FI74102B - TAKSPAON. - Google Patents

Description

ROOF PANEL - TAXI

74102 The present invention relates to a tile for covering the roofs of buildings, which tile is a thin, substantially rectangular unitary body when viewed from above, preferably about 5-15 cm wide and about 40-70 cm long, with ends of different thicknesses and a lower surface substantially planar.

Existing shingles are usually made of cedar wood. They are wedge-shaped so that one end of the tile is thicker than the other. The length of the tiles is usually about 50 cm and the width about 10 cm. Shingles are used in gabled buildings and are installed on the ceiling side by side and partially on top of each other. Nails are used for fastening. The thicker end of the tile faces down when mounted on the ceiling and the thinner end points up.

Although cedar shingles have a very pleasing appearance, some countries, such as the United States, where extensive forest and scrub fires are common, are considering banning their use in buildings because of their poor fire safety. Recently, efforts have been made to produce various ·; mineral-based shingles imitating cedar shingles with an order of magnitude better fire resistance. However, there is still a relatively high weight in these, which is why the roof support structures need to be strengthened, which is why it is desired to replace the old cedar roof with a more fireproof roof. In addition, the problem with a roof made of traditional wedge shingles is poor sealing between the shingles.

The object of the present invention is to provide a roofing tile which does not have the above-mentioned problems and which is highly fireproof. The tile according to the invention is characterized in that the tile comprises, at the thicker end, a wedge-like tapered tip portion and a substantially constant thickness end portion.

A preferred embodiment of the invention is characterized in that the length of the wedge-shaped tip part is about 1/3 of the total length of the tile.

Another preferred embodiment of the invention is characterized in that a cement chipboard is used as the tile material.

The most important advantages of the invention are the more compact roof structure, because the sealing between the individual tiles has been considerably improved. In addition, the structure is as light and fire-safe as possible. The appearance of a tile made of cement chipboard is similar to that of a traditional tile made of cedar wood. The production of the tile according to the invention is as easy as the wedge-shaped one, because it can be made by a pressing technique.

In the following, the invention will be explained in detail with reference to the accompanying drawing, in which

Fig. 1 is a perspective view from above of the roof tiling.

Fig. 2 shows a side view of partially overlapping, known tiles.

Fig. 3 shows the same as Fig. 2, but now tiles according to the invention have been used.

Fig. 4 shows an enlarged side view of an oaan according to the invention, in which the shape of the current tile is also marked with a broken line.

74102 3

Figure 1 shows how the roof is tiled. The tiles are marked with reference number 1. They are about 50 cm long and 10 cm wide, thin pieces with different thicknesses. The thickness of the thicker head is about 1.6-2.0 cm and the thickness of the thinner head is approx.

0.9-1.0 cm. Traditionally, they are made of cedar wood, which gives the roof a favorable appearance. The shingles according to the present invention are made of cement chipboard by pressing and their appearance corresponds to the appearance of shingles made of cedar wood. The lower surface of the tiles 1 is substantially planar and is placed against the roof. For example, a roofing felt 2 can be inserted to improve the tightness. The installation of the tiles begins at the point where the eaves proceed, so that the upper tile is always partially placed on top of the lower tile. The tiles are attached to the roof structure by nailing.

Figure 2 shows a side view of a part of a finished tile roof made of known tiles 1. The known tiles are wedge-shaped in shape and are mounted on the ceiling with the thicker end facing downwards. As can be seen from Figure 2, there is a gap between the overlapping tiles which is difficult to seal. The upper tile loads the lower tip in a linear manner.

Figure 3 shows a part of a tile roof according to the invention. It can be seen that the shingles condense against each other over a much larger area than before, which not only means that the compaction is more efficient, but also that the load distribution is more favorable. Still, the roof looks essentially outwardly like previous tile roofs.

Figure 4 shows the structure of the tile 1 according to the invention in a larger size compared to the previous figures. The tile according to the invention has a wedge-shaped tip portion 3 tapering towards the center of the tile at a thicker end 4 74102 and a substantially constant thickness end portion 4. The ratio of the lengths of the tip portion 3 and the end portion 4 can of course be determined as required, but one suitable dimension is about 1 / 3 for the entire length of 1 tile.

Figure 4 also shows a dashed wedge-shaped shape of a conventional tile. Comparing these shapes, it is found that the tile according to the invention achieves considerable savings in material costs. Because less material is required, the weight is also lower. Cement chipboard is used as the manufacturing material for the shingles according to the invention. Among other things, FI patent 41359 discloses a material suitable for this purpose and its manufacture. The shape of the tile according to the invention is easily obtained by pressing in a mold, in fact as easily as the traditional wedge-shaped shape, so that the manufacturing costs do not increase in this respect either.

It will be clear to a person skilled in the art that the invention is not limited to the above-mentioned embodiment, but can be varied within the scope of the appended claims.

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Claims (3)

74102 A shingle (1) for covering the roofs of buildings, which shingle is a thin, substantially rectangular unitary body when viewed from above, preferably having a width of about 5-15 cm and a length of about 40-70 cm, with different thicknesses and a lower surface substantially planar, characterized in that the tile (1) comprises, at the thicker end, a wedge-thinning tip portion (3) as seen from the side and a substantially constant-thickness end portion (4). Tile according to Claim 1, characterized in that the length of the wedge-shaped tip part (3) is approximately 1/3 of the total length of the tile (1). Tile according to Claim 1 or 2, characterized in that a cement chipboard is used as the manufacturing material of the tile (1).