JP3121522B2 - Roofing material and its roofing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roofing material, and more particularly to a roofing material body having a eave-side hanging piece and a ridge-side rising piece in a flat-shaped roofing material body. Related to a feeling roof material.

[0002]

2. Description of the Related Art Conventionally, a flat roofing material formed mainly of cement has been used.

However, as shown in FIG. 9, when such a roofing material is laid, a three-dimensional appearance cannot be obtained due to the thin plate thickness as shown in FIG. It is. In addition, it is difficult to form the overlapping piece 4 on the side, increase the overlap, and reduce the number of exposed portions 8, so that the roof must be laid. In the example of this figure, the exposed portion 8 is about 1/3 of the whole. To remedy these drawbacks,
(B) As shown in FIG.
Another problem arises in that it becomes heavier.

Therefore, as shown in the side view of FIG. 10, the eave-side hanging piece 1 and the ridge-side rising piece 2 are connected to a flat roof material body 3.
Roofing materials for the future are also conceivable. In addition, it is also considered to form a stacked piece 4 that hangs down and extends substantially horizontally on one side of the roofing material main body in such a roofing material. In such a roofing material, a thick appearance is obtained by the eave-side hanging piece 1, and the waterproof property is improved by the overlapping piece 4, and the roofing material can be laid with less overlap. Therefore, although it is lightweight, it is laid with a solid appearance and a heavy appearance.

[0005]

However, in the roofing material shown in FIG. 10 described above, the lower end of the eave-side hanging piece 1 is in contact with the roofing material that is laid below, and The side back surface 4a is in contact with the roof base 10, and is supported at these two points. Therefore, the other side where the overlapping piece 4 is not formed is in a floating state and is unstable, and has a low strength, which may cause a problem such as a step crack at the time of roofing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to form an eave-side hanging piece and lay it so that it is light and has a three-dimensional appearance. It is an object of the present invention to provide a roofing material which is less likely to cause stepping cracks and a roofing structure thereof.

[0007]

According to the first aspect of the present invention, there is provided a roof material comprising a flat roof material body 3 having an eave-side hanging piece 1 and a ridge-side rising piece 2. In a roofing material formed by forming a lapping piece 4 hanging downward and further extending substantially horizontally on one side of the roofing material main body 3, a ridge-side back surface 4a of the lapping piece 4 and the roofing material main body at the time of roofing The third ridge side back surface 3a is formed so as to be in contact with the roof foundation 10.

According to a second aspect of the present invention, in the first aspect of the present invention, a substantially central portion of the ridge-side rising piece 2 is cut out, and the overlapping piece 4 of a roof material that is laid on the roof is inserted. It is characterized by being formed as the gap 5.

According to a third aspect of the present invention, there is provided a roofing structure using the roofing material according to any one of the first to second aspects, wherein a gap between the roofing material and the roof base is provided. The configuration is characterized in that a backup material 6 is provided.

A fourth aspect of the present invention is characterized in that, in the third aspect of the invention, a groove 7 is formed in the backup material 6 so as to coincide with the flow direction of the roof.

[0011]

According to the first aspect of the present invention, the ridge-side back surface of the overlapping piece 4
4a and the ridge side back surface 3a of the roofing material body 3
It is laid so that it touches 10. In addition, the lower end of the eave-side hanging piece 1 is in contact with a roof material laid downward. Therefore, in addition to the above-mentioned two places, it is supported at three places with the lower end of the eave-side hanging piece 1, is stabilized on the roof foundation 10 without rattling, and the strength against stepping cracks and the like is improved.

According to the second aspect of the present invention, it is possible to lay the overlapping pieces 4 of the roof material, which are laid on top of each other, in a state where they are inserted into the insertion gaps 5 without any step. In other words, the zigzag roof can be staggered in a half-shifted manner so that the side edge of the roof material to be overlaid is almost at the center in the width direction of the lower roof material.

According to the third aspect of the present invention, the roofing material is supported by the backup material 6 to improve the strength against stepping cracks and the like, and the backup material 6 compensates for the thickness of the roofing material and improves the heat insulation.

According to the fourth aspect of the present invention, the groove 7, which coincides with the flow direction of the roof, serves as a gap communicating vertically, and serves as a flow path for air or rainwater, so that moisture hardly collects and drainage is improved.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.

A roof material according to a first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a roofing material in this embodiment, and FIG. 2 is a side view showing a roofing state of the roofing material. FIG. 2 shows a state in which the roof is cut off and the roof material is viewed from the side.

As shown in these figures, this roofing material is:
An eave-side hanging piece 1 and a ridge-side rising piece 2 are provided on a flat roof material body 3, and one side of the roof material body 3 hangs downward and further extends substantially horizontally. Is formed.

Such a roofing material is an inorganic cement board formed by molding and curing a material containing cement as a main component and appropriately adding various fillers such as aggregates and reinforcing fibers. However, other materials such as clay-based materials and metal-based materials may be used.

When the roofing material is roofed, the ridge-side back surface 4a of the overlapping piece 4 and the ridge-side back surface 3a of the roof material body 3 are
It is formed so as to be in contact with the roof foundation 10.

That is, since the roofing material is laid such that the lower end of the eave-side hanging piece 1 abuts on the roofing material which is laid downward, the roof-side back surface 4a of the overlapping piece 4 and the roofing material 1 Body 3
It is supported and roofed at a total of three locations, with two locations on the ridge side backside 3a. In other words, it is supported at the above three places, it becomes a thick and thick roofing state by the eave side hanging piece 1, and it is stable on the roof foundation 10 without rattling while being a thin and lightweight roofing material, It has improved strength against stepping cracks and the like.

When the roofing material is laid, it is preferable to lay the roofing material so that the side end of the roofing material which is superimposed on the roofing material forms the same straight line as the side end of the lower roofing material. That is, by such a roofing state, the overlapping piece 4 can be formed up to a position close to the eave-side hanging piece 1, and a sufficiently large overlapping margin can be provided.

A roof material according to a second embodiment will be described with reference to FIGS. FIG. 3 is a perspective view of a roofing material in this embodiment, and FIG. 4 is a perspective view showing an appearance of a part of a roof on which the roofing material is laid.

As shown in FIG. 3, the roofing material of the first embodiment is a roofing material which is cut off at a substantially central portion of the ridge-side rising piece 2 and laid on the roofing material. Pile 4
The insertion gap 5 of FIG. In other words, the overlapping pieces 4 of the roof material that are laid on top of each other can be inserted into the insertion gaps 5 and laid without steps. Therefore, as shown in FIG. 4, it is possible to perform a zigzag roof that is shifted halfway so that the side end portion of the roof material to be overlapped is almost at the center in the width direction of the lower roof material. Moreover, in particular, the overlapping piece 4
Are formed so as to fit each other so as to be inserted and fitted into the insertion gap 5, so that they can be positioned firmly and a stable roofing state with little unevenness can be obtained.

In the roofing material of the first embodiment,
Such a staggered roofing can be performed, but in this case, the overlapping piece 4 becomes an obstacle, or it becomes difficult to form the overlapping piece 4 to a position close to the eave-side hanging piece 1, and the overlapping margin Therefore, the waterproofness tends to be imperfect.

The assignment of the roof material to the entire roof surface will be described with reference to FIGS. These figures show the case of the above-mentioned staggered roof. 5A and 5B show the case of a gabled roof, wherein FIG. 5A is a perspective view of the entirety, and FIG. 5B is a cross-sectional view cut in a horizontal direction. FIG. 6 is an overall perspective view in the case of a corner building.

As shown in FIG. 5, in the case of a gabled roof, a keraba material 11 is arranged on both sides to be laid. If the roofing material does not fit perfectly horizontally, A or B in the figure
The width of the roof material is adjusted. In other words, the roof material is cut while leaving the overlapped portion 4 of the roof material, and used as a narrow A or B roof material. Also, in this case,
The roofing material is laid from the left side of the figure, and finally the width is adjusted by the roofing material of B at the site. In addition, in the case of the corner building of FIG.
As in the case of FIG. 5, the width is adjusted with the roof material C in the figure.

The roofing structure of the above-described roofing material will be described with reference to FIGS.

FIG. 7 is a perspective view showing a backup material 6 which can be used when the above-mentioned roof material is laid, and FIG. 8 shows a roof laid using the backup material 6. It is sectional drawing.

In FIG. 7 or FIG. 8, reference numeral 6 denotes a backup material, which is disposed in a gap between the roof material and the roof base 10. The backup material 6 is formed of various materials having a lower specific gravity than the roof material, such as a synthetic resin material such as urethane foam and an inorganic material such as lightweight cement. The back-up material 6 has grooves 7 on both the front and back surfaces that match the flow direction of the roof. In addition, there is a concave portion 8 in which the upper end of the eave-side rising piece 2 of the roofing material arranged and laid down is locked.

According to the backup material 6, the roof material disposed thereon is supported to improve the strength against stepping cracks and the like, and the backup material 6 also compensates for the thickness of the roof material to improve heat insulation. improves. In addition, the backup material 6 has a lower specific gravity than the roof material, and the roof is laid relatively lightly.

The groove 7 that coincides with the flow direction of the roof forms a gap communicating vertically, and air or rainwater easily passes through this gap, making it difficult for moisture to collect and improving drainage. In this embodiment, the grooves 7 are formed on both the front and back surfaces to improve air permeability in particular. However, in some cases, the grooves 7 may be formed only on the front surface or the back surface.

[0032]

According to the first aspect of the present invention, the roof is laid in a state where it is supported at three places: the back side of the ridge side of the overlapping piece, the back side of the ridge side of the roofing material main body, and the lower end of the eave side hanging piece. can do. Therefore, thick roofing with a feeling of thickness is made,
Moreover, while being a lightweight roofing material, the roofing can be laid in a stable state, and the strength against foot cracks and the like has been improved.

According to the second aspect of the present invention, the zigzag roof is shifted halfway so that the insertion gap causes the side edge of the roofing material to be superimposed to be approximately at the center in the width direction of the lower roofing material. It can be realized in a stable state without any.

According to the third aspect of the present invention, the backup material supports the roof material and improves the strength against stepping cracks and the like, and the backup material compensates for the thickness of the roof material and improves the heat insulation.

According to the fourth aspect of the present invention, the grooves that match the flow direction of the roof make it difficult for moisture to accumulate and improve drainage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a roofing material according to a first embodiment of the present invention.

FIG. 2 is a side view showing a roofing state of the same roof material.

FIG. 3 is a perspective view showing a roofing material according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing an appearance of a roof on which the same roof material is laid.

FIG. 5 is a view showing the layout of the same roof material on the entire roof surface of the gabled roof, wherein (A) is a perspective view of the entirety;
(B) is a cross-sectional view cut in the horizontal direction.

FIG. 6 is an overall perspective view showing layout of the same roof material in the case of a corner building.

FIG. 7 is a perspective view showing a backup material used when the roof material is laid.

FIG. 8 is a cross-sectional view showing a roof laid using the same backup material.

FIG. 9 is a perspective view showing a conventional roofing material, in which (A) shows a thin roof material and (B) shows a thick roof material.

FIG. 10 is a side view showing another conventional roofing material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Eave side hanging piece 2 Building side rising piece 3 Roofing material body 4 Overlapping piece 5 Insertion gap 6 Backup material 7 Groove 8 Depression 10 Roof base 11 Keraba material 12 Slope fixing material

Claims (4)

(57) [Claims] An eave-side hanging piece and a ridge-side rising piece are provided on a flat roof material body, and one side of the roof material body is downwardly suspended and further extended substantially horizontally. A roofing material characterized in that the roof side of the overlapping piece and the ridge side rear surface of the roofing material main body are formed so as to be in contact with the roof base during roofing. 2. The roofing material according to claim 1, wherein a substantially central portion of the ridge-side rising piece is cut off to form an insertion gap for a roofing piece of roofing material that is laid on top of the roofing piece. 3. The roofing structure according to claim 1, wherein a backup material is provided in a gap between the roofing material and the roof base. 4. The roofing structure according to claim 3, wherein a groove is formed in the backup material so as to coincide with the flow direction of the roof.