JP2901234B2 - Roofing material - 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 used for laying a roof continuously in a horizontal direction and a vertical direction.

[0002]

2. Description of the Related Art In order to have a heat insulating effect and a sound insulating effect,
A foamed polyurethane liquid is sprayed on the back of a metal roofing material to foam it, and the cured polyurethane foam layer is bonded and fixed to the roofing material. Are separately prepared, and a roofing material or the like that is bonded and fixed to the back surface of a metal roofing material with an adhesive applied on one entire surface thereof has already been developed.

[0003]

However, the above-mentioned conventional roofing materials have the following problems, that is, there is a considerable temperature difference between indoors and outdoors, especially in cold regions. Although dew condensation occurs on the back surface, a layer of foamed polyurethane at the time of molding or a plate material made of foamed polyurethane with an adhesive is adhered and fixed on the entire back surface of the roof material, so that there is no place for this dew water to escape. Therefore, there is a possibility that the dew water stays in the dew portion and the roof material is corroded.

[0004] Further, since the thermal expansion coefficient and the thermal shrinkage rate of a metal roofing sheet and a foamed polyurethane layer or a foamed polyurethane sheet material are different from each other, the roofing sheet bends particularly in a severe winter or a high summer and the roofing is performed. The entire roof is waving. As a result, the foamed polyurethane layer or the foamed polyurethane plate material gradually peels off due to the expansion and contraction of the roof material, and there is a possibility that the two may be separated from each other with the passage of time.

[0005] Further, when an operator rides on the roofing material at the time of roofing or repairing the roof, a portion where a vertical load is applied to the foamed polyurethane layer or the foamed polyurethane plate which is a hardening material. However, there is a problem in that a complicated crack is formed, which partially breaks and falls off.

Further, in the case of a roofing material having a foamed polyurethane layer formed by spraying a foamed polyurethane liquid on the back surface of a metal roofing material, the foamed polyurethane layer may be formed only on a portion having the same area as the roofing material. Since it is not possible, there is a problem in that the heat insulation and the waterproofness in the vicinity of the connection part in the vertical and horizontal directions between the roofing materials are poor.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional roofing material. The foamed resin sheet is a corrugated sheet provided with a plurality of convex ridges and concave ridges, and the foamed resin sheet is formed of the foamed resin sheet. Adhesively fixed to the back of the roofing material body on the top surface,
When the recessed portion extends in the vertical direction of the roofing material main body between the back surface of the roofing material main body and the corrugated sheet made of foamed resin, the corrugated sheet made of the foamed resin becomes the roofing material. A roof material characterized in that it is configured to extend outward by a predetermined width from an upper side and a right side or a left side of the main body, respectively.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in FIGS. 1 to 9. In the drawings, A is a roofing material according to the present invention, which is formed by bending a single metal plate. The roofing material main body 4 has a horizontal rectangular shape, and a foamed resin sheet 22 described later fixed to the back surface of the roofing material main body 4 with an adhesive.

Reference numeral 5 denotes a lower side of the roofing material main body 4;
Is formed with a lower side locking portion 6 which is bent toward the back surface 4b. The lower side locking portion 6 includes a hanging portion 7 having a predetermined height and a horizontal portion 8 bent inward from the hanging portion 7.
An obliquely bent portion 9 formed by being bent obliquely upward is continuous with the rear end of the horizontal portion 8. The height of the hanging portion 7 is formed so as to gradually increase from the right side 10 to the left side 11 of the roof body 4.

Numeral 12 denotes an upper side of the roofing material main body 4. The upper side 12 has an upper side engaging portion 13 which engages with the lower side engaging portion 6 formed by bending the surface 4a into an S-shape. A mounting portion 14 extending from the upper side locking portion 13 in the direction of the upper side 12 is formed, and the upper side locking portion 13 has a lower protruding portion 15.
Are formed in the left-right direction. Reference numeral 16 denotes a rectangular cutout formed at the left and right ends of the mounting portion 14, and a folded piece 13a that is a part of the upper side locking portion 13 is exposed at the cutout. In the drawing, reference numeral 14a denotes a rear end edge of the mounting portion 14, which is a narrow bent piece bent at an acute angle toward the surface 4a.

Reference numeral 17 denotes a right side locking portion, and 18 denotes an extension portion continuous with the right side locking portion.
The upper portion is bent in an S-shape on the side, and an upper ridge 19 extending in the vertical direction of the roofing material main body 4 is formed at the center of the extension 18. A bent piece 18a that is bent at an acute angle toward the surface 4a is formed at an end edge of the extension portion 18. 20 is the left side 1 of the roofing material body 4
The left side engaging portion 21 is formed on the back surface 4b side so as to be freely engageable with the right side engaging portion 17 in the left side engaging portion formed in a substantially U-shaped cross-section.

Reference numeral 22 denotes a corrugated, horizontally rectangular foamed resin sheet made of, for example, a high-expansion polyethylene sheet or the like. The foamed resin sheet 22 has an acrylic or It is adhered by an adhesive such as synthetic rubber. Here, the foamed resin sheet 22
Abuts on the back surface 4b of the roof material main body 4 at the top surface of the corrugated peak 22a, so that the top surface of the corrugated peak 22a is bonded to the back surface 4b of the roof material main body 4 in a line contact state. The concave portions of the portions and the valleys 22b are arranged so as to coincide with the vertical direction of the roofing material body 4, that is, the direction from the upper side 12 to the lower side 5.

As a result, between the back surface 4b of the roofing material main body 4 and the foamed resin sheet 22, a recessed portion of the valley 22b extending in the vertical direction of the roofing material A is formed. The space formed by the concave ridges is used as a downflow of dew condensation water generated by condensation on the back surface 4b of the roofing material main body 4. Therefore, in the present invention, it is not necessary to form the entire foamed resin sheet 22 into a corrugated shape.
The purpose can be achieved even if the convex ridge portion a and the concave ridge portion of the valley 22b are formed and the other surface is flat.

The upper side and the right side of the foamed resin sheet 22 adhered to the back surface 4b of the roofing material main body 4 are respectively defined by the bent pieces 18a of the upper side 12 and the right side 10 of the roofing material main body 4. An upper side extending part 23 and a right side extending part 24 are provided, which extend outward by the width. The lower side and the left side of the foamed resin sheet 22 are disposed at positions separated by a predetermined width from the obliquely bent portion 9 and the left side locking piece 21 of the lower side locking portion 6 of the roofing material body 4, respectively. The connection work when connecting the roof material A in the left-right and up-down directions is facilitated.

Next, the case of roofing as shown in FIG. 9 with the roofing material A will be described. First, when the roof is roofed in the left-right direction, as shown in FIG. A nail 25 is driven into the mounting portion 14 and fixed on a roof base plate 26 via a roofing (not shown) or the like. Then, the right side locking portion 17 of the fixed roofing material A is moved to the left side locking portion 20 at a position where the roofing material A connected thereto is shifted downward.
And wrap it up.

Then, by sliding the continuous roofing material A rightward, the left side locking portion 2 is moved as shown in FIG.
The left-side locking piece 21 is inserted to a depth between the lower surface of the right-side locking portion 17 and the surface 4a of the roofing material A, and the right-side locking portion 17 and the left-side locking portion 20 are engaged. On this occasion,
Polymerization is performed so that the left side portion of the foamed resin sheet 22 of the roofing material A connected to the right side extension 24 of the foamed resin sheet 22 is placed.

Next, the lower side 5 of the roof material A to be connected is hit by a mallet or the like in the direction of the arrow and pushed up, as shown in FIG.
Excision end faces 1 of excision parts 16, 16 of left and right roofing materials A, A
When 6 'and 16' move upward until they come into contact with each other, the right side 10 of the lower side locking portion 6 of the fixed roofing material A becomes the left side 11 of the lower side locking portion 6 of the roofing material A connected to the right side.
In this state, the nail is driven into the mounting portion 14 of the roofing material A to be connected and fixed.

Next, in the case where another roofing material A is vertically connected across the two fixed roofing materials A, A,
As shown in FIG. 5, the lower-side locking portions 6 of the upper-layer roof material A connected to the upper-side locking portions 13 between the lower-layer roofing materials A, A fixed on the field board 26 are connected to the upper-side locking portions 13. Put on. Then
When the horizontal portion 8 of the lower edge locking portion 6 of the upper roof material A is inserted between the upper edge locking portions 13 and 13 of the lower roof material A and the surface 4a of the roof material A, the lower edge locking portion 6 Is the lower roof material A,
In a state of straddling between A, the lower roofing materials A, A are engaged in a state of wrapping the upper side locking portions 13, 13.

At this time, the lower portion of the foamed resin sheet 22 of the upper roofing material A is polymerized so as to rest on the upper side extension 23 of the foamed resin sheet 22 of the lower roofing material A.
By performing the above operations in the vertical and horizontal directions, a roof having a predetermined area can be laid.

When the roof is covered with the roofing material A according to the present invention, the foamed resin sheet 22 becomes a heat insulating material and can prevent dew condensation. Further, when dew condensation occurs on the back surface 4b of the roofing material main body 4, the water droplets are dropped on the space formed by the valleys 22b of the foamed resin sheet 22. It becomes a groove and flows out along this. On this occasion,
Foam resin sheet 2 of roofing material A connected vertically and horizontally
Since the upper side extension 23 and the left side extension 24 overlap each other, water leakage from the connection portion thereof is reliably prevented.

Further, the foamed resin sheet 22 is
Is fixed to the back surface 4b of the roofing material body 4 in a line contact state at the top surface of the roofing material A. Therefore, the roofing material A is hardly affected by the difference in the shrinkage rate and expansion rate due to the temperature difference between the front and back sides, There is no separation from the back surface 4b of the main body 4.
Also, when cutting a part of the roofing material A or the foamed resin sheet 22 in accordance with the shape of the place to be laid, a part of the foamed resin sheet 22 is peeled off, and then the roofing material A is formed into a desired shape. After cutting, the foamed resin sheet 22 is again adhered and fixed, and unnecessary portions may be cut into a desired shape by a cutter, so that the work is easy.

[0022]

According to the roofing material of the present invention, as described above,
A roofing material comprising a roofing material main body and a foamed resin sheet attached to the back surface thereof, wherein the foamed resin sheet is a corrugated sheet having a plurality of convex ridges and concave ridges. The corrugated sheet is adhesively fixed to the back surface of the roofing material main body at the top surface of the ridge portion, and the concave ridge portion is provided between the back surface of the roofing material body and the corrugated sheet made of foamed resin. Since the foamed resin corrugated sheet extends outward by a predetermined width from the upper side and the right side or the left side of the roofing material main body, respectively, the dew condensation water The roof material does not corrode because it flows down due to the slope of the roof and does not stay. In addition, since the roof panel does not bend due to the difference in the coefficient of thermal expansion and the coefficient of thermal contraction, durability is improved and the entire roof does not become wavy and the appearance does not deteriorate. Further, when the roof is laid or repaired, even if the worker rides on the roof material and applies a vertical load, the foamed resin sheet is deformed according to the deformation of the roof material body,
It is not damaged and can be easily installed without deteriorating the performance even when cutting roof material, etc.
There are various effects.

[Brief description of the drawings]

FIG. 1 is a perspective view of a roofing material according to the present invention as viewed from the front side.

FIG. 2 is a perspective view of the roofing material as viewed from the back side.

FIG. 3 is a cross-sectional view of FIG. 1 with a part of line II omitted.

FIG. 4 is a left side view of the roofing material.

FIG. 5 is an enlarged sectional view taken along line II-II of FIG. 9;

FIG. 6 is an enlarged sectional view taken along the line III-III of FIG. 9;

FIG. 7 is a plan view showing a state in which a roof material is being laid.

FIG. 8 is a plan view showing completion of roofing.

FIG. 9 is a partial perspective view showing a roof covering state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Roofing material 4 Roofing material main body 4b Back surface 5 Lower side 6 Lower side locking part 10 Right side 11 Left side 12 Upper side 13 Upper side locking part 14 Mounting part 17 Right side locking part 20 Left side locking part 22 Foam resin sheet 22a Mountain 22b Valley 23 Top extension 24 Right extension

Claims (2)

(57) [Claims] 1. A roofing material comprising a roofing material main body and a foamed resin sheet mounted on the back surface thereof, wherein the foamed resin sheet is a corrugated sheet having a plurality of convex ridges and concave ridges. The corrugated sheet made of foamed resin is adhesively fixed to the back surface of the roofing material main body at the top surface of the ridge portion, and the concave ridge portion is provided between the back surface of the roofing material body and the corrugated sheet made of foamed resin. And the corrugated sheet made of the foamed resin extends outward by a predetermined width from the upper side and the right side or the left side of the roofing material body, respectively. A roofing material characterized by that: 2. The roofing material according to claim 1, wherein the corrugated sheet made of a foamed resin is a flexible sheet having a closed cell structure and flexibility.