JP2004084244A - Externally insulated external wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an externally insulated external wall structure which is excellent in waterproofing and easy to construct. <P>SOLUTION: The externally insulated external wall structure is formed of a heat insulator 3 arranged outside an external wall substrate 2, a waterproof sheet 4 waterproofing and covering the surface of the heat insulator 3, fixing screws 5 fixing the heat insulator 3 to the external wall substrate 2, spacers 6 securing the thickness of the heat insulator 3, furring strip hangers 7 fitted onto the respective fixing screws 5 on a front surface of the heat insulator 3 and fixing a furring strip 8, and the furring strip 8 fixed by the furring strip hangers 7. Each spacer 6 has a screw insertion hole 61 formed therein, and is penetrated through the heat insulator 3 in a thickness direction. Each furring strip hanger 7 has a collar portion 71 on one end thereof, which is attached to the heat insulator 3, and a screw insertion hole 72 into which the fixing screw 5 is insertable. Each fixing screw 5 is inserted into the screw insertion hole 72 formed in the furring strip hanger 7 and the screw insertion hole 61 formed in the spacer 6, and then screwed to the external wall substrate 2, to thereby fix the heat insulator 3 to the external wall substrate 2. The waterproof sheet 4 is pinched by the collar portions 71 of the furring strip hangers 7 and the furring strip 8. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a heat-insulating external wall structure formed by attaching a heat insulating material to the outside of a base of an external wall.
[0002]
Problems to be solved by the prior art and the invention
2. Description of the Related Art As a structure in which a heat insulating material is provided on an outer wall portion of a building such as a house, there is an outer-wall heat-insulating outer wall structure in which a heat insulating material is attached to the outside of an outer wall base. The outer-lined heat-insulating outer wall structure has advantages such as less heat-insulating defects and less wood material volume than a so-called filled heat-insulating outer wall structure in which a heat insulating material is filled between columns and studs.
[0003]
However, the conventional general outer-insulated heat-insulating outer wall structure constructed by the geos method or the like has the following disadvantages.
That is, it is necessary to insert a spacer for securing the thickness of the heat insulating material to a predetermined thickness inside the heat insulating material temporarily fixed to the outer wall base, but conventionally, the surface of the heat insulating material is covered. Since a hole having a diameter sufficient to allow the spacer to be inserted is formed in the waterproof sheet, the waterproof property at the hole was low. In addition, when a plurality of heat insulating materials are juxtaposed, the seam of the waterproof sheet is conventionally joined with an adhesive tape, but since the durability and reliability of the adhesive tape are insufficient, the joint of the waterproof sheet is not sufficient. Waterproof was low. And conventionally, great effort was required for construction in order to improve waterproofness.
[0004]
Accordingly, it is an object of the present invention to provide an outer heat-insulating outer wall structure that is excellent in waterproofness and easy to construct.
[0005]
[Means for Solving the Problems]
The present invention provides a heat insulating material disposed at a predetermined position outside an outer wall foundation, a waterproof sheet for waterproofly covering the surface of the heat insulating material, a fixing screw for fixing the heat insulating material to the outer wall foundation, and the heat insulating material A spacer that secures a predetermined thickness to a predetermined thickness, a body hanger that can be fitted to the fixing screw on the surface side of the heat insulating material and that fixes the body edge, and a body edge that is fixed to the body edge hanger. Outer spacer heat insulating outer wall structure, wherein the spacer has a screw insertion hole through which the fixing screw can be inserted, is disposed through the heat insulating material in the thickness direction, and the body edge hanger is Has a flange portion provided at one end thereof on the heat insulating material side, and has a screw insertion hole through which the fixing screw can be inserted, and the fixing screw is provided with the screw insertion hole of the body edge hanger. Through the hole and the screw insertion hole of the spacer The heat insulating material is fixed to the base of the outer wall by being screwed to a base, and the waterproof sheet is provided between the brim portion of the waist hanger and the waist or the end of the spacer and the waist. The object has been achieved by providing an outer heat-insulating outer wall structure sandwiched between the flanges of the hanger.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
One preferred embodiment of the outer heat-insulating outer wall structure of the present invention will be described with reference to FIGS.
The outer lining heat insulating outer wall structure 1 according to the first embodiment of the present invention includes a heat insulating material 3 disposed at a predetermined position outside an outer wall foundation 2, a waterproof sheet 4 for waterproofly covering the surface of the heat insulating material 3, and the heat insulating material. A fixing screw 5 for fixing the material 3 to the outer wall base 2, a spacer 6 for securing the thickness of the heat insulating material 3 to a predetermined thickness, and a fixing screw 5 that can be fitted to the fixing screw 5 on the surface side of the heat insulating material 3; A body edge hanger 7 for fixing the body edge 8 and a body edge 8 fixed to the body edge hanger 7 are provided.
[0007]
Further, in the external heat insulating outer wall structure 1 of the first embodiment, the spacer 6 has a screw insertion hole 61 through which the fixing screw 5 can be inserted, and penetrates the heat insulating material 3 in the thickness direction. The body edge hanger 7 has a flange 71 provided at one end thereof on the heat insulating material 3 side, and has a screw insertion hole 72 through which the fixing screw 5 can be inserted. The fixing screw 5 is inserted into the screw insertion hole 72 of the waist hanger 7 and the screw insertion hole 61 of the spacer 6 and is screwed to the outer wall base 2 to fix the heat insulating material 3 to the outer wall. The waterproof sheet 4 is fixed to the base 2, and is sandwiched between the flange 71 of the waist hanger 7 and the waist 8.
1A and 1B, the outer wall base 2, the heat insulating material 3, and the waterproof sheet 4 are illustrated in a rectangular shape in a front view, and the body edge 8 is illustrated in a short shape in a front view. However, in practice, the outer wall base 2, the heat insulating material 3, and the waterproof sheet 4 extend in four directions in a front view, and the trunk 8 extends in a long shape in a front view. Also, in FIG. 1A, the waterproof sheet 4 is shown by imaginary lines (two-dot chain line) for convenience, but actually, as shown in FIG. 8 is arranged.
[0008]
The outer wall base 2, the heat insulating material 3, the waterproof sheet 4, the spacer 6, the waist hanger 7, the waist 8 and the fixing screw 5 in the outer heat insulating outer wall structure 1 of the present embodiment will be described in more detail.
As shown in FIG. 1 and FIG. 2, the outer wall base 2 is provided with an outer wall base plate 22 serving as a base of the outer wall so as to sandwich a stud 21 or a pillar (not shown) standing upright from a base (not shown). An inner wall base plate 23 serving as a base of the inner wall is provided.
[0009]
Examples of the heat insulating material 3 include a fiber heat insulating material such as glass wool and a foamed resin heat insulating material such as expanded polystyrene. In the present embodiment, the heat insulating material 3 is made of glass wool and has a thickness of 2.5 to 6.0 cm. Material is used.
The waterproof sheet 4 includes a waterproof sheet such as asphalt felt, a moisture-permeable waterproof sheet, and the like. In the present embodiment, a moisture-permeable waterproof sheet having moisture permeability is used. Before construction, the waterproof sheet 4 has a long shape and is wound into a roll for convenience of handling and construction.
[0010]
As shown in FIGS. 1A and 2, the spacer 6 is a columnar member, in which the screw insertion hole 61 is formed in the longitudinal direction, and the length of the spacer 6 is determined by the length of the heat insulating material 3. It is slightly shorter than the thickness.
As shown in FIGS. 1 to 3, the trunk hanger 7 has a substantially hat-like shape with a flange 71 formed at one end and a male screw 73 formed at the other end. The screw insertion hole 72 is formed in the longitudinal direction.
[0011]
As shown in FIG. 1 and FIG. 2, the body edge 8 is formed by bending a long steel plate material into a U-shaped cross section. An elongated hanger insertion hole 81 through which the male screw 73 of the hanger 7 can be inserted is formed. As shown in FIG. 2, the width of the hanger insertion hole 81 is slightly larger than the outer diameter of the male screw 73 of the trunk hanger 7. Further, as shown in FIG. 2, the edge portions of the pair of bent portions 82 are contact edges with the outer wall material 9 (described later). An outer wall material hanger (not shown) for fixing the outer wall material 9 is attached to a predetermined position of the body edge 8 by welding, caulking, or the like.
[0012]
The fixing screw 5 is a wood screw. As shown in FIG. 2, the diameter of the screw head 51 is smaller than the outer diameter of the male screw 73 of the waist hanger 7 and larger than the inner diameter of the screw insertion hole 72. I have. The length of the fixing screw 5 is sufficiently larger than the sum of the length of the body hanger 7, the length of the spacer 6, and the thickness of the outer wall base plate 22, and the screw portion 52 of the fixing screw 5 is screwed to the stud 21. Can be included.
As shown in FIG. 2, the outer wall material 9 such as a siding material is fixed to the outside of the body edge 8 by the outer wall material hanger in a state where the outer wall material 9 is in contact with the edge of the bent portion 82 of the body edge 8. It is.
[0013]
Next, a procedure for constructing the outer heat-insulating outer wall structure of the first embodiment will be described with reference to FIGS. 1 and 2, and the configuration thereof will be further described in detail.
First, a required number of heat insulating materials 3 are juxtaposed and temporarily fixed at predetermined positions on the outer wall base 2. The temporary fixing is performed by hitting nails for temporary fixing at the four corners of the heat insulating material 3. Next, black ink is applied to the surface of the heat insulating material 3 at the position where the fixing screw 5 is inserted. The insertion position corresponds to a place where the screw portion 52 of the fixing screw 5 can be screwed in, such as the stud 21 or the pillar, on the outer wall foundation 2.
Next, the screw insertion hole 61 is aligned with the position mark attached to the surface of the heat insulating material 3, the spacer 6 is inserted and installed inside the heat insulating material 3, and one end 62 of the spacer 6 is brought into contact with the outer wall base plate 22. . In addition, since the heat insulating material 3 in this embodiment is made of glass wool, the spacer 6 can be easily inserted therein. After that, the screw insertion hole 72 of the body hanger 7 is aligned with the screw insertion hole 61 of the spacer 6, and the flange 71 of the body hanger 7 contacts the surface of the heat insulating material 3 and the other end 63 of the spacer 6. Let it.
[0014]
In this state, the fixing screw 5 is inserted into the screw insertion hole 72 of the body hanger 7 and the screw insertion hole 61 of the spacer 6 and screwed into the outer wall base plate 22 and the stud 21 of the outer wall base 2. In this case, the body hanger 7 is pressed against the outer wall base 2 by the screw head 51 of the fixing screw 5, and the surface of the heat insulating material 3 is pressed toward the outer wall base 2 by the flange 71 of the body hanger 7. At the same time, the thickness of the heat insulating material 3 can be secured to a predetermined thickness by the spacer 6.
[0015]
Next, the surface of the heat insulating material 3 is covered with the waterproof sheet 4 together with the waist hanger 7. A hole 41 having a diameter substantially equal to the outer diameter of the male screw 73 is formed at a position corresponding to the male screw 73 of the waist hanger 7 in the waterproof sheet 4.
Further, the waterproof sheet 4 is formed in a roll shape before construction, and can be covered over a plurality of heat insulating materials 3 while unwinding the roll. When joining a plurality of waterproof sheets 4, their ends are overlapped and the waterproof sheet 4 is attached to the surface of the heat insulating material 3. In particular, when a plurality of waterproof sheets 4 are spliced in the vertical direction, the end of the upper waterproof sheet is made to be on the front side of the end of the lower waterproof sheet in order to further improve the waterproofness of the joint. .
[0016]
Next, the hanger insertion hole 81 of the waist edge 8 is fitted into the male screw 73 of the waist edge hanger 7, and the brim portion 71 of the waist edge hanger 7 and the center in the short direction of the waist edge 8 (a pair of bent portions 82). With the waterproof sheet 4 held therebetween, the nut 83 is screwed into the male screw 73 of the waist hanger 7 to fix the waist 8 to the waist hanger 7.
Thereafter, the outer wall material 9 is fixed to the outer wall material hanger (not shown) provided on the body edge 8 in a state where the outer wall material 9 is in contact with the end portions of the pair of bent portions 82 of the body edge 8. .
[0017]
In the outer-wall heat-insulating outer wall structure of the first embodiment, the waterproof sheet 4 is sandwiched between the flange portion 71 of the waist edge hanger 7 and the central portion in the short direction of the waist edge 8. Excellent waterproofness. In addition, since the plurality of waterproof sheets 4 are overlapped with each other at their ends to cover the surface of the heat insulating material 3, the waterproofness at the joint of the waterproof sheets 4 is also excellent.
[0018]
Next, an outer heat-insulating outer wall structure according to a second embodiment of the present invention will be described with reference to FIGS. The outer heat-insulated outer wall structure of the second embodiment has the same configuration as the outer heat-insulated outer wall structure of the first embodiment, except for the configuration of the spacer. Therefore, hereinafter, the configuration of the spacer will be mainly described, and other configurations will be denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.
[0019]
As shown in FIG. 4 to FIG. 6, the spacer (node spacer) 6 ′ in the outer-wall heat-insulating outer wall structure of the second embodiment makes the end 62 ′ on the outer wall base 2 abut on the outer wall base 2. When pressed in the longitudinal direction of the spacer 6 ′ in a state in which the spacer 6 ′ is pressed, the vicinity 64 ′ of the spacer 62 ′ near the end 62 ′ is crushed in the longitudinal direction and is expanded in the transverse direction, When the end portion 62 ′ is fixed to the outer wall base 2 in a state where the vicinity 64 ′ of the end portion 62 ′ is crushed, the thickness of the heat insulating material 3 can be secured to a predetermined thickness.
[0020]
The knotted spacer 6 'will be described in detail. As shown in FIG. 6, the knotted spacer 6' has a large number of bendable aggregates 64a 'near an end 62'. When the 'is bent at the intermediate portion, the neighborhood 64' is crushed and expanded, and the total length becomes a predetermined length. In FIG. 6, in order to clearly show the configuration of the node-shaped spacer 6 ′ and the state in which the vicinity 64 ′ of the end portion 62 ′ is crushed, other than the node-shaped spacer 6 ′, the fixing screw 5, and the outer wall base 2. The constituent members are omitted and schematically shown. Also, in FIGS. 5 and 6, the thickness of the knotted spacer 6 is shown to be thicker than it actually is.
[0021]
With reference to FIGS. 5 and 6, a description will be given of a construction procedure of the outer lining and heat insulating outer wall structure of the second embodiment with respect to differences from the construction procedure of the outer lining and heat insulating outer wall structure of the second embodiment.
As shown in FIG. 5B, first, the heat insulating material 3 is temporarily fixed to the surface of the outer wall base plate 22 of the outer wall base 2. In a state where the vicinity 64 'of the end (one end) 62' of the node-shaped spacer 6 'is not crushed, the other end 63' of the node-shaped spacer 6 'and the flange 71 of the trunk hanger 7 are brought into contact. In the contact state, the fixing screw 5 is inserted into the screw insertion hole 72 of the trunk hanger 7 and the screw insertion hole 61 ′ of the knotted spacer 6 ′. In this state, the fixing screw 5 is pressed against the outer wall base 2 together with the knot-shaped spacer 6 ′ and the waist hanger 7 to insert the knot-shaped spacer 6 ′ into the heat insulating material 3. As it is inserted, one end 62 ′ of the node-shaped spacer 6 ′ comes into contact with the outer wall base plate 22 of the outer wall base 2, and the fixing screw 5 is further screwed into the outer wall base 2, so that the trunk hanger is provided. The node spacer 6 ′ is pressed in the longitudinal direction via 7. Then, due to the pressing force, the aggregate 64a ′ in the vicinity 64 ′ of the one end portion 62 ′ of the node-shaped spacer 6 ′ is bent at the intermediate portion, and the vicinity 64 ′ is crushed in the longitudinal direction and expanded in the transverse direction. Then, the entire length of the knotted spacer 6 'becomes a predetermined length. As a result, the thickness of the heat insulating material 3 is secured to a predetermined thickness in a state where the vicinity 64 'near the one end 62' of the node-shaped spacer 6 'is crushed. Thereafter, the waterproof sheet 4, the body edge 8, the outer wall material 9, and the like are constructed in the same manner as the construction procedure of the first embodiment, and the outer-insulated outer wall structure shown in FIG. 5A is obtained.
[0022]
When a node-shaped spacer whose end is crushed and expanded as in the second embodiment is used, the spacer is stably fixed to the outer wall base plate 22 of the outer wall base 2. In addition, the outer diameter of the spacer in the middle portion in the longitudinal direction can be reduced, and therefore, the insertion resistance when the spacer is inserted into the heat insulating material is small.
[0023]
The vertical holder of the present invention is not limited to the above-described first and second embodiments, and can be appropriately modified as described below, for example, without departing from the spirit of the present invention.
In the first and second embodiments, the waterproof sheet is sandwiched between the flange 71 of the waist hanger 7 and the waist 8. However, in the present invention, a waterproof sheet of another embodiment shown in FIG. 7 is provided. As described above, the waterproof sheet 4 may be sandwiched between the end of the spacer 6 and the flange 71 of the trunk hanger 7. In the outer heat-insulating outer wall structure of this another embodiment, as in the first and second embodiments, the waterproofness near the spacer is excellent.
[0024]
In the first and second embodiments, the fixing screw 5 is screwed into the stud 21 of the outer wall foundation 2, but in the present invention, the fixing screw may be screwed into the pillar of the outer wall foundation. . In the first and second embodiments, the nut 83 is screwed into the male screw 73 of the waist hanger 7 to fix the waist hanger 7 and the waist 8. Can also be adopted.
Further, the space between the studs, the pillars, and the like in the outer wall base may be filled with a fibrous heat insulating material to further improve the heat insulating effect.
When a foamed resin-based heat insulating material is used as the heat insulating material, it is difficult to press-fit the spacer into the heat insulating material.Before inserting the spacer, a hole having a diameter substantially equal to the outer diameter of the spacer is inserted into the heat insulating material. It is preferable to form them.
[0025]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the outer heat insulation outer-wall structure of this invention, it is excellent in waterproofness and construction is easy.
[Brief description of the drawings]
FIGS. 1A and 1B are diagrams showing a heat-insulated outer wall structure of a first embodiment of the present invention, wherein FIG. 1A is a schematic exploded perspective view, and FIG. FIG.
FIG. 2 is a sectional view taken along the line XX shown in FIG. 1 (b).
FIGS. 3A and 3B are diagrams showing a waist hanger in the outer heat-insulating outer wall structure of one embodiment of the present invention, wherein FIG. 3A is a plan view and FIG. 3B is a YY shown in FIG. It is sectional drawing.
FIG. 4 is a schematic cross-sectional view illustrating a heat-insulated outer wall structure of a second embodiment of the present invention.
FIGS. 5A and 5B are cross-sectional views illustrating a heat-insulating outer wall structure of a second embodiment of the present invention, wherein FIG. 5A is a view illustrating a state after construction, and FIG. It is a figure which shows a procedure typically.
FIGS. 6A to 6C are schematic views showing a knotted spacer in the outer-walled heat-insulating outer wall structure according to the second embodiment of the present invention. FIGS. It is a figure which shows a going state in order.
FIG. 7 is a cross-sectional view showing a heat-insulated outer wall structure of another embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 outer heat insulating outer wall structure 2 outer wall base 21 stud 22 outer wall base plate 23 inner wall base plate 3 heat insulating material 4 waterproof sheet 41 hole 5 fixing screw 51 screw head 52 screw part 6 spacer 6 'knotted spacer 61, 61' screw Insertion holes 62, 62 'end (one end)
63, 63 'Other end 7 Body hanger 71 Collar 72 Screw insertion hole 73 Male thread 8 Body rim 81 Hanger insertion hole 82 Bend 83 Nut 9 Outer wall material

Claims (5)

A heat insulating material disposed at a predetermined position outside the outer wall base, a waterproof sheet for waterproofly covering the surface of the heat insulating material, fixing screws for fixing the heat insulating material to the outer wall base, and a predetermined thickness of the heat insulating material External lining insulation provided with a spacer to secure a thickness, a rim hanger that can be fitted to the fixing screw on the surface side of the heat insulating material and fixes the rim, and a rim fixed to the rim hanger An outer wall structure,
The spacer has a screw insertion hole through which the fixing screw can be inserted, and is arranged to penetrate the heat insulating material in a thickness direction thereof,
The waist hanger has a flange disposed at one end thereof on the heat insulating material side, and has a screw insertion hole through which the fixing screw can be inserted,
The fixing screw is screwed to the outer wall base by inserting the screw insertion hole of the body hanger and the screw insertion hole of the spacer, and fixes the heat insulating material to the outer wall base.
An outer heat-insulating outer wall structure in which the waterproof sheet is sandwiched between the collar portion of the trunk hanger and the trunk or between an end of the spacer and the collar portion of the trunk hanger. When the spacer is pressed in the longitudinal direction of the spacer in a state in which the end on the outer wall base side is in contact with the outer wall base, the vicinity of the end of the spacer is crushed in the longitudinal direction and the short side direction. When the end is fixed to the outer wall base in a state where the vicinity of the end is crushed, the thickness of the heat insulating material can be secured to a predetermined thickness. 2. The external heat-insulating outer wall structure according to claim 1. 3. The external insulation and heat insulating outer wall structure according to claim 1, wherein a plurality of the waterproof sheets are provided on the surface of the heat insulating material with their ends overlapping each other. 4. The external insulation and heat insulating outer wall structure according to any one of claims 1 to 3, wherein the fixing screw is screwed to a pillar or a stud constituting the outer wall base. The lined heat-insulated outer wall structure according to any one of claims 1 to 4, wherein an outer wall material is fixed to an outside of the trunk edge.

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