JP2004360374A - Heat insulating material and external facing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating material capable of having no worry about fire and facilitating the handling at an economically low cost while maintaining original heat insulation property and light-weight property without being burnt even if it is exposed to live charcoal such as leaping flames, etc. <P>SOLUTION: In the foaming system heat insulating material placed to the indoor side of an external facing of a building, the heat insulating material 1 is so constituted that fire preventive sheet 3 consisting of a non-combustible material is provided on the indoor side of the foamed heat insulating material 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heat insulating material provided on the indoor side of a roof material or an outer wall material and an exterior structure using the heat insulating material.
[0002]
[Prior art]
Currently, a structure has been proposed in which a synthetic resin board (heat insulating material) is interposed on the back side (indoor side) of an exterior material such as a roof or a wall.
As for the aspect, there are proposed one in which a heat insulating material is integrally provided in an exterior material, one in which an exterior material is made into two layers of an inner side and an outer side, and a heat insulating material is interposed inside, and one in which an exterior material and a heat insulating material are laminated. Have been.
In the case where the heat insulating material is in a bare state, such as that disclosed in Patent Document 1, the following problems are encountered.
Insulation materials used in this type of heat insulation structure are often self-extinguishing, but this self-extinguishing insulation material does not mean that the heat insulation itself does not burn, but that it does not have a fire source. It will burn out if there is a fire or flammable material in the vicinity. At construction work sites, there is a rare accident that this heat insulating material burns due to a spark or burns. A spark from the inside, a spark in a temporarily placed state before laying, etc.).
In addition, not only when it burns, but also when it does not burn, the place where the spark ignites is burnt and cannot be used as a product, so it is uneconomical to replace it.
In construction work, fire types (for example, welding sparks) are ubiquitous, and burning and igniting of a heat insulating material is a problem.
Regarding this point, in the case where the heat insulating material is disposed in a sandwich shape between the inner and outer metal outer materials, there is no fear of ignition of the heat insulating material, but the cost is increased by doubling the number of the outer materials. There are various problems such as an increase in weight, an increase in load on the frame, and inefficiency in workability.
[0003]
[Patent Document 1]
JP-A-7-189435
[Problems to be solved by the invention]
The problem to be solved is that, firstly, it does not burn even when exposed to a fire such as a jumping fire, and is economically inexpensive, easy to handle, and maintains fire insulation and lightweight performance. Secondly, a heat insulating material that does not cause any worries, a second heat insulating material that does not expose an ignited portion between adjacent heat insulating materials while being laid on the skeleton, and a third fire spark. It does not burn even when exposed to fires, etc., while maintaining its original insulation performance and lightweight performance, it is economically cheap, easy to construct, there is no risk of fire, and the load on the skeleton is reduced. A fourth object is to provide an exterior structure which is effective also as a countermeasure, and further provides an exterior structure in which there is no intrusion of a fire type on the indoor side of the heat insulating material including the adjacent portion, and the fire prevention measures are thorough.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a foamed heat insulating material provided on the indoor side of an exterior material of a building, wherein the heat insulating material is nonflammable on the indoor side of the foamed heat insulating member. A fire protection sheet made of a material is provided alongside.
Further, in the heat insulating material of the present invention, the fire prevention sheet is provided along with the side edge portion of the heat insulating member so as to be in contact with the fire prevention sheet of the adjacent heat insulating material in a state of being laid on the skeleton and to be continuous. And
The exterior structure using such a heat insulating material is characterized in that the above-mentioned heat insulating material is laid on a skeleton, and the exterior material is laid on the heat insulating material.
Further, the exterior structure of the present invention is characterized in that the above-mentioned fire protection sheet is configured to be in contact with and continuous with the fire protection sheet of the adjacent heat insulating material.
[0006]
The heat insulating member in the present invention refers to expanded polystyrene, expanded polyethylene, and the like, and includes all conventionally used expanded heat insulating materials.
The shape of the heat insulating member may be a known shape such as a corrugated plate shape or a flat plate shape, and the outdoor side may have a surface shape along the back surface of the exterior material.
The non-combustible fire prevention sheet is made of a known flexible non-combustible material such as aluminum, and refers to a thin feature such as a sheet material or a foil material along the indoor side of the heat insulating material. The fire prevention sheet is provided along the indoor side of the heat insulating member, but may be provided along the entire back surface of the heat insulating member or along the entire back surface and the side surface (side edge). Further, the fire prevention sheet may be bonded to the indoor side of the heat insulating member with an adhesive, or may be fixed with a fastener such as staples.
The exterior material refers to an exterior material such as a roof material and a wall material, and its material and shape are not particularly limited. When the exterior material is a roof material, any known roof material shape such as horizontal roofing, vertical roofing (tilling bar, flat, etc.), folded plate, etc. is not particularly limited.
The skeleton is an architectural structure such as a wooden structure, a steel frame structure, and a concrete structure, and refers to a skeleton to which fixing tools such as nails, screws, and anchors can be attached. Attachment of the heat insulating material and the exterior material to this skeleton, laying the heat insulating material directly on the skeleton, laying the exterior material on this heat insulating material, and fixing it to the skeleton side with a hook or a holding member etc. Alternatively, a heat insulating material may be laid on a rafter or a support member on the skeleton, an exterior material may be laid on the heat insulating material, and the heat insulating material may be fixed to the skeleton by a suspender, a holding member, or the like.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 to 3 show an embodiment of a heat insulating material of the present invention for a side-roofed roof. The heat insulating material 1 includes a foamed heat insulating member 2 and a chamber of the heat insulating member 2. It is composed of a non-combustible fire protection sheet 3 provided along the inside, and the side portions 1a of the heat insulating material 1 adjacent to each other in a state of being laid on the frame 8 described in the later thatched roof structure without any gaps. Each side is formed in a rectangular shape in a plan view that is linear and horizontally long so as to be continuous.
The heat insulating member 2 is a plate-shaped member made of a foamed resin material and elongated in the girder direction, and a ridge-side end of the ridge-side polymerized portion 2b is provided on a surface portion 2a capable of receiving the roofing roof plate 11. A protrusion 2c is provided upright along the edge, and a concave portion 2e is juxtaposed along the flow direction from a lateral groove 2d recessed along the eave side of the protrusion 2c to an eave-side end. The overlapping portion 2g on the eave side has an empty portion 2h in which the overlapped portion 2b can be arranged in a vertically overlapping state, and a draining portion 2i is vertically provided at the edge on the back eave side. In the heat insulating member 2, a laterally overlapped portion 2j is formed on the right side edge on the front side, and a laterally overlapped portion 2k is formed on the left side edge on the rear side so as to be vertically overlapped with each other.
The heat insulating member 2 is provided along the rear surface side (inside of the room) with a fire protection sheet 3 adhered thereto. The fire protection sheet 3 includes the entire rear surface portion 2m of the heat insulation member 2 and the lower half of each of the front, rear, left and right side surfaces 2n. The side sheet portions 3a of the side surface portions 2n of the adjacent heat insulating members 2 laid along the portion and laid on the frame 8 are in contact with each other without any gap and can be continued.
[0008]
FIGS. 4 to 6 show another embodiment of the heat insulating material of the present invention, which is for a roof with a horizontal roof. The heat insulating material 1 includes a foamed heat insulating member 4 and a heat insulating member 4. And the non-combustible fire protection sheet 5 arranged along the indoor side of the building, and the side portions 1a of the heat insulating material 1 adjacent to each other in a state of being laid on the skeleton 13 described in the later thatched roof structure without any gaps. Each side is formed in a vertically long rectangular shape in plan view so as to be continuous.
The heat-insulating member 4 is a plate-like member that is long in the direction of the eaves ridge made of a foamed resin material. The surface portion 4a that can receive the horizontal-roofing roofing plate 18 has a rafter 15 to be described later with a horizontal-roofing roof structure. Are recessed in the left and right parallel to each other, and a receiving portion 4c having a substantially convex cross section is provided at the center of the bottom surface of the groove 4b in the longitudinal direction. Downflow grooves 4d are formed along the bottom surfaces on both left and right sides so that rainwater can drain. A recessed mounting portion 4e is formed on the top surface of the receiving portion 4c in the concave groove 4b along the longitudinal direction at regular intervals in the longitudinal direction. In the heat insulating member 1, the overlapped portions 4 f and 4 g are provided on the front and rear edges on the front side, the overlap portions 4 h and 4 i are provided on the front and left edges on the back side, and the side edges of the adjacent heat insulating members 4 are connected to each other. To form a polymerizable top and bottom.
The heat insulating member 4 is provided along the rear surface side (inside of the room) with a fire protection sheet 5 adhered thereto. The fire protection sheet 5 includes the entire back surface portion 4j of the heat insulation member 4 and the lower half of each of the front, rear, left and right side surfaces 4k. The side sheet portions 5a of the side portions 4k of the heat insulating member 4 adjacent to each other in a state of being laid on the frame 13 so as to be continuous with each other without gaps.
[0009]
FIGS. 7 and 8 illustrate another embodiment of the heat insulating material of the present invention, which is a roofing material called a folded plate. The heat insulating material 1 includes a foamed heat insulating member 6, Side surfaces 1a of the heat insulating material 1 which are constituted by a non-combustible fire prevention sheet 7 provided along the indoor side of the heat insulating member 6 and which are adjacent to each other in a state of being laid on a frame 20 described later in a folded plate structure. Each side is formed in a vertically long rectangular shape in a plan view so that each side is straight so as to be continuous by contact without any gap.
The heat insulating member 6 is formed of a foamed resin material and has a generally U-shaped cross section which is long in the direction of the eaves ridge. Is formed with a fitted portion 6b which can be detachably fitted. At the upper end of the left and right side portions 6c of the heat insulating member 6, a receiving surface portion 6d capable of supporting the back surface of the upper edge portion 22e of the folded plate member 22 and a concave recess portion 6e in which the locking concave portion 22f of the folded plate member 22 is accommodated are arranged. It is provided and formed. The side portions 6f of the left and right side portions 6c are formed so as to protrude slightly outside the left and right side edges of the folded plate member 22, that is, the locking recesses 22f, and the side portions adjacent to each other when the heat insulating material 1 is laid. 6f are contacted without any gap.
[0010]
In addition, an overlapping portion 6g having a width extending from the side of the left fitted portion 6b to the right side of the fitted portion 6b is provided at the water-side end portion in the longitudinal direction of the heat insulating member 6, and a water-side end portion. The to-be-polymerized part 6h of the same width is formed so as to be vertically polymerizable, and the connection part in the longitudinal direction of the heat insulating material 1 is placed on the underwater to-be-polymerized part 6h adjacent in the longitudinal direction. The superposed portion 6g is superposed so as to be insulated and rained.
Further, the heat insulating member 6 is provided along the rear surface side (inside of the room) by bonding a fire protection sheet 7 to the rear surface side (indoor side). The side sheet portions 7a of the side portions 6f of the heat insulating members 6 adjacent to each other in a state of being laid on the frame 20 so as to be continuous with each other without gaps.
[0011]
FIGS. 9 and 10 illustrate a roof structure using the heat insulating material of FIG. 1 as an embodiment of the exterior structure of the present invention, and show a roof plate 9 laid on a frame 8 such as a steel frame. The rafters 10 are arranged and fixed by fasteners 5 so as to be continuous in the eaves ridge direction at predetermined intervals in the girder direction, and the heat insulating material 1 extends over the rafters 3 in the eaves ridge direction and the girder direction. The overlapping portion 2b at the eave side is superposed on the overlapped portion 2b at the ridge side end, and the side surface portion 1a and the side sheet portion 3a are continuously laid in an adjacent state in which there is no gap therebetween.
On the heat insulating material 1 arranged in a continuous manner, a roofing sheet 11 is laid, and the roofing sheet 11 of each stage has a ridge-side engaging portion 11a and an eave-side engaging portion 11b. It is engaged and connected, and in this engaged and connected state, it is fixed and roofed by the holding member 12 attached and fixed to the rafter 10.
[0012]
11 and 12 illustrate a roof structure using the heat insulating material of FIG. 4 as an embodiment of the exterior structure of the present invention, and show a roof plate 14 laid on a skeleton 13 of concrete or the like. In this case, the heat insulating material 1 is superimposed in the eaves ridge direction and the girder direction, the eaves-side end overlap portion 4h is superimposed on the eaves-side end portion 4f, and the overlap portion 4i is superposed on the eaves-side end portion 4g. Further, the side surface portion 1a and the side surface sheet portion 5a are continuously laid in an adjacent state where they are in contact with each other without any gap.
A rafter 15 is directly loosely fitted in the concave groove 4 b of the heat insulating material 1, and is fixedly attached to a stud bolt 17 by a nut 16. On this rafter 15, a roofing sheet 18 is laid, and the roofing sheeting 18 of each stage is connected by a ridge-side engaging portion 18a and an eave-side engaging portion 18b. In the engaged and connected state, the roof is fixed and hung by a hanging member 19 fixed to the rafter 15.
[0013]
13 and 14 illustrate a folded plate structure using the heat insulating material of FIG. 7 as an embodiment of the exterior structure of the present invention. A tight frame 21 is heat-insulated on a frame 20 such as a steel frame. It is fixed for each width pitch of the material 1. Between the right and left tight frames 21, the heat insulating material 1 is overlapped in the eaves ridge direction and the girder direction, and the overlapped portion 6g at the eaves side is superimposed on the overlapped portion 6h at the ridge end and the side surface portion 1a. And the side sheet portion 7a is continuously laid in an adjacent state where the side sheet portion 7a is in contact with no gap.
The folded plate material 22 laid on the heat insulating material 1 is formed by bending left and right side edges of a flat plate surface portion 22a obliquely upward toward the outside to form left and right rising portions 22b symmetrically. The rising portion 22b is formed with a fitting portion 22c bent toward the upper side. The fitting portion 22c has an outwardly convex shape, and a concave locked portion 22d is formed inside the fitting portion 22c so as to be lockable with the locking portion 23a of the cover member 23.
Further, the left and right rising portions 22b are formed by bending the upper edge 22e outwardly and obliquely upward substantially near horizontal from the upper end of the upper portion 22b, and by bending outwardly from the tip of the left and right upper edge 22e in a substantially U shape. The vertically extending locking recesses 22f are formed respectively, and the left and right locking recesses 22f are formed so as to be lockable with the locking projections 24c of the holding member 24.
The heat insulating material 1 is integrated with the folded plate member 22 and the left and right fitting portions 6b elastically with the left and right fitting portions 22c, respectively. The stop recess 22f is accommodated, and has a united structure that is detachable from each other.
[0014]
Between the heat insulating materials 1 which are adjacent to each other without any gap left and right via the side sheet portion 7a, a holding member 24 extending over the rising portion 22b of both folded plate members 22 is covered, and the left and right parallel shape of the holding member 24 is formed. The left and right folded plate members 22 are connected via the holding members 24 by locking the locking projections 24c with the locking concave portions 22f of the two folded plate members 22, respectively.
The holding member 24 is made of metal, and has an upper holding portion 24a extending along the upper edge portion 22e to the left and right of a central portion through which the fixing bolt 25 passes, and obliquely outward and downward from the tips of the left and right upper holding portions 24a. The extending horizontal holding portion 24b is extended along the upper portion of the rising portion 22b, and the locking projection 24c is formed at the left and right of the central portion so as to vertically extend in the left and right direction. The holding member 24 is integrally attached to the skeleton 20 side by fixing bolts 25 that pass through the space between the left and right side portions 1a from the upper side of the central portion and reach the tight frame 21, and connect the left and right folded plate members 22. The state is fixed.
Then, the locking portions 23a on both side edges of the cover member 23 are elastically locked to the locked portions 22d of the adjacent left and right folded plate members 22 connected and fixed by the holding member 24 and the fixing bolts 25, thereby holding. The connecting portion including the member 24 and the head of the fixing bolt 25 is covered with the cover member 23.
[0015]
【The invention's effect】
A. According to the first aspect, there is no burning even when exposed to a fire such as a jumping fire, and it is economically inexpensive, easy to handle, and has no fear of fire while maintaining the original heat insulating performance and lightweight performance.
B. According to the second aspect of the present invention, secondly, the ignition portion is not exposed between the adjacent heat insulating material while being laid on the skeleton.
C. According to the third aspect of the present invention, thirdly, it is economically inexpensive, easy to construct, and has no fear of fire while maintaining its original heat insulating performance and light weight performance without burning even when exposed to a fire such as a spark. In addition to this, the load on the building is reduced and it is effective for earthquake countermeasures.
D. According to the fourth aspect of the present invention, fourthly, there is no fire type intrusion on the indoor side of the heat insulating material including the adjacent part, and thorough fire prevention measures are taken.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional side view illustrating one embodiment of a heat insulating material of the present invention.
FIG. 2 is a front view showing a state in which an intermediate portion is omitted.
FIG. 3 is a perspective view showing a state in which an intermediate portion is omitted.
FIG. 4 is a longitudinal sectional view illustrating another embodiment of the heat insulating material of the present invention.
FIG. 5 is a plan view shown with intermediate portions omitted.
FIG. 6 is a side view shown with the middle omitted.
FIG. 7 is a front view illustrating another embodiment of the heat insulating material of the present invention.
FIG. 8 is a vertical cross-sectional side view shown with intermediate portions omitted.
FIG. 9 is a partial vertical cross-sectional side view illustrating one embodiment of the exterior structure of the present invention.
FIG. 10 is a partial vertical sectional front view.
FIG. 11 is a partial vertical sectional front view illustrating another embodiment of the exterior structure of the present invention.
FIG. 12 is a partial vertical sectional side view.
FIG. 13 is a partial vertical sectional front view illustrating another embodiment of the exterior structure of the present invention.
FIG. 14 is a partial vertical sectional side view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Insulation material 1a Side surface part 2, 4, 6 Heat insulation member 2a, 4a, 6a Surface part 2b, 4f, 4g, 6h Overlapping part 2c Protrusion part 2d Horizontal groove part 2e Depression part 2g, 4h, 4i, 6g Overlapping part 2h Empty part 2i Drainer 2j Lateral overlap 2k Lateral overlap 2m, 4j, 6i Back 2n, 4k, 6f Side 3, 5, 7 Fireproof sheet 3a, 5a, 7a Side sheet 4b Groove 4c Receiving section 4d Downflow groove 4e Recessed mounting part 6b Fitted part 6c Side part 6d Receiving surface part 6e Depressed recessed part 8,13,20 Building body 9,14 Field board 10,15 Rafter 11,18 Side roofing roof plate material 11a, 18a Building side engagement Part 11b, 18b Eave side engaging part 12 Holding member 16 Nut 17 Stud bolt 19 Hanger 21 Tight frame 22 Folded plate material 22a Plate surface part 22b Rising part 22c Fitting part 22d Locked part 22e Upper edge 22f Locking concave Part 23 cover member 23a locking part 24 holding member 24a upper pressing part 24b horizontal pressing part 24c locking protrusion 25 fixing bolt

Claims (4)

In the foam-based heat insulating material provided on the indoor side of the exterior material of the building, the heat insulator is provided along with a fireproof sheet made of a nonflammable material on the indoor side of the foamed heat insulating member. Insulation. The heat insulating material according to claim 1, wherein the fire protection sheet is provided along with the side edge portion of the heat insulating member so as to be in contact with the fire protection sheet of the adjacent heat insulating material in a laid state on the skeleton and to be continuous. An exterior structure, wherein the heat insulating material according to claim 1 is laid on a frame, and an exterior material is laid on the heat insulating material. The exterior structure according to claim 3, wherein the fire protection sheet is in contact with the fire protection sheet of the adjacent heat insulating material and is continuous therewith.

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