triangular wave-shaped drainage grooves 1A.

Furthermore, even if rainwater enters the top row of drain grooves 1A, since the upwardly facing drain grooves 2 are provided above the top row of drain grooves 1A in a communicating state, the rainwater will spread widely into the overlapped roofing area S. Penetration is prevented.

Since this invention is constructed as described above, it is possible to reduce the infiltration of rainwater under strong winds and rain compared to the plate-shaped roof tiles shown in Figure 1, and the rainwater that infiltrates due to capillary action can be spread over the overlapped part of the roof. It has various practical effects, such as being able to advantageously prevent stagnation.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a conventional plate-shaped roof tile, and FIG. 2 is a plan view of an embodiment of this invention. A...Plate roof tile, S...Overlapping roofing part, 1A, 1B, IC...triangular wave-shaped drain groove, 2...Drain drain groove .

Claims (1)

[Scope of utility model registration request] Multiple rows of triangular wave-shaped drainage grooves are provided on the surface covered by the upper roofing material of the sheet roofing material, and the upper and lower rows of drainage grooves are provided in a non-communicating state, and the uppermost row of triangular wave-shaped drainage grooves is provided with an upper A plate-shaped roof tile characterized by being provided with a drainage gutter extending in communication with the drain groove.