JPS5935694Y2 - External wall structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to external wall structures such as roofs and exteriors.

Conventional roofs and exteriors have been constructed by laying synthetic resin foam (hereinafter simply referred to as foam) on the base, for example, and then directly placing roofing materials or exterior materials (hereinafter simply referred to as exterior materials) on top of it in order to save energy. Increasingly, there are more and more structures in place.

The above form is inexpensive, easy to mold, and
Polystyrene foam is mainly used from the viewpoint of mold releasability.

However, when the temperature of the exterior wall material reaches approximately 80 to 90°C in midsummer, the heat resistance of this type of foam is 60 to 80°C, so it melts or deteriorates, forming voids between the exterior wall material and the foam, and reducing the heat insulation. However, it had the disadvantage of lacking compression resistance.

Furthermore, since the outer wall material and the foam are in direct contact, there is a drawback that the foam, the outer wall material, etc. corrode and deteriorate.

That is, since the foam contains an alkaline component, a catalyst for acidic components, and a hardening agent, this is gradually dissolved by the condensed water generated on the back surface of the exterior wall material.

In order to eliminate these drawbacks, the present invention sandwiched the foam between the base material and the exterior wall material between a composite sheet and a waterproof sheet, and interposed a roughly wedge-shaped heat insulating material with one end of the waterproof sheet protruding from the upper end of the foam. This is an exterior wall structure with high compression resistance, heat insulation, and weather resistance that protects the foam from heat, light, and solvents, and prevents corrosion and destruction of the exterior wall materials and foam by absorbing condensed water generated on the exterior wall materials. This is what we propose.

An embodiment of the outer wall structure according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic perspective view showing a case where the present invention is applied to an external wall structure, for example, a roof, and 1 is an external wall material (in this case, the roof material).

), the metal plate is formed, for example, into a rectangle as shown in FIG. 2 or a square (not shown).

To explain further, the outer wall material 1 includes an upper connecting part 2 formed at one end (so-called upper end) of the metal plate, an overlapping part 3 formed at the other end (so-called lower end), and overlapping parts 4 formed at the left and right ends. It is composed of

To explain further, the upper connecting part 2 has a rising part 2a that bends the upper end of the metal plate inward and has a height of 5 mm or more to make the roof look like a stepped roof. It is formed from a locking tongue piece 2b whose tip is bent inward and extended.

In addition, the retaining part 3 is formed by bending the other end of the metal plate into an upper seam shape, and the overlapping part 4 is formed by a predetermined width parallel to the side edges of both side ends of the metal plate, so-called right and left ends. Moreover, it is formed into an uneven stripe except for the rising portion 2a.

The overlapping portion 4 mainly serves to strengthen the waterproofness of the left and right connecting portions of the outer wall material 1, to strengthen the connecting portion, and to function as a guide.

Note that the angle θ1 between the surface 1a of the outer wall material and the rising portion 2a can be arbitrarily set depending on the structure of the outer wall base and the appearance of the outer wall.

Reference numeral 5 denotes a heat insulating material, which has an external shape corresponding to the outer wall material 1 as shown in FIG. 3, a so-called rectangular shape, or a square (not shown), and its longitudinal section is a generally wedge-shaped molded body with a closed angle.

That is, the heat insulating material 5 is formed from a foam 6 having a substantially wedge-shaped cross section, a composite sheet 7 attached to the front surface of the foam 6, and a waterproof sheet 8 attached to the back surface of the foam 6.

The above-mentioned foam 6 is particularly excellent in heat insulation and waterproof properties, and is lightweight with appropriate compression resistance, weather resistance, and fire resistance added if necessary.

Specific examples include polyurethane foam, polyisocyanurate foam, polyurea foam, polystyrene foam, epoxy foam, vinyl chloride foam, and the like.

In addition, substances 10 (shown in Figure 8) that improve fire resistance, compressive strength, sound absorption, etc. include borax, sodium metaborate, sodium silicate (powder), pearlite grains, vermiculite, aluminum hydroxide, and lead powder. and one or more of these substances per 100 parts by weight of the foam,
It is added in a proportion of 10 to 300 parts by weight.

In addition, as shown in FIG. 4, the composite sheet 7 has a hygroscopic paper 7a on the surface and a metal foil 7b that emits heat radiation and is highly waterproof on the back surface.
The waterproof sheet 8 has a length that protrudes from one end of the form 6 (the end of the thin wall part) by Δl, and is formed to have the same width as the form 6.

Particularly, the protruding portion Δl is for making the waterproof sheet completely laid on the outer wall base ground.

Reference numeral 9 denotes a mounting bracket (a hanger in this case), which bends the lower end of the upright part 9a to form a fixed part 9b, as shown in FIG. and a fitting portion 9C formed in the shape of an upper seam.

To explain further, the upright portion 9a has a height corresponding to the thick end portion 6b of the form 6, and mainly functions as a reinforcement and a stopper after the heat insulating material 5 is attached.

Further, the fixing portion 9b is useful for fixing the mounting bracket 9 to the outer wall base via the nail C after the fitting portion 9C is fitted to the outer wall material 1.

In addition, it is a bent-horn turtle. & corresponds to the roof slope.

Here, to explain a specific example of these members, L1 = 500 to 1000 mm, L2 = 5 to 1000 mm.
50mm, L3=500-1000mm, L4.
Ls=10~50mm, W1300~3600
mm, W2-5~50mm, W3-300~3600m
m, W4=5-500 mm, H1=5-30
mm, H2=0゜5~5mm, H3-5~30m
m, H4 is about 10 to 50 mm, and H5 is about 10 to 50 mm.

Of course, these lengths can be formed into arbitrary sizes and lengths depending on the purpose and use.

Next, an example of applying this structure to a roof will be explained.

First, it is assumed that a roof having a structure as shown in FIGS. 1 and 6 is to be formed.

It is assumed that the roofing board B has already been fixed on the rafters A to form a roof base.

First, in order to form the first stage of heat insulating layer along the eaves, a plurality of heat insulating materials 5 are brought into contact with their widthwise sides, and
It is laid horizontally (in the girder direction) on the shedding board B with the thick part 6b close to the eaves and the thin part 6a facing the ridge, with both upper and lower end surfaces flush.

Note that the heat insulating material 5 is fixed at appropriate locations on the roofing board B with nails C.

In addition, in order to roof the outer wall portion of the first stage, the rising portions 2b of the required number of outer wall materials 1 should be made flush with the upper end cross section of each of the first stage insulation materials 5, and both side ends The overlapping portions 4 are mutually overlaid and placed on the surface of the first stage heat insulating material 5.

After that, the fitting portions 9C of the plurality of mounting brackets 9 are respectively fitted to the locking tongue pieces 2b of the outer wall material 1, and the mounting brackets 9
9C of the fitting part 9C is fitted to the locking tongue piece 2b, and the upright part 9a of the mounting bracket 9 is connected to the upright part 2a of the outer wall material 1 and the heat insulating material 5.
After being placed on the fixing part 9b and the protruding part of the waterproof sheet 8 of the heat insulating material 5 in contact with the upper end end surface of the waterproof sheet 8, it is fixed to the outer wall base with nails C.

Furthermore, in order to form a second stage heat insulating layer, a retaining portion is attached to the fitting portion 9C of the mounting bracket 9 in which the locking tongue piece 2b of the outer wall material 1 is fitted to the upright portion 9a of the mounting bracket 9. 3 and stack it on the heat insulating material 5, fit the side end of the outer wall material 1 as in the first stage, and then attach the outer wall material 1 with the mounting bracket 9 in the same manner as in the first stage. What is necessary is to engage the locking tongue piece 2b and fix it to the outer wall base.

Therefore, in order to cover the entire roof, it is sufficient to repeat the above-mentioned structure sequentially to the third stage of heat insulating material and the nth stage of heat insulating material, such as the outer wall, up to the outer wall.

In other words, the outer wall base and the outer wall material 1.1', 1"...
・The longitudinal cross section is stepped in between, and the insulation material 5.5', 5
``...'' has a heat insulation layer with no gaps in the upper, lower, left, and right directions by utilizing the cushioning properties of the insulation material itself, so-called essentially having the insulation properties of one sheet of insulation material. The structure includes a heat insulating layer.

Further, a cross section of a roof constructed in this manner in the needle direction is, for example, a cross-sectional view as shown in FIG.

In addition, at this time, the connection part of the heat insulating material 5 and the connection part E of the outer wall material 1 do not necessarily coincide.

Further, although not shown in the drawings, it is preferable to insert a sacrificial board in the structure of the eaves part.

What has been described above is only one embodiment of the exterior wall structure according to the present invention, and it is of course possible to use this structure for exterior walls other than roofs, for example.

In this case, unlike the roof structure, the bonding of the external wall materials is sufficient to some extent for waterproofing, etc., and because the insulation material is filled between this and the rim, etc., there is no leakage of rainwater, etc., and the three-dimensional effect is overflowing. It is also possible to form an outer wall.

Moreover, as shown in FIG. 8, a sacrificial plate F can be interposed in the lower layer of the overlapping part.

Further, although not shown in the drawings, it is also possible to form uneven stripes on the entire surface of the outer wall material 1, and it is also possible to interpose a caulking material in the overlapping portion.

As described above, the exterior wall structure according to the present invention has the feature that by simply laying the insulation material directly on the base of the exterior wall, the waterproof sheets of the insulation material become a waterproof layer that overlaps each other from the ridge toward the eaves.

In addition, the foam is sandwiched between a composite sheet and a tarpaulin sheet, so it has mechanical strength.Furthermore, since the foam is protected by the composite sheet, the high heat of midsummer is greatly reduced and conducted, making it possible to maintain the foam as before. melt or
It has the characteristic that it never deteriorates.

Furthermore, since there is a composite sheet between the back side of the exterior wall material and the insulation material, even if dew condensation occurs on the back side of the exterior wall material, the paper sheet will absorb moisture, and the metal foil will prevent it from penetrating into deeper layers. It is characterized by controlling humidity by gradually releasing moisture absorbed when the temperature rises, thereby preventing the various components of the foam from dissolving, and also preventing corrosion of the exterior wall material.

In addition, although the heat insulating material, exterior wall material, and mounting hardware are all independent, each functions as a guide, making construction easier.

In addition, the insulation material is lightweight and has excellent workability.

Furthermore, because there is no corrosion or deterioration of the insulation material, the exterior wall structure has excellent compression resistance, heat insulation, and weather resistance.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing a part of the ridge direction when the external wall structure according to the present invention is applied to a roof, Figs. 2 to 5 are exploded perspective views of the constituent materials of the above structure, and Fig. 6 is the above FIG. 7 is a sectional view taken along the line X--X in FIG. 6, and FIG. 8 is an explanatory diagram showing another embodiment. 1... Exterior material, 2... Upper connection part, 3
...Engaging portion, 5...Insulating material, 9...
...Handle fittings.

Claims (1)

[Scope of utility model registration request] A rising part is formed at one end of a rectangular or square metal plate, and an upper connecting part is formed by bending the upper end of the rising part inward and extending, and the other end is bent into an upper seam shape to form an engaging part. and a synthetic resin foam with a substantially wedge-shaped cross section. A metal foil of a composite sheet made of paper and metal foil is adhered to the front side, a waterproof sheet is adhered to the back side, and a heat insulating material is integrally formed with an end extending from the upper end of the foam, and the lower end of the upright part is bent. and a fitting part having an upper end bent toward the opposite side of the fixing part, and a fitting part having a top end formed in the shape of a seam, and a plurality of sheets of the above-mentioned heat insulating material are attached to the outer wall base. Laying the insulation material with its side surfaces in contact with each other in the horizontal direction, with the thick part of the insulation material as the lower end, and placing the exterior material on the insulation material with the upper end of the exterior material matching the upper end of the insulation material. , overlap the left and right side ends of each exterior material, and the retaining part, fit the fitting part of the mounting bracket into each upper connecting part of the exterior material, and connect the upright part to the rising part of the exterior material, the heat insulation Place and fix the fixed part on the waterproof sheet protruding from the upper end of the heat insulating material while it is in contact with the upper end surface of the material, and then lay the next stage of heat insulating material on the mounting bracket in the same manner as above. An exterior wall structure comprising: an exterior material placed on the heat insulating material; and a structure in which a retaining portion of the exterior material is engaged with an upper connecting portion of the exterior material in multiple stages.