JP3007226U - Roofing base material - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a roofing base material that does not slip even when it is hot or wet and is not dazzled by sunlight. [Structure] An asphalt layer is formed on one side of asphalt felt, and a film that does not allow asphalt to penetrate is attached to the surface of the asphalt layer, and the film has numerous fine irregularities formed on the surface to make the surface rough. A roof base material characterized by having a matte state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof roof base material.

[0002]

[Prior art]

 Asphalt roofing has been commonly used as a roofing base material. As shown in FIG. 6, this conventional asphalt roofing comprises asphalt coatings 3 and 3 formed on both sides of an asphalt felt 1 obtained by impregnating a base paper with a straight asphalt.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional asphalt roofing, particularly when roofing work is performed when the temperature is high, the asphalt coating on the surface of the asphalt roofing is melted by solar heat and becomes slippery and slippery. This not only significantly reduces the workability of roofing work, but also poses a serious danger such as the worker slipping off the roof. The present invention has been made in order to solve such a problem.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention forms an asphalt layer on one side of an asphalt felt and attaches a film that does not penetrate asphalt to the surface of the asphalt layer, and the film has a large number of fine particles on its surface. The present invention provides a roofing base material, characterized in that it has a matte state by forming irregularities and making the surface rough.

[0005]

[Action]

 The roof substrate (reference numeral 10) according to the present invention is used as shown in FIGS. That is, in FIG. 4, the roof base material 10 is laid on the rafter 9 on the roof via the base plate 11, and the pier 13 is nailed to the roof base material 10, and the roof of roof tiles or the like is attached to the pier 13. The wiping material 15 is locked. Further, in FIG. 5, the roof base material 10 is laid on the base plate 11 ′, and the roofing material 15 ′ is directly disposed on the roof base material 10. In both cases of FIG. 4 and FIG. 5, the roof base material 10 is used with the matte surface of the film exposed to the upper side.

However, in the roofing base material of the present invention, the surface of the asphalt layer formed on one side of the asphalt felt is covered with a film that does not allow asphalt to penetrate, and the asphalt layer is not exposed. . Therefore, when roofing work is performed when the temperature is high, the surface of the roof substrate is sticky and slippery because the surface is covered with a film that does not allow asphalt to penetrate even when the asphalt layer is melted by solar heat. It never happens.

The roofing base material of the present invention is used with the matte surface of the film exposed to the upper side. That is, the film exposed on the upper side has a large number of fine irregularities formed on the surface thereof to make the surface rough. Therefore, the film surface does not become slippery even when the roof substrate is wet with rainwater during roofing work. That is, as shown in FIG. 3, when the footwear 31 of an operator rides on the film 25 that is wet with water, the water on the surface of the film 25 will be the bottom surface 31a of the footwear 31 and the minute recesses 25a on the surface of the film 25. This is because the bottom surface 31a of the footwear 31 comes into direct contact with the fine projections 25b, 25b, ... On the surface of the film 25 as a result of escaping into the gaps 27, 27 ,. By the way, when the surface of the film is a mirror surface, the water on the surface of the film 25 cannot fully escape when the operator's footwear 31 gets on the film which is wet with water. As a result of the bottom surface 31a of the footwear 31 stepping on the film 25 through the water layer, the worker becomes extremely slippery.

Further, since the roof substrate of the present invention has a rough and matte surface of the film, it has an antiglare effect of preventing glare due to reflection of sunlight.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings. Reference numeral 21 is asphalt felt. The asphalt felt 21 is made of paper waste, straw, cloth waste, etc. as a main raw material, and is manufactured in the same manner as ordinary paper, and is made of a slightly thick and porous felt-like base paper in which straight asphalt is infiltrated. An asphalt layer 23 is formed on one side of the asphalt felt 21. The asphalt layer 23 is preferably composed of modified asphalt obtained by adding rubber, resin, oil, etc. to asphalt. This modified asphalt is flexible and can preferably seal nail holes. On the surface of the asphalt layer 23, a film 25 of polyester, polyethylene or the like that does not allow asphalt to penetrate is attached. Then, the film 25 is made to have a matte state by forming a large number of fine irregularities 25a, 25a ..., 25b, 25b ... On its surface and making the surface rough. In order to make the surface of the film 25 in such a matte state, matte printing such as matte printing with matte ink or sandblasting is performed on the surface of the film 25, for example.

[0010]

[Effect of device]

 As described above, in the roofing base material according to the present invention, the surface of the asphalt layer formed on one side of the asphalt felt is covered with the film that does not allow the asphalt to penetrate, so the roofing work is performed when the temperature is high. Even when performing, the surface of the roof base material is not sticky and slippery. Also, since the film exposed to the upper side has many fine irregularities formed on its surface to make it rough, even when the roofing base material is wet with rainwater during roofing work, etc. , The film surface does not become slippery. Therefore, the risk of workers slipping off the sloping roof is prevented and the workability of roofing work is significantly improved. Furthermore, since the surface of the film is rough and matte, the work environment is improved by the antiglare action as described above.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a roof substrate according to the present invention.

FIG. 2 is an enlarged sectional view showing the roof base material of the above.

FIG. 3 is an enlarged cross-sectional view showing the relationship between the footwear of the worker and the film wet with water.

FIG. 4 is a cross-sectional view showing an example of a usage state of the roof base material of the above.

FIG. 5 is a cross-sectional view showing another example of the usage state of the roof base material of the above.

FIG. 6 is a cross-sectional view showing a conventional roof base material.

[Explanation of symbols] 1 Asphalt felt 3 Asphalt coating 9 Tarpaulin 10 Roofing base material 11 Field plate 11 'Field plate 13 Pier 15 Roofing material 15' Roofing material 21 Asphalt felt 23 Asphalt layer 25 Film 25a Recess 25b Convex portion 27 31 Footwear 31a Bottom

Claims (1)

[Scope of utility model registration request] 1. An asphalt layer is formed on one side of an asphalt felt, and a film that does not allow asphalt to penetrate is attached to the surface of the asphalt layer, and the film has a large number of fine irregularities formed on the surface to roughen the surface. A roof base material characterized by being made matte by