JP6742694B2 - Roof structure - Google Patents

Description

The present invention relates to a roof structure having improved earthquake resistance, waterproofness, insect repellency, workability, and the like.

In general, there are many commercially available roof materials formed by roll-forming, press-forming, or the like metal sheet materials, or roof structures formed by using roof tiles. (For example, refer to Patent Documents 1 to 4).

Japanese Utility Model Publication No. 51-127618 Japanese Utility Model Publication No. 52-034519 JP-A-58-150643 JP-A-8-068166

Patent Documents 1 and 2 describe a structure in which a wooden base plate is formed on a frame made of a wooden base and a roofing material is formed on the base plate. Further, Patent Document 3 describes a structure in which an ALC (lightweight cellular concrete) plate is formed on the lower ground of a wooden structure and a roofing material (roof) is formed on the ALC plate. Further, Patent Document 4 describes a structure in which a lightweight cellular concrete panel is used as a base plate on reinforced concrete. However, in Patent Documents 1 and 2, since the skeleton is made of wood, the strength is insufficient against shaking such as a large earthquake, and there is a risk of insect damage and decay in hot and humid areas. Further, in Patent Document 4, although the skeleton is reinforced concrete and therefore strong against shaking such as an earthquake, there is a problem in cost and workability because a lightweight cellular concrete panel is used as a base plate.

In order to solve such a drawback, the present invention forms a roof substrate by reinforced concrete construction, forms a steel frame substrate made of shaped steel on the reinforced concrete structure, and forms an insect-proof field board on the entire surface of the steel frame substrate. Provided is a roof structure in which a waterproof sheet is laid on the entire surface of a base plate, and a metal roof material is formed on the waterproof sheet by sandwiching a heat insulating material made of synthetic resin foam between a surface material and a back material .

As described above, according to the roof structure of the present invention, the structure of reinforced concrete structure-steel frame base-insect-proof base plate-waterproof sheet-metal roofing material (1) improves seismic resistance and durability To do. (2) It can prevent insect damage such as termites. (3) Total cost can be reduced. (4) Workability is improved. Furthermore, by fixing the roof material with the fixture without penetrating the insect-proof field board, (5) the waterproof property is further improved. There are features and effects.

It is explanatory drawing which shows a typical example of the roof structure which concerns on this invention. It is an expanded sectional view which shows the eaves tip part of a typical example of the roof structure which concerns on this invention. It is an expanded sectional view showing a typical example of the roof structure concerning the present invention. It is explanatory drawing which shows a typical example of the roofing material used for the roof structure which concerns on this invention. It is sectional drawing which shows one Example of the arabesque base and eaves arabesque used for the roof structure which concerns on this invention. It is an expanded sectional view showing the construction state of the eaves part of the roof structure concerning the present invention. It is explanatory drawing which shows a typical example of the construction order of the roof structure which concerns on this invention. It is explanatory drawing which shows a typical example of the construction order of the roof structure which concerns on this invention.

The roof structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing a typical example of a roof structure according to the present invention, FIG. 2 is an enlarged sectional view showing an eaves portion of a typical example of a roof structure according to the present invention, and FIG. 3 is a roof structure according to the present invention. It is an expanded sectional view showing a typical example.

4(a) and 4(b) are explanatory views showing a typical example of a roof material A including a metal roof material B, a heat insulating material C, and a back surface material D used in the roof structure according to the present invention.

As shown in FIGS. 1 to 3, the roof base α is composed of a reinforced concrete structure 1 for the main structural portions of columns and beams and the floor and ceiling.

Reinforced concrete structure 1 (RC structure) is a structure having both durability and strength due to the synergistic effect of tensile strength of iron and high compressive strength of concrete. In addition, in a hot and humid environment, there will be no insect damage caused by termites such as wood and deterioration due to decay.

Reference numeral 2 denotes a steel frame base, which is welded to an H-shaped steel material or the like on the reinforced concrete structure 1 or fixed by a fixing method such as bolts, nuts or anchor bolts. In the figure, a C-shaped steel material is formed vertically and horizontally. ..

3 is an insect-proof field board, and uses plywood, water-resistant plywood, structural plywood (OSB), cellulose fiber reinforced cement board, wood wool cement board, etc. that have strength, insect resistance, water resistance, and decay resistance. To do. It is also possible to impregnate these with an insect repellent to further improve the insect repellent property, and to prevent insect damage by termites and deterioration due to decay even in a hot and humid environment. Of course, the insect-proof field board 3 also functions as a fixed base for the roof material A.

Further, by forming the fixing tool β so as not to penetrate the insect-repellent base plate 3 with respect to the insect-repellent base plate 3, the insect-repellent field plate 3 can be fixed without making a hole, so that the waterproof property is improved. ..

4 is a waterproof sheet, which uses asphalt roofing, rubber asphalt roofing, etc., and is formed so that rainwater etc. that has invaded indoors from between the roofing materials A does not enter the insect-proof field board 3. Is.

The metal roof material B is, for example, a metal plate (color steel plate, copper plate, aluminum plate, titanium plate, stainless steel plate, sandwich steel plate, clad steel plate, etc.) formed by roll forming, press forming, extrusion forming, or the like. ..

Explaining further, the metal roofing material B has a long plate shape, and as shown in FIGS. 4A and 4B, a substantially horizontal decorative surface 5, a rear surface 6, and the decorative surface 5 under water. A stepped decorative surface 7 whose side end portion hangs indoors, and an insertion edge 8 formed by bending in a substantially U shape so as to open to the water side, and the decorative surface 5, the stepped decorative surface 7 and the insertion edge. A hook groove 9 having a substantially U-shape is formed from 8 and a male connecting portion 10 is formed.

Further, as shown in FIGS. 4(a) and 4(b), at the water upper end portion of the decorative surface 5, the insertion end formed by opening the tip of the decorative surface 5 downward to the water side and having a substantially U-shaped cross section. A fitting groove 11 that fits with the edge 8, a fitting edge 12 that is an upper edge of the fitting groove 11, and a fixing surface 13 are formed to form a female connecting portion 14.

The heat insulating material C functions as a waterproof material, a heat insulating material, a reinforcing material, a raising material, a soundproofing material, a sound absorbing material, a cushioning material, a fireproofing material, a dew condensation preventing material, etc., and mainly uses a synthetic resin foam. It is a thing. The material is made of a synthetic resin foam such as styrene foam, polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc. And a curing agent and a foaming agent are mixed and ejected onto the surface material or the back surface side of the back surface material and heated to cause reaction, foaming and curing to be formed.

Further, in the heat insulating material C, as various flame retardant materials, lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stones, shirasu balloons, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite, etc.) can be mixed to improve fire resistance and fire resistance.

The back material D is kraft paper, aluminum vapor-deposited paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric, etc. 1 Or a laminate of two or more kinds, or a sheet that is waterproofed or flame-retarded. Of course, the same material as the metal roof material B may be used.

E is an arabesque substrate, and as shown in FIG. 5(a), a planar fixing surface E1, a tongue piece E2 in which the ridge-side tip of the fixing surface E1 is folded back, and the eaves-side tip of the fixing surface E1 hang downward. The cover surface E3 and the tongue piece E4 in which the lower end of the cover surface E3 is folded back inward are formed in a long shape.

As shown in FIG. 5B, the eaves arabesque F has a planar fixing piece F1, a tongue piece F2 in which the ridge-side tip of the fixing piece F1 is folded back, and an eaves-side tip of the fixing piece F1 protruding upward. An engaging portion F3 composed of a piece F4 and an engaging piece F5 in which the tip of the rising piece F4 is folded back toward the eaves, a decorative piece F6 in which the base of the rising piece F4 hangs downward, and a lower end of the decorative piece F6 is inward. It is formed in a long shape from the tongue piece F7 folded back in one direction.

The arabesque base E and the eaves arabesque F are formed by, for example, roll forming, press forming, extrusion forming, etc. of a metal plate (color steel plate, copper plate, aluminum plate, titanium plate, stainless steel plate, sandwich steel plate, clad steel plate, etc.). Is.

The arabesque base E functions as a cover material, a waterproof material, and a reinforcing material for the eaves.

The eaves arabesque F functions as a cover material for the eaves portion, a fixing member for the eaves portion of the roof material A, and a start member for starting tension.

G is a double-sided adhesive tape, which is formed for continuously adhering between the eaves arabesque F at the eaves portion and the waterproof sheet 4 to improve waterproofness.

Next, the method for constructing the roof structure according to the present invention will be described in detail. First, as shown in FIG. 7a), a steel frame base 2 made of a C-shaped steel material is formed vertically and horizontally on a roof base α made of a reinforced concrete structure 1.

When the construction of the steel-frame base 2 made of C-type steel is completed, the insect-proof base plate 3 made of structural plywood is formed on the entire surface of the steel-frame base 2 made of C-type steel, as shown in FIG. 7B.

When the construction of the insect-proof field board 3 made of structural plywood is completed, as shown in FIG. 7(c), the arabesque base E and the eaves arabesque F are continuously attached to the eaves on the insect-proof field board 3 via the fixture β. Fix it.

When the construction of the arabesque ground E and the eaves arabesque F is completed, the double-sided adhesive tape G is continuously fixed on the fixing piece F1 of the eaves arabesque F as shown in FIG. 7C, and then a waterproof sheet made of asphalt roofing. Fix 4 to the entire surface from the eaves to the ridge.

When the construction of the waterproof sheet 4 made of asphalt roofing is completed, as shown in FIGS. 8(a) and 8(b), the male/female connection of the roof material A and the fixed piece 13 of the roof material A are made of structural plywood. The base plate 3 is fixed so as not to penetrate it by the fixture β. By sequentially repeating such steps, the roofing material A is constructed from the eaves to the ridge, and is formed as shown in FIG.

α Roof base β Fixture A Roof material B Metal roof material C Insulation material D Back material E Arabesque base E1 Fixed surface E2 Tongue E3 Cover surface E4 Tongue F Eaves arabesque F1 Fixed piece F2 Tongue F3 Locking part F4 Standing Piece F5 Engagement piece F6 Decorative piece F7 Tongue piece G Double-sided adhesive tape 1 Reinforced concrete construction 2 Steel frame base 3 Insect proof board 4 Waterproof sheet 5 Decorative surface 6 Back surface 7 Stepped decorative surface 8 Inserting edge 9 Hooking groove 10 Male connecting part 11 Fitting groove 12 Fitting edge 13 Fixing piece 14 Female connecting part

Claims (1)

A roof base is formed by reinforced concrete construction, a steel frame base made of shaped steel material is formed on the reinforced concrete construction, an insect-proof field board is formed on the entire surface of the steel-frame foundation, and a waterproof sheet is laid on the entire insect-proof field board. Then, a roof structure made of metal , in which a heat insulating material made of a synthetic resin foam is sandwiched between a surface material and a back material on the waterproof sheet.

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