JP2532743Y2 - Tarpaulin - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof sheet used for connecting parts of roofing materials (tiles, panels, etc.).

[0002]

2. Description of the Related Art In general, at the time of roofing construction, a connection portion such as a roof tile or a roof panel is provided on an asphalt roofing 14 stretched on a field board 13 as shown in FIG.
A waterproof sheet 11 is laid in the roof flow direction, and the facing end of the roof tile 15 is placed thereon.

Conventionally, as shown in FIGS. 4 and 5, the waterproof sheet 11 has a flat band-like shape made of an elastic material such as rubber and has a plurality of drain grooves 12 extending longitudinally on an upper surface thereof. Have been.

[0004]

Since the conventional waterproof sheet 11 has a flat upper surface, the waterproof sheet 11 is provided with an asphalt roofing 14 stretched on a base plate 13.
When the roof tile 15 is placed on the roof tile, the lower surface of the adjacent end of the roof tile 15 rises from the upper surface of the waterproof sheet 11 and does not adhere as shown in FIG. The rainwater flowing over the adjacent groove 12 leaked water and could not fully exhibit the waterproof function, it was not fit well, and there was a problem that the worker stepped on the adjacent edge of the roof tile 15 and cracked .

The present invention has been made in view of the above-mentioned situation, and aims at improving the adhesion between the waterproof sheet and the roofing material, preventing the roofing material from rising and stepping cracks, An object of the present invention is to provide a waterproof sheet capable of improving waterproofness and fitting.

[0006]

In the present invention, the following technical measures have been taken in order to achieve the above object. That is, the present invention is a strip-shaped waterproof sheet comprising an elastic material such as rubber and having a plurality of drainage ridges extending in the longitudinal direction on the upper surface, wherein the upper surface of the drainage ridge is located at a central portion in the sheet width direction. It is characterized in that it is an inclined surface that descends toward both ends from.

[0007]

According to the present invention, since the upper surface of the drainage ridge of the waterproof sheet is formed as an inclined surface descending from the center in the width direction toward both ends, the lower surface of the end of the roofing material is the upper surface of the drainage ridge. Since it does not adhere to the surface and does not float, water leakage can be prevented, and cracking does not occur even when an operator or the like steps on it.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a waterproof sheet, which is formed in a strip shape from an elastic material such as rubber, and has a plurality of drainage ridges 2 provided on an upper surface in a longitudinal direction, and a central portion in a width direction has a wavy shape. ing.

The ridge 2 has an inverted L-shape in cross section except for both ends in the width direction, and the tip 2A is directed to the center in the width direction, and the upper surface 2B of each ridge 2 is positioned at the center in the width direction. It is an inclined surface descending from the part toward both ends. As shown in FIG. 3, an asphalt roofing 4 is stretched on a base plate 3, and a waterproof sheet 1 is placed on the roofing 4 in a roof flow direction so as to be located below an adjacent end of a roof tile 5. After laying, when the roof tile 5 is placed on the waterproof sheet 1, the draining ridge 2 of the waterproof sheet 1 is relatively easily bent at the tip 2A side and the upper surface 2B is inclined. It fits tightly on the lower surface and fits comfortably without lifting.

[0010] According to the above embodiment, since the draining ridge 2 except for both ends in the width direction has an inverted L-shaped cross-sectional shape, flexibility is imparted and adhesion to the roof tile 5 is further improved. At the same time, the rainwater is prevented from overflowing outward in the width direction of the waterproof sheet 1, and the waterproofness is increased. The present invention is not limited to the above embodiment, for example,
Can be made substantially T-shaped and the upper surface can be inclined, and the ridges 2 at both ends in the width direction can of course have the same cross-sectional shape as the other ridges 2.

[0011]

As described above, the present invention is a strip-shaped waterproof sheet made of an elastic material such as rubber and provided with a plurality of drainage ridges extending on its upper surface in the longitudinal direction. The upper surface of the waterproof sheet is characterized by being inclined from the center in the sheet width direction toward both ends, so that the upper surface of the waterproof sheet can be in close contact with the lower surface of the roof material, and therefore Floating can be prevented, the fit can be improved, and waterproofness can be improved and foot cracks can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal end view showing an embodiment of the present invention.

FIG. 2 is an upper plan view of FIG. 1;

FIG. 3 is a cross-sectional view showing a state of installation on a roof.

FIG. 4 is a plan view of a conventional example.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a cross-sectional view showing a state of laying on a roof in a conventional example.

[Explanation of symbols]

 1 Waterproof sheet 2 Drain ridge 2B Upper surface

Claims (1)

(57) [Scope of request for utility model registration] 1. A strip-shaped waterproof sheet made of an elastic material such as rubber and provided with a plurality of drainage ridges extending in the longitudinal direction on an upper surface, wherein the upper surface of the drainage ridge is positioned from a central portion in the sheet width direction. A waterproof sheet characterized in that the inclined surface is inclined toward both ends.