JPH09279772A - Heat insulating roof material and its connected structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep connected parts sufficiently watertight along the eaves-ridge direction in which the pitch of the roof extends and rainwater flows down by enhancing the fixed strength of heat insulating roof material through effective use of metallic outer covers, and also enhancing the appearance of the back of the roof material. SOLUTION: This heat insulating roof material has a heat insulating core 3 between two metallic outer covers 1, 2. A fitting projection 4 is formed at one end of a roof material main body along the eaves-ridge direction, a fitting recess 5 is formed at the other end, and at a portion over the fitting projection 4 and the fitting recess 5, a cover piece 6 is extended from an eaves-side end toward the eaves, with the eaves-side surface of the heat insulating roof material brought close to the cover piece 6, and with a descending piece 7 formed between the cover piece 6 and the eaves-side heat insulating roof material to constitute a draining empty space 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating roof material having a heat-insulating core material interposed between two metal skins and a connecting structure thereof, and more particularly, to a metal skin. A technology that effectively uses it to increase the fixing strength of the insulating roofing material, enhance the appearance of the back side of the roofing material, and maintain sufficient watertightness at the connection point in the eaves direction with a roof slope and rainwater flowing down. It is related to.

[0002]

2. Description of the Related Art Conventionally, in heat insulating roof materials, for example,
The back of the metal skin is lined with heat insulating material, and such heat insulating roof material is connected in the direction of the eaves with a roof slope.

[0003]

By the way, the heat insulating roofing material in which the back surface of the metal outer cover is lined with the heat insulating material has the open back surface side of the heat insulating material, and it is difficult to increase the mounting strength of the heat insulating roof material. Due to the exposed heat insulating material, the external appearance is greatly deteriorated, and rainwater easily infiltrates from the connection point connecting to the eaves ridge, and the rainwater leaks to the ceiling.

The present invention has been made in view of the above problems, and an object of the present invention is to effectively use a metal outer cover to enhance the fixing strength of the heat insulating roof material and to improve the fixing strength of the roof material. The present invention aims to provide a heat-insulating roofing material and a connection structure thereof which can enhance the appearance of the roof, and can sufficiently maintain the watertightness of the connection point in the eaves direction where the rainwater flows down and the roof slopes.

[0005]

According to a first aspect of the present invention, there is provided a heat insulating roofing material in which a core material 3 having a heat insulating property is interposed between two metal skins 1 and 2, which is a roof plate. A fitting protrusion 4 is formed at one end of the main body in the eaves ridge direction, and a fitting recess 5 is formed at the other end of the main body. The covering piece 6 is extended toward the side, and the covering piece 6 has a descending piece 7 which is close to the surface of the heat insulating roof material on the eaves side and which forms a drainage space 8 with the heat insulating roof material on the eaves side. It is characterized by being formed.

In the second aspect, the eave-side heat insulating roof material portion covered with the covering piece 6 is the nailing portion 16,
An inner nailing piece 17 is formed on the back surface side of the nailing portion 16 by embedding an end edge portion of at least one of the outer leathers 1 and 2 in the core material 3. To do. In the third aspect, the bank portion 21 protruding upward is formed on the eaves side of the flat nail driving portion 16.

According to a fourth aspect of the present invention, there is provided a structure for connecting a heat insulating roof member in which a heat insulating core member 3 is interposed between two metal skins 1 and 2, and the eaves of the roof member main body. A fitting convex portion 4 is formed at one end in the ridge direction, and a fitting concave portion 5 is formed at the other end, so that the eave side end is directed toward the eaves side at the surface layer portion rather than the fitting convex portion 4 and the fitting concave portion 5. To extend the covering piece 6 and to form a descending piece 7 close to the surface of the eaves side insulating roofing material on the covering piece 6 to form an insulating roofing material. The fitting convex portion 4 and the fitting concave portion 5 are connected to each other by fitting them in a concavo-convex manner, and a draining space 8 is provided between the down piece 7 of the insulating roof material on the ridge side and the insulating roof material on the eaves side.
Is constituted.

In the fifth aspect, the heat insulating roof material portion on the eaves side covered with the covering piece 6 is the nailing portion 16,
On the back surface side of the nail striking portion 16, an edge portion of at least one of the outer skins 1 and 2 is embedded in the core material 3 to form an internal nail striking piece 17, and the fixture 18 is a nail. It is characterized in that it is formed by penetrating the striking portion 16 and the internal nail striking piece 17 into the roof base 13.

In the sixth aspect, a bank portion 21 projecting upward is formed on the eave side of the flat nailing portion 16, and the bank portion 21 is formed.
The watertight material 20 is interposed between the top surface of the and the back surface of the cover piece 6. In Claim 1, the back surface of the core material 3 is covered with the outer skin 2, so that it is possible to avoid the troublesome work of covering the back surface of the heat insulating material in the attic to improve the workability and improve the appearance. The mounting strength of the heat-insulating roofing material can be increased because the fixture penetrates through the metal outer cover on the back surface, and the descending piece 7 formed on the covering piece 6 is eaves. Since the drainage vacant space 8 is formed near the surface of the heat insulating roofing material on the side and with the heat insulating roofing material on the eaves side, rainwater infiltrates into the connection location in the water draining empty space 8 by a capillary phenomenon. It is possible to avoid this, and the rainwater that has blown into the drainage void 8 can be drained from the gap d formed between the tip of the cover piece 6 and the heat insulating roof material on the eaves side. It is possible to avoid ingress of rainwater to the connection To prevent the entry of rain water into the connection points, rainwater with a roof slope can be maintained over a sufficiently and long watertightness eaves ridge direction of the connection portion where flows.

In the second aspect of the present invention, the fixing tool 18 is penetrated into the roof base 13 through the nailing portion 16 and the internal nailing piece 17, and the metal outer skin 1 is effectively used to make the heat insulating roofing material. Increase the fixing strength of. In claim 3, since the bank portion 21 projecting upward is formed on the eaves side of the flat nailing portion 16, rainwater is prevented from entering the nailing portion 16 at the bank portion 21, and the connection point is connected. The watertightness of can be maintained.

When the watertight material 20 is interposed between the top surface of the bank portion 21 and the back surface of the cover piece 6, it is possible to further prevent the rainwater from entering the connection points.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a cross-sectional view of the connected state,
FIG. 2 is a schematic sectional view of the whole. The heat-insulating roofing material A is formed by injecting a foamable resin material such as polyurethane or polyisocyanurate in which a polyol, an isocyanate, a catalyst and a foaming agent are blended between two outer skins 1 and 2 from a nozzle to foam. Then, a core material 3 of a heat insulating material made of a foaming resin is foam-filled between the two outer skins 1 and 2 and cut into an appropriate length by a cutting device. The working width of the heat insulating roof material A is, for example, about 910 mm and the thickness thereof is, for example, about 30 mm in the eaves ridge direction. Two metal skins 1,
The edges of the eaves 2 in the direction of the eaves are embedded in the core 3. In addition, a gap x is formed between the edges of the two outer skins 1 and 2 to avoid heat conduction caused by the contact of the two outer skins 1 and 2 and to improve heat insulation.

A fitting recess 5 is formed on the ridge-side end of the heat insulating roof material A over the entire length, and a fitting projection 4 is formed on the eaves-side end. As shown in FIG. 1, a cover piece 6 for covering the upper surface of the heat insulating roof material A connected in the eaves ridge direction is formed in the surface layer portion rather than the fitting convex portion 4. This cover piece 6
Is projected substantially flush with the surface of the heat insulating roof material A toward the eaves side of the heat insulating roof material A. A downward piece 7 is formed at the tip of the covering piece 6, and the heat insulating roof material A adjacent to the lower end of the downward piece 7
A gap d of about 1 mm is secured between the surface and the surface.

The heat-insulating roofing material portion on the eaves side covered with the covering piece 6 is a nailing portion 16. An inner nailing piece 17 is formed on the back surface side of the nailing portion 16 by embedding the edge portion of the outer skin 1 on the front surface side in the core material 3. A bank portion 21 protruding upward is formed on the eave side of the flat nailing portion 16. An inclined surface 28 is formed so as to overhang from the bank 21 toward the eaves.

In order to connect the heat insulating roof materials A and A, as shown in FIG. 1, first, a fixing tool 18 such as a screw or a nail is driven into the nail driving portion 16 of the eaves side, and the heat insulating roof material A is connected. The inner nailing piece 17 in the inside and the outer skin 2 on the lower surface are penetrated to reach the roof base 13, and the heat insulating roof material A on the eaves side is fixed. Next, the fitting convex portion 4 of the heat insulating roof material A on the ridge side is fitted into the fitting concave portion 5 via the packing P _1, and the nailing portion 16 is covered with the covering piece 6, and the covering piece 6 and the bank portion. A packing P _{2 serving} as a watertight material 20 is interposed between the dipped piece 21 and the descent piece 7, and a gap d is formed between the descent piece 7 at the tip of the cover piece 6 and the surface of the heat insulating roof material A on the eaves side. ,
The drainage space 8 is surrounded by the covering piece 6, the surface of the eaves side heat-insulating roofing material A and the bank portion 21. The bent shape of the descending piece 7 can be variously changed so that it can be bent easily, for example, as shown in FIG.

As described above, since the descending piece 7 formed on the covering piece 6 is close to the surface of the eaves side heat insulating roof material A, the drainage space 8 is formed between the eaves side heat insulating roof material A and the eaves side heat insulating roof material A. Therefore, it is possible to prevent rainwater from infiltrating into the connection portion due to the capillary phenomenon in the drainage empty space 8. Then, the rainwater that has entered the drainage void 8 by blowing strong wind and rain is drained from the gap d formed between the tip of the covering piece 6 and the heat insulating roof material A on the eaves side. It is possible to prevent the water from accumulating and penetrating into the connection point. In the inner part of the drainage void 8, a water-repellent inclined surface 28 is formed which climbs and inclines toward the eaves in a state where the heat insulating roof material A is installed. It avoids entering the hitting portion 16 side. Thus, it is possible to prevent rainwater from entering the connection points, and to maintain the watertightness of the connection points in the direction of the eaves with a roof slope to the eaves for a long time.

Moreover, the fixture 18 penetrates the nail striking portion 16 and the inner nail striking piece 17 and is driven into the roof substrate 13 to effectively utilize the metal skin 1 to increase the fixing strength of the heat insulating roof material. Increase. Further, a bank portion 21 protruding upward is formed on the eaves side of the flat nailing portion 16, and the nailing portion 1 is formed by the packing P ₂ interposed between the bank portion 21 and the back surface of the cover piece 6.
It is possible to avoid the infiltration of rainwater into No. 6 and maintain the watertightness of the connection point.

FIG. 4 shows a connection structure of the heat insulating roof materials A, A in a direction orthogonal to the eaves ridge direction. That is, at the end portion of the heat-insulating roofing material A in the direction orthogonal to the eaves side direction, the connecting piece 9 is extended outward from the end surface of the core material 3, and the hanging piece 10 is hung from the tip of the connecting piece 9. is there. For example, a crosspiece 15 is provided between the end surface of the core material 3 and the hanging piece 10.
An L-shaped attachment receiving piece 26 is attached to the hanging piece 10 with a fitting 27 via a packing P ₃ . From the both ends in the width direction of the gutter 11 having a substantially U-shaped cross section, the supported pieces 12, 1
2 is extended. Then, the supported piece 12 of the gutter 11 is placed on the roof foundation 13 which is constructed long in the eaves direction, and the supported piece 12 is fixed to the roof foundation 13 with rivets or the like. From above, the heat insulating roof materials A, A having the attachment pieces 26 attached by the attachments 17 are placed.

The cap 24 is made of a metal plate, and both sides of the cap 24 are folded back to form a sandwiching piece 30. The length of the cap 24 in the eaves ridge direction is a heat insulating roof material A.
The length is almost equal to the eaves direction. Then, the sandwiching piece 30 is sandwiched between the connecting piece 9 and the mounting receiving piece 26,
A cap 24 is attached between both roof members A, A. Then, even if the rainwater that has crossed over the cap 24 and entered between the heat-insulating roofing material A and the mounting piece 26 is stopped by the packing P ₃ , the rainwater that exceeds this is guttered from the lower end of the mounting piece 26. 11 and does not wrap around the back surface of the heat insulating roof material A. As shown in FIG. 7, the ridge-side end of the cap 24 is in contact with the water-turning inclined surface 28 of the heat insulating roof material A and is fixed by the rivet 29.

[0020]

According to the first aspect of the present invention, there is provided a heat insulating roof material in which a heat insulating core material is interposed between two metal skins, and one end of the roof material main body in the eaves direction. The fitting convex part to
A fitting recess is formed at the other end, and a covering piece is extended toward the eaves at the eaves-side end at the surface layer portion rather than the fitting protrusion and the fitting recess,
The cover piece is close to the surface of the heat-insulating roof material on the eaves side, and a descending piece that forms a drainage space is formed between it and the heat-insulating roof material on the eaves side. It is covered, avoiding the troublesome work of covering the backside of the heat insulating material in the attic, improving the workability and greatly improving the appearance, and the metal outer cover on the backside. Since the fixing tool penetrates, it is possible to increase the mounting strength of the heat insulating roof material, and moreover, the descending piece formed on the cover piece is close to the surface of the heat insulating roof material on the eaves side, and the heat insulating roof material on the eaves side is provided. Since a drainage space is formed between the drainage space and the drainage space, it is possible to prevent rainwater from infiltrating into the connection site due to a capillary phenomenon in the drainage space, and to cover the rainwater that has infiltrated by blowing into the drainage space. Exhaust from the gap formed between the tip of the piece and the eaves side roof It is possible to prevent rainwater from accumulating in the drainage empty space and invading the connection point, preventing rainwater from entering the connection point, and installing a roof slope to prevent the rainwater from flowing into the eaves. There is an advantage that the watertightness of the connection point can be maintained sufficiently and for a long time.

According to a second aspect of the present invention, the eaves side heat insulating roofing material portion covered with the covering piece is a nailing portion, and at least one of the two outer skins is provided on the back surface side of the nailing portion. Since the inner edge of the end is embedded in the core material to form the internal nailing piece, the fixing tool penetrates the nailing section and the internal nailing piece and is driven into the roof substrate to remove the metal outer skin. There is an advantage that it can be effectively used to increase the fixing strength of the heat insulating roof material.

In the third aspect, since the bank portion projecting upward is formed on the eave side of the flat nail driving portion, rainwater can be prevented from entering the nail driving portion at the bank portion, and the connection portion can be prevented. There is an advantage that watertightness can be maintained. Further, when the watertight material is interposed between the top surface of the bank portion and the back surface of the cover piece, there is an advantage that rainwater can further be prevented from entering the connection portion.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a connection point according to an embodiment of the present invention.

FIG. 2 is an overall sectional view of the same.

[Fig. 3] Fig. 3 is a schematic cross-sectional view of the insulating roofing material of the same as that in a roofing state.

FIG. 4 is a cross-sectional view showing a connection state in a direction orthogonal to the eaves ridge direction of the above.

FIG. 5 is a schematic plan view showing the roofing state of the same.

FIG. 6 is a cross-sectional view showing a connection state in the eaves ridge direction at a location where the cap is used.

FIG. 7 is a cross-sectional view showing a fixing structure of the cap on the side of the ridge.

FIG. 8 is a cross-sectional view of a connection portion of a heat insulating roofing material including another embodiment of the descending piece of the above.

[Explanation of symbols]

 1 Outer skin 2 Outer skin 3 Core material 4 Fitting convex portion 5 Fitting concave portion 6 Covering piece 7 Downward piece 8 Draining void 9 Connecting piece 13 Roof base 16 Nailing portion 17 Internal nailing piece 18 Fixing tool 20 Watertight material 21 Levee section

Claims (6)

[Claims] 1. A heat-insulating roof material having a heat-insulating core material interposed between two metal skins, wherein a fitting convex portion is provided at one end of the roof plate body in the eaves direction. , A mating recess is formed at the other end, and a covering piece extends toward the eaves at the eaves side end on the surface layer side of the fitting convex part and the mating depression, and the eaves side is insulated from the covering piece. A heat-insulating roof material, characterized in that it is formed close to the surface of the roof material and forms a downward piece that forms a drainage space with the heat-insulating roof material on the eaves side. 2. An eave-side heat-insulating roofing material portion covered with a cover piece is a nailing portion, and the back surface side of the nailing portion has an edge portion of at least one of the two outer skins. The heat-insulating roofing material according to claim 1, wherein the core is embedded in a core material to form internal nail pieces. 3. The heat insulating roof material according to claim 2, wherein a bank portion projecting upward is formed on the eave side of the flat nailing portion. 4. A structure for connecting a heat insulating roof material in which a core material having heat insulating properties is interposed between two metal outer skins, and the fitting structure is fitted to one end of the roof material main body in the eaves ridge direction. Form the fitting recess at the other end of the protrusion, and extend the covering piece toward the eaves at the eaves side end on the surface layer side of the fitting protrusion and fitting recess, and use the eaves as the covering piece. Form a down piece close to the surface of the heat-insulating roof material on the side to form a heat-insulating roof material, and make the eaves-side and the ridge-side heat-insulating roof material have their fitting projections and fitting recesses fitted to each other. A connection structure for a heat insulating roof material, characterized in that a drainage space is formed between the descending piece of the heat insulating roof material on the ridge side and the heat insulating roof material on the eaves side. 5. The eaves side insulating roofing material portion covered with the covering piece is a nailing portion, and the back surface side of the nailing portion has an edge portion of at least one of the two outer skins. 5. The heat insulation according to claim 4, wherein the core is embedded in the core material to form an internal nailing piece, and the fixture is penetrated through the nailing portion and the internal nailing piece and is embedded in the roof substrate. Roof material connection structure. 6. The flat nailing portion is formed with a bank portion projecting upward on the eaves side, and a watertight material is interposed between the top surface of the bank portion and the back surface of the cover piece. The connection structure of the heat insulating roof material according to claim 5.