JP2002038658A - Heat insulating roof material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal thin plate-made roof material improve in water tightness, heat insulation, sound insulation and sound absorbing performance and costing low. SOLUTION: This heat insulating roof material is formed on both edges of a roof body constituting a roof material, a male end edge 16 and a female end edge 17 of the adjacent roof materials are engaged to perform roofing. A part from which a part of resin foam integrally foamed on the back of the roof body is removed is superposed on a gutter-like throttle part 12 formed on the surface of the roof body and connected to perform roofing. Thus, heat insulation, sound insulation and sound absorbing performance of the roof material constructed at low cost are improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating roofing material made of a thin metal sheet for horizontal roofing, which can improve heat insulation, sound insulation and sound deadening, and improve wind pressure, water tightness and strength.

[0002]

2. Description of the Related Art In a building, various types of sheet metal roofing materials and roofing members required for the same are commercially available. These roofing materials are laid in a continuous combination in a flow direction and a girder direction. It constitutes the roof. The problem with such roofing materials is the prevention of rainfall noise and rain leakage due to dew condensation and rain noise on the backside of the roofing materials, and the watertightness that ensures reliable rain behavior. Therefore, in a conventional metal roofing material, a resin foam sheet or resin foam such as polyethylene, polystyrene, or polyurethane is attached to the back surface of the roof material with an adhesive. For example, as this kind of roofing material, Patent No. 28
No. 47241 and JP-A-59-102722. The end shape of the locking portion in the eaves side direction of these conventional metal roofing materials is such that when the roofing material is laid, the locking portion and the engaging portion of the roofing material adjacent in the flow direction are fitted. In order to improve the strength of the joint, it had a shape that was bent almost at right angles to the surface of the roof body.

[0003]

However, in the metal roofing material shown as a conventional example, as described above, the addition of a resin foam sheet or resin foam such as polyethylene, polystyrene, or polyurethane to the back surface of the roof main body does not work. The use of rubber-based or synthetic resin-based adhesives increases the manufacturing process and increases the cost of roofing materials. Temperature difference, relative humidity difference,
Due to differences in conditions such as a difference in open time and a difference in drying time during bonding work, defects such as incomplete bonding and lack of adhesion between the back surface of the roof body and the resin foam sheet or resin foam due to partial peeling occur. As a result, there were problems in quality stability, quality control, and ensuring reliability. In addition, most of the adhesives generally used widely, such as conventional examples, are resin-based or rubber-based materials using organic solvents stipulated by the Industrial Safety and Health Law. Scattering of adhesive during work has environmental problems such as worker's health and air pollution, which is currently advocated for environmental protection on a global scale. There is a problem that exhaust treatment and management are difficult, and there is a problem that the solvent used at the same time is extremely flammable and requires sufficient fire prevention management. Also, if the resin foam sheet and the resin foam constituting the heat insulating material of the roofing material have a portion that is not entirely adhered to the back surface of the roof body, the portion condenses, so that the resulting adhesive is dried. However, there is a high possibility that peeling will be further promoted when immersed in dew water for a long time or repeatedly, and there is a problem that a portion where dew condensation occurs is widened.

For this reason, in the above-mentioned conventional example, it is difficult to completely bond the back surface of the roof main body and the resin foam sheet or the resin foam from the beginning. Has taken. In the conventional example, as a countermeasure against the problem of dew condensation and the above-mentioned problem of adhesive peeling due to dew condensation, on the contrary, the resin foam sheet or the resin foam is not entirely adhered from the beginning, and only a plurality of adhesives are applied. The portion where the resin foam sheet or the resin foam does not adhere is used as a gap, and the gap is used under the flow of the condensed water to take measures such as treatment of the condensed water. Should be prevented,
The more seemingly contradictory countermeasures to use the non-adhesive part of the resin foam sheet or resin foam as a heat insulating material for the drainage treatment of dew water, the more the adhesive application, the reliability of the adhesive work, the more the adhesive part She was worried about changes over time such as poor peeling. Further, in the conventional example, the addition of the resin foam sheet or the resin foam by bonding to the back surface of the roof body is as follows:
Since it is not provided in the engaging portion, when the roofing material is laid, a separate component, which is a separate component, is provided below the engaging portion with another roofing material adjacent in the girder direction in order to ensure watertightness. Since it is necessary to dispose the boards, the cost of the entire roof material must be increased, and the problem of cost reduction remains.

Further, in the conventional roofing material for horizontal roofing, the shape of the end of the locking portion in the eaves direction has a shape that is bent substantially at right angles to the surface of the roof main body. Although the strength at the fitting portion of the roofing material is improved and good, the bent shape portion of the roofing material locking portion is blown by the wind pressure load in a strong wind, and the roof main body is peeled off. In the case where strong wind and rainwater are received at the same time, the roofing material may be lifted up by the force of the blow-up wind pressure, and may be lifted, and the gap between the roofing material and the roofing material laid adjacent to the eaves side. Rainwater blows into the area where it was expanded,
After the strong wind stops, the rising of the roofing material returns, but the water that has entered the gap cannot be removed as it is and stays there, and the drainage is poor, which is a serious problem that causes so-called crevice corrosion. was there.

[0006]

Means for Solving the Problems The present invention comprises a roof body, a resin foam formed integrally with the back of the roof body, and a back material disposed on the back of the resin foam. , At one end edge and the other end edge of the roof body in the longitudinal direction,
A male edge and a female edge are formed, and the male edge formed on the roof main body and the female edge of the roof main body adjacent to the ridge direction of the roof main body, that is, the upper stage, are laid, and By repeating this work, the roofing material can be continuously laid in the direction from the eaves side to the ridge side, and the roof body has the other end (opposite one end) surface in the longitudinal direction thereof. At least two or more gutter-shaped apertures are formed at right angles to the longitudinal direction and over substantially the entire width from the inner surface of the male end edge to the downwardly inclined surface. The resin foam and the backing material formed on the back surface of the one end portion in the length direction are removed by peeling (excluding) a predetermined length over substantially the entire width in a direction perpendicular to the long side and removing the one end portion adjacent to the above. By overlapping and roofing on the upper side of the other end, these operations are sequentially repeated and roofed in the girder direction. After roofing, there is almost no infiltration of rainwater from the overlapped connection, and even if it does, the infiltrated water flows down the eaves along the gutter-like drawing shape of the roofing material connected to the lower side. From the drainage notch or drainage hole formed on the lower slope of the roofing material that is connected adjacent to the upper side, the roof body surface fitted adjacent to the eaves flows down to the eaves for water treatment. This provides a roofing material with improved watertightness.

[0007]

Hereinafter, as one embodiment of the present invention, a heat insulating roofing material for a horizontal roof for a general house will be described, but the present invention is not limited to this embodiment. One embodiment of the present invention will be described with reference to FIGS. 1 to 6. The roof material 10 includes a roof body 11 and a resin foam 13 integrally formed with a back surface of the roof body 11. This is a roofing material for a horizontal roof comprising a back material 14 disposed on the back surface of the resin foam 13.
When explaining FIG. 1 in detail, one end edge on the ridge side is folded into a substantially U-shape at the time of roofing so as to be parallel to the longitudinal direction of the roof main body 11 and bent toward the surface side, and the extended end is doubled. The portion is folded back so as to be substantially parallel to the surface of the main body to form a male edge 16, and its extended end is bent into a substantially Z-shape to form a nailing portion 16e. In parallel with this, a rib squeeze is formed on the surface side to form a drain, and the tip is hooked to the surface side to form a water return portion. The edge is bent at an obtuse angle to the back side to form a downward inclined surface 17c, and the extended end is bent inward so as to be substantially parallel to the roof main body 11, thereby forming the female end edge 17.
Further, in one embodiment of the present invention, the work of laying the roof material 10 is performed from the eaves side toward the ridge, and firstly, on the eaves side,
An eaves-side lower roofing material 10a is provided, and the eaves-side lower roofing material 10a is provided.
ridge side lower roofing material 10 adjacent to the ridge side with the male edge 16a of
c is fitted to the female edge 17b and assembled. Here, the roofing materials 10a to 10c used are numbers given for the sake of convenience for ease of description, and are the same as the roofing materials.
The same applies hereinafter. Further, the backing material 14 and the resin foam 13 near the one end perpendicular to the longitudinal direction of the main roof body 11 are removed at a predetermined width = β perpendicular to the longitudinal direction of the roof main body 11, and the one end is removed. From the inner surface of the male edge 16 to the female edge 17
Until the back side is formed into a substantially V-shape,
And the drainage notch 1 extends from the downwardly inclined surface 17 c extending forward from the resin foam removing portion 15 to the female edge 17.
7d is formed. On the surface near the other end (opposite one end) perpendicular to the longitudinal direction of the roof main body 11, over the entire width from the inner surface of the approximately U-shaped bent portion of the male edge 16 to the downward inclined surface 17c. Forming at least two or more gutter-shaped drawing shapes 12, bending the other end end face toward the surface side and standing up to form a ridge fold, or folding the other end end face in a hook shape. Form a hook.

Here, as shown in FIG. 4 and FIG. 6, the position and width of the drainage notch 17d formed on the roofing material 10a are laid adjacent to the roofing material 10a in the girder direction. At least 2 formed at the other end of the other roofing material 10b
It is formed to have a position corresponding to the number of the gutter-shaped aperture shapes 12 and the width dimension substantially matching the total width dimension of the gutter-shaped aperture shapes 12.

As shown in FIGS. 3 and 4, at least two or more gutter-shaped throttle shapes 12 are formed from the end face of the hook 15 a formed at the other end perpendicular to the longitudinal direction of the roof main body 11. Assuming that the width dimension up to the total is α and the length dimension from the end face of the polymerization presser side 18 formed at one end perpendicular to the longitudinal direction to the end of the resin foam removal section 15 is β, the dimensions α, β
Has a relationship of α ≦ β.

The roofing material 10 is a heat insulating roofing material for horizontal roofing, and a roof body 11 having a main structure is formed by embossing or pressing the surface of the roofing body 11 with a decoration and a reinforcement, for example, by painting. Galvanized steel sheet, painted aluminum zinc alloy plated steel sheet, painted stainless steel sheet,
A vinyl chloride steel plate, a painted aluminum plate, a copper plate, or the like is used.

On the back surface of the roof material 10, a resin foam 1
3 is formed integrally with the roof main body 11, and the resin foam 13 is provided with a heat insulating property, a sound deadening property,
This is a member for improving the strength, and for example, urethane foam, polyisocyanurate foam, phenol or the like is used as this material. In addition, on the back surface of the resin foam 13, a back material 14 is disposed to substitute for a form when the roof main body 11 and the resin foam 13 are integrally formed and to protect the back surface of the resin foam 13. . As a material of the back material 14, for example, aluminum foil laminated paper, aluminum vapor-deposited paper, aluminum foil, steel paper, or the like is used.

The roofing work of the present roofing material 10 will be described. In general, the roofing material 10 is sequentially laid from the eaves side to the ridge side and from the left to the right side, and a decoration is provided on the eaves of the roof foundation 19. And eaves arabesque (not shown) corresponding to the starter are installed and fixed, waterproof paper (not shown) such as asphalt roofing is laid on the entire roof base, and then the roofing material 10 is moved from the left side of the eaves to the right side. We lay. As described above, for convenience, the eaves-side lower roofing material 10a and the male edge formed thereon are referred to as 16a in order from the leftmost roofing material on the eaves side, and the eaves side adjacent to the roofing material 10a in the girder direction. The upper roofing material 10b, the female edge formed thereon is referred to as 17a, and the male edge is referred to as 16b. First, the eaves-side lower roofing material 10a is disposed on the eaves arabesque, and the nailing portion thereof is provided. 16
e is fixed to the roof foundation 19 by nailing or screwing,
Next, the female edge of the eaves-side upper roofing material 10b adjacent to the eaves-side lower roofing material 10a in the girder row direction is put on the female edge of the eaves-side lower roofing material 10a, and the overlapping insertion portion 20 of the eaves-side upper roofing material 10b is attached. It is arranged while being inserted into the male edge 16a, and is fixed to the nailing portion 16e of the roofing material 10b by nailing or screwing. This operation is sequentially repeated to lay in the column direction. Next, the male edge 16 of the eaves-side lower roofing material 10a that is laid is inserted and fitted into the inner surface of the female edge 17 of the roofing material 10c adjacent in the ridge direction, and the nailing portion of the roofing material 10c is inserted. 16e is fixed to the roof foundation 19 by nailing or screwing. Similarly, the roofing material 1
The ridge side upper roofing material 10d adjacent in the girder direction of 0c is laid. These works in the ridge direction and the girder direction are sequentially repeated, and the roof material is laid on the entire roof.

Further, the other end edge of the roof main body 11, that is, the eaves side edge at the time of roofing is bent at an obtuse angle to the back side, and a downwardly inclined surface 17c is formed.
And forming a female edge 17 by folding the extended end inward in an approximately L-shape with an acute angle so as to be substantially parallel to the roof body, and further folding the extended end with a hook. When the male edge 16a formed on the roofing material 10a is fitted to the inner surface of the female edge 17b formed on the roofing material 10b adjacent to the roofing material 10a, the lower inclined surface 17c and the female edge 17 are laid. In this case, the fitting gap 21 is formed in the form of a pillow to serve as a drainer and suppresses the capillary phenomenon. Therefore, even when rainwater enters from the lower part of the lower inclined surface 17c, rainwater is formed by the fitting gap. It can be prevented from penetrating deep inside. Also, a downwardly inclined surface 17c formed on the roof body 11
Is formed by bending at an obtuse angle with respect to the surface of the roof main body, and the extended end is formed by folding back into an approximately L-shape at an acute angle.
Since the angle of contact between the downward inclined surface 17c and the roof main body adjacent to the roof main body in the eaves direction is obtuse, the rainwater that has fallen on the surface of the roof shingle main body flows straight down in the eaves direction, When a wind pressure load due to strong wind blowing up from the direction against the lower inclined surface is received, when the strong wind blows upward along the surface of the lower inclined surface 17c according to Bernoulli's theorem, the wind speed increases, and Since the pressure in the vicinity of the outlet of the fitting gap 21 decreases and becomes a negative pressure, the air inside the fitting gap 21 is pushed out from the fitting gap to the vicinity of the outlet. That is, even if rainwater enters the inside of the fitting gap 21, it is pushed out to the vicinity of the fitting gap outlet together with the internal air and flows down in the eaves direction of the roof main body. No water is stored in the area.

[0013]

As described above, the present roofing material is formed by integrally molding a resin foam on the back surface of the roof main body, and has one end and the other end parallel to the longitudinal direction thereof. By forming a female edge and a male edge and fitting the male edge to the female edge in a water-tight manner, it is possible to continuously connect in the flow direction from the ridge to the eaves. Further, the back material and the resin foam at one end in the elongate direction are removed at a predetermined width, for example, β dimension, at right angles to the elongate direction, and one of the lower inclined surface and the male edge in the resin removal portion is removed. The drainage notch is formed by cutting out the portion, and the gutter-like throttle shape is formed on the surface in the longitudinal direction and the other end portion. When the roof material from which the backing material and the resin foam are removed at a predetermined width is connected by superimposing and lowering one end of the roof material and continuously shingling in the girder direction, the heat insulation, sound insulation, and sound absorption and sound insulation of the roof material are obtained. In addition, there is an effect that it is possible to improve the performance, and it is not necessary to actively use a waste plate for rainwater to flow down.

Further, in the roofing material of the present invention, since the resin foam is formed integrally with the back surface of the roof main body, the resin foam sheet and the resin foam are added to the roofing material as in the conventional example. Since no rubber or resin adhesive is used for
There is no need to provide a separate step in the production of the roofing material, there is no fear of incomplete bonding, and the cost can be reduced as a roofing material.

Further, in the present roofing material, the eave-side edge of the surface of the roof main body is bent into an approximately L-shape at an obtuse angle to form a downwardly inclined surface, and the extending end of the downwardly inclined surface is formed at an acute angle. A female edge is formed in a substantially L-shape in parallel with the roof surface, and the tip is turned back to form a water return, so that the female edge is adjacent to the eaves side of the roof main body. If the rainwater falling on the main roof is blown onto the roofing material by strong wind after fitting and laying the male edge formed on the roof edge, the wind flowing from the eaves side of the roof main body to the ridge side is The speed became high when blowing through the lower slope, and the lower part of the lower slope, that is, the vicinity of the fitting gap exit formed by fitting of the roof body became negative pressure by Bernoulli's theorem, and entered into the fitting gap. As water is pushed out to the vicinity of the fitting gap outlet, water is stored inside the fitting gap. That is not, there is an important effect as a roofing material.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a roofing material according to the present invention.

FIG. 2 is a side view and a sectional view of a roofing material according to the present invention.

FIG. 3 is a diagram illustrating a surface of a roofing material according to the present invention.

FIG. 4 is a diagram illustrating a back surface of a roofing material according to the present invention.

FIG. 5 is a side sectional view illustrating a fitting portion of a roofing material according to the present invention.

FIG. 6 is a perspective view illustrating a fitting portion of a roofing material according to the present invention.

FIG. 7 is a cross-sectional view of a conventional roofing material.

[Explanation of symbols]

 Reference Signs List 10 roofing material 10a eaves-side lower roofing material 10b eaves-side upper roofing material 10c ridge-side lower roofing material 11 roof main body 12 gutter-like drawn shape 13 resin foam 14 backing material 15 resin foam removal part 15a hooked part 15b ridge Folded part 16 Male edge 16a Male edge of roof material 10a 16b Male edge of roof material 10b 16c Water return portion 16d Roof base contact portion 16e Nailing portion 17 Female edge 17a Female edge of roof material 10b 17b Roof material Female edge of 10c 17c Downward inclined surface 17d Drainage hole or drainage notch 18 Overlapping holding edge 19 Roof base 20 Overlay insertion portion 21 Fitting gap 32 Foam resin sheet 33 Adhesive 34 Gap portion 36 Locking portion 37 Engaging portion 38 Discard

Claims (4)

[Claims] 1. A roof body having a male edge at one end in the ridge direction of a roof material and a female edge at the other end in an eave direction, and resin foam molded integrally with the back surface of the roof body. Body, and a back material disposed on the back side of the resin foam, the male edge is fitted to the female edge on the other roof material rear side adjacent to the ridge side, and the female edge is In a roofing roofing material that is fitted and laid on the male edge on the front side of another roofing material adjacent to the eaves side, the resin foam near the one end in the longitudinal direction and the backing material are perpendicular to the longitudinal direction. A thermally insulated roofing material which is removed over substantially the entire width, and the removed portion is laid on the other end surface side of another roofing material adjacent in the girder direction by overlapping connection. 2. Forming at least two or more gutter-like apertures on the surface near the other end of the roof body, generally from the inner surface of the male edge to the female edge, at right angles to the longitudinal direction. The other end end face is raised to the surface side to form a ridge folded portion, or the other end end face is folded in a hook shape to form a hooked portion, and the gutter-shaped drawn shape and the ridge folded portion or the hooked portion are formed. The roof is laid on the other end portion where the portion is formed by superimposing and connecting the back surface side of the one end portion from which the resin foam and the back material of the other roof material adjacent in the row direction are removed. Item 2. Insulated roofing material according to item 1. 3. A cut is made in the back material and the resin foam in the vicinity of one end of the roof material at a predetermined dimension from the end face of the one end at a right angle to the longitudinal direction, and then the back material and the resin foam are cut. Is peeled (squeezed) outward in the long direction to remove the back surface material and the resin foam, and to form a substantially rectangular shape from the inside of the male end to the female end of the one end portion on the back side. 3. The heat insulating roofing material according to claim 1, wherein the heat insulating roofing material is formed into a shape to form a polymerization holding side. 4. The other end of the roof body in the eaves direction is bent to the back side at an obtuse angle to form a downward inclined surface, and the extended end is bent inside so as to be substantially parallel to the roof body. Forming a female edge, forming a substantially slit-shaped drainage hole in the downwardly inclined surface, or forming a drainage notch by cutting the downwardly inclined surface and the female edge, and forming the drainage hole or the drainage notch, 2. The roof body according to claim 1, wherein the roof body is formed at a position opposite to the eaves side of a gutter-like aperture formed on the other end surface and the downwardly inclined surface of another roof body adjacent in the girder direction. Item 4. An insulated roofing material according to items 2 and 3.