JP2001146819A - Roof material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof material easy to align and cut and good in appearance. SOLUTION: A pair of right and left cut-through recessed portions 5 are formed in positions on, at least, the eaves end face 1A of the roof material 1 and a marking protruded portion 6 is formed between the recessed portions 5. Since a marking on the roof material 1 is in a cut-through form passing from the surface to the reverse and has the cut-through recessed portions 5 formed at both sides to permit easy visual observation of the protruded portion 6 as the marking, easy alignment is ensured even when the surface is coated in black. In cutting the roof material 1 by a cutter or others, cracking hardly occurs because the protruded portion 6 is in a protruded shape and has a plane portion 6A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roofing material having a mark for positioning and cutting at least on the eaves end face.

[0002]

BACKGROUND OF THE INVENTION In general, a positioning mark is provided on a roofing material in order to facilitate positioning when roofing. When the roofing material is laid in the corner of the ridge, it is sometimes necessary to cut the roofing material. In this case, the alignment mark is also used as a cutting mark.

[0003]

2. Description of the Related Art Conventionally, as a positioning mark or a cutting mark, a V-shaped cutout (24) shown in FIG. 5 or FIG. The mark (34) cut out in a semicircular shape as shown in the figure or the eave tip surface is a pair of left and right bias cut surfaces (41A, 41A) as shown in FIG. 7, and the thickness h between the bias cut surfaces (41A, 41A). There is provided an alignment mark (44) provided with a projection shape within a range of width l (Japanese Patent Laid-Open No. 8-105160).
issue).

[0004]

However, since the V-shaped mark (24) shown in FIG. 5 has an acute corner, it is easy to crack, and the semicircular mark (34) shown in FIG. )
Has the drawback that it is difficult to obtain an accurate center point, and furthermore, because the marks are cut through, they are more conspicuous from the outside and impair the appearance. A mark (44) provided with a projection shape within the range of its thickness h and width 1 on the bias cut surface (41A) shown in FIG.
(44) The tip and the tip edge (1A) of the roofing material (1) match,
Mark (44) when viewed from above, especially in black finish
However, there is a problem that the position of the mark (44) is difficult to be recognized. Further, there is another problem that the protruding portion is easily damaged.

[0005]

According to the present invention, at least the eaves end face (1A) is provided as means for solving the above-mentioned conventional problems.
Form a pair of left and right through concave curved parts (5) at predetermined locations of
The present invention provides a roofing material (1) in which a convex portion (6) for a mark is formed between the concavely curved portions (5). Width W ₂ of the recess curved portion (5) embedding the curved shape of the are at depth d3mm less width w ₁ 10 mm or more and the convex portion (6) is desirably less than 3mm.

[0006]

The cut mark of the roofing material (1) of the present invention is a cut-out notch from the front surface to the back surface, and the cut-off concave portion (5) is formed on both sides, so that the protrusion mark as a mark is formed. Since the portion (6) is conspicuous, positioning is easy even when the surface is painted black. Further, when the roof material (1) is cut with a cutter or the like, cracks are unlikely to occur because the convex portion (6) has a protruding shape and has a flat portion (6A).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in FIGS. Roofing material shown in Fig. 1
(1) is manufactured by molding or cutting a wood cement board or the like, and has a main part (2) having a substantially rectangular shape;
A root end having a substantially trapezoidal shape following the rear end of the main part (2)
The main part (2) has a pair of cut-out concave curved parts (5) at the center of the eaves end face (1A) and a convex part between the concave curved parts (5).
(6) The mark is formed. Furthermore, the alignment marks (7A, 7B) with triangular notches and the center of the surface of the roofing material (1) are also located at the left and right ends of the main part (2) and the center of the eaves ridge end face of the root end (3). Has a center mark (8).

[0008] concave curve portion as shown in FIG. 2 (5) curved surface of the depth d is less than 3mm embedding its an arc shape (e.g., 2 mm) in the left-right width w ₁ is 10mm or more, preferably 100mm
Below (for example, 16 mm) and the width w ₂ of the projection (6) is 3 m
m or less (for example, 3 mm). The tip of the convex portion (6) is a flat portion (6A). With such a shape and dimensions, the bite depth dimension and the flat surface (6
A) The projection (6) becomes less noticeable due to the balance with the length. Further, since the left and right width w ₁ than the depth d is substantially greater, the concave portion (5) is inconspicuous in appearance state after roofing construction.

As shown in FIG. 3, the roofing material (1) of the present invention has the front half of the roofing material (1) of the rear row superimposed on the rear half of the roofing material (1) of the front row, and the front row and the rear row are connected. 1 / one of the width of the roofing material (1)
When the roofing material in the back row (1) is overlaid on the roofing material in the front row (1), the vertical alignment is performed using the marks (7A) and (6), and the horizontal positioning is performed using the mark (7B). Perform direction alignment.

In the case of the roofing material (1) of the present invention, the mark (6) on the eaves tip surface (1A) side which is exposed to the outside and is directly exposed to wind and rain.
Is a convex part sandwiched between concave parts (5) on the left and right as described above.
(6) The roof has a very good appearance with no discomfort at the eaves tip. Since the marks (7A, 7B) are concealed by the roofing material (1) in the rear row, they can be notched.

To manufacture the above roofing material (1), for example, cement powder such as portland cement, blast furnace cement, silica cement, fly ash cement, alumina cement, etc. may be used, for example, silica powder, silica sand, silica stone powder, water glass, silica Fume, mica, diatomaceous earth, dolomite,
Siliceous materials such as fly ash and blast furnace slag,
Pozzolanic materials such as light furnace slag, fly ash, diatomaceous earth, clay, etc., for example, woody materials such as wood flour, wood wool, wood chips, wood fibers, wood pulp, wood fiber bundles, strands, synthetic fiber materials, and inorganic fiber materials A raw material mixture is prepared by mixing fiber reinforcing materials such as

A wet method for forming a sheet by forming a slurry obtained by dispersing the raw material mixture in water, or supplying the raw material mixture in a layered form onto a molding belt, and then pressing with a roll to form a mat. The sheet or mat is formed by a dry method or an extrusion method in which a kneaded material obtained by kneading the raw material mixture and water is extruded into a plate shape from an extruder.

After the sheet or mat formed by the above method is pressed or pressed and cured and cured, it is cut into a predetermined shape, or cut into a predetermined shape and then pressed or pressed and cured after curing.

The mark (6) of the present invention is also used for positioning when cutting roof material. In this case, mark (7A) and mark are placed at the center of the roofing material (1) as shown in Fig. 4.
Roof material cutting machine (single cutter) using (6) as a mark (10)
By cutting.

In the present invention, the shape of the roofing material is not limited to the above-mentioned embodiment. For example, the shape of the roofing material can be applied to any flat or rectangular roof, curved or corrugated roofing, and the material is ceramic. , Metal or the like.

[0016]

Since the marks of the roofing material according to the present invention are cut-through, even if the surface is painted black in particular, it is easy to visually recognize and the alignment is easy. In addition, since the convex portion has a flat portion at the time of cutting, it is difficult to crack, and therefore, it is easy to cut accurately. Furthermore, since the mark which is the convex portion of the present invention is sandwiched between the left and right concave portions, when the roof is laid, there is no sense of incongruity at the tip of the eave and the appearance is not spoiled. In particular, the depth of the concave shape is less than 3 mm and the width is 10 mm.
When the width of the projections is set to 3 mm or less, the influence on the appearance is further reduced. Further, since the tip of the projection is not acute, it is hardly damaged during transportation and storage.

[Brief description of the drawings]

 1 to 4 show one embodiment of the present invention.

FIG. 1 is a plan view

FIG. 2 is an enlarged plan view of an alignment mark portion.

FIG. 3 is an explanatory view of a roofing state.

FIG. 4 is an explanatory view of a cutting state.

FIG. 5 is a perspective view of a conventional example.

FIG. 6 is a perspective view of another conventional example.

FIG. 7 is a perspective view of still another conventional example.

FIG. 8 is a plan view of the conventional example of FIG. 7;

[Explanation of symbols]

1 Roofing material 1A eave tip surface 5 Concave curved part 6 Convex part d Depth w _1,2 width

Claims (2)

[Claims] 1. A roofing material having a pair of left and right cut-through concave portions formed at least at predetermined positions on the eave tip surface, and a convex portion for a mark formed between the concave curved portions. 2. The concave portion has a depth of 3 mm.
The roofing material according to claim 1, wherein the width is 10 mm or more and the width of the projection is 3 mm or less.