JP2003138664A - Roof insulation construction for house using roof panel with integrated rafters - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress heat from the outer surface of a roof by using roof panels corresponding to all of the three elements of heat transmission including conductance, convection and radiation. SOLUTION: A top surface sheet 21, a middle sheet 22 and a bottom sheet 23 each having radiated heat reflecting aluminum foil are laid and air layer space S is made between neighboring sheets by placing sheet-raising pieces, mutually fixed radiation shield members 2 are prepared, the top of insulation member 3 integrated and fixed to roof rafters is covered and protected by the radiation shield member and used as roof panel A and laid on roof truss thereby forming a roof insulation construction for house having ventilating ability, radiation heat blocking ability, and insulation against transmitted heat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to provide a house in which a roof of a house is constructed by using a new roof panel excellent in air permeability and heat insulating property, which is easy to construct and energy saving. Yes, it belongs to the field of residential construction.

[0002]

2. Description of the Related Art In housing construction, it is an important issue from the viewpoint of living environment and roof durability to provide the roof structure with air permeability and heat insulating property. The method of upholstering and the method of filling the insulating material between the roof rafters are implemented. The external heat insulation is advantageous in that it also insulates the rafter itself, but there is a problem that the thickness of the heat insulating material is restricted due to the fixing of the heat insulating material.
By changing the height of the rafters, the heat insulating layer can be freely selected, and compared to the outer covering, the number of steps up to the construction of the roof underlining can be reduced and the construction can be done rationally.

[Conventional Example 1] FIG. 8 is a typical example of conventional filling heat insulation. As shown in FIG. 8 (A), a roof subbing material such as plywood is nailed to a rafter of a shed, and the upper end side surface of the rafter. A ventilation base material is nailed to the ventilation base material, and as shown in FIG. 8 (B), a windproof layer such as a moisture-permeable waterproof sheet or plywood is nailed to the ventilation base material, and the ventilation layer is provided in the gap between the roof subbing material and the windproof layer. Then, as shown in Fig. 8 (C), insert a heat insulating material plate, etc. cut according to the size of the rafters from the inside of the rafters, and fix it with nails so that it does not slip off. From the side, a moisture-proof layer such as PVC film is fastened to the rafters with tacker nails.

[Prior Art Example 2] FIG. 9 is a proposal for a ventilated roof panel which is thin and has excellent heat insulation and flexural rigidity (Japanese Patent Laid-Open No. Hei 8-291600), and is suitable for rafters on both sides and the center. A lattice frame is formed with the connecting bars as horizontal members arranged at intervals, a ventilation hole is cut out in a part of the upper surface of the connecting bar, and a ventilation gap is formed on the lower surface of the field board stretched and fixed on the upper surface of the rafter. It is possible to use a heat insulating material such as glass wool that easily wipes out the outside air by filling the heat insulating material and placing a heat insulating sheet made of plastic embossed between the heat insulating material and the base plate. The backup function of the heat insulating material and the base plate is achieved, and the movement of the heat insulating material is suppressed, and the outside air can be conducted by the interval between the convex portions and the ventilation port of the connecting bar.

[0005]

In the conventional example 1, an effective ventilation layer can be formed, and a heat insulating material having a desired thickness can be provided by selecting the height of the rafters, but it takes time and labor for the construction. The heat insulation material becomes a heat storage body by heating from the roof, and even if the outside air temperature decreases at night, a certain amount of heat will still be conducted and dissipated to the inside of the house. Further, in the conventional example 2, the connecting rails forming the lattice frame are an important factor for omitting the interior finishing material, and a synthetic resin material having excellent durability and heat insulating properties is selected as the heat insulating sheet. However, it does not have a heat ray reflecting function, and the formation of ventilation holes with the frame material and the formation of a lattice frame are complicated, and moreover, the conduction heat from the heat insulating sheet is added to the heat insulating material. Play a function. The present invention, which is not paid attention in these conventional examples 1 and 2, blocks the application of radiant heat from the outside to the roof heat insulating material with a heat shielding material, and blocks and reduces heat storage in the heat insulating material, which is completely new, and By using a roof panel that is of a different type and has a simple structure, it is intended to provide a highly practical roof insulation method that is significantly superior in construction and function.

[0006]

The present invention is, for example, as shown in FIGS. 1 and 3, a plurality of upper and lower sheets including at least a top sheet 21 and a bottom sheet 23 between at least two parallel roof rafters 1. Of the sheet materials 21, 22, and 23, and the heat insulating material 2 whose upper surface is covered and protected by the heat shield material 2 which has a radiant heat reflecting function on the sheet surface and an air circulating function by the air layer space S between the sheets is fixedly integrated. As shown in FIG. 7, the roof panel A is stretched over the roof structure via the roof rafters 1, and the roof underlaying material 7 and / or the roof material 8 is stretched over the roof panel A, so that heat insulation can be achieved. The material 2 is a roof heat insulating structure for a house in which outside air is conducted and at the same time, heating by a heat ray from the roof surface is blocked to reduce heat storage in the heat insulating material 3 (claim 1).

Incidentally, "a plurality of upper and lower sheet materials 21, 22, 2 including at least the upper sheet 21 and the lower sheet 23
3 "is a plurality of sheets including an upper sheet 21 and a lower sheet 23.
It is meant to include only a two-layer form or a multilayer form in which the intermediate sheet has a plurality of layers. Further, the roof rafter 1 and the heat insulating material 3 may be fixed to the roof panel A as long as the heat insulating material 3 does not fall off during the construction of the roof panel A and during the life of the roof panel A. Alternatively, a heat insulating material may be filled and foamed and integrated, or a heat insulating material as a molded plate may be bonded and integrated with the side surface of the roof rafter 1 by using an adhesive having a strong affinity with the heat insulating material. In addition, the heat insulating material 2 may be coated on the upper surface of the heat insulating material 3 by fixing the roof rafter 1 and the heat insulating material 3 to one body and then bonding the lower surface of the heat insulating material 2 produced in advance onto the heat insulating material 3. ,
Insulation between the rafters of the heat insulating material may be performed by integrally fixing the heat shield 2 at the time of foam molding by the foam solidification adhesive force of the heat insulating material, or
The heat shield 2 may be placed on the heat insulating material 3 integrally fixed to the rafter 1, and only the uppermost sheet of the heat shield may be attached to the rafter 1.

Further, the roof rafter 1 and the roof base material 7 such as plywood.
When there is a space between the lower surface of the roof underlaying material 7 and the upper surface of the heat shield 2 when it is struck, in order to guarantee the heat reflection function of the upper surface of the heat shield, in this case, The intended purpose can be achieved by providing the reflective layer only with the top sheet 21. Further, even when the upper surface of the heat shield 2 and the upper surface of the rafter 1T are flush with each other and the lower surface of the roof underlaying material (field board) and the upper surface of the heat shield contact each other, a slight air layer exists on the upper surface of the heat shield. Because
The top sheet also exhibits a heat reflection function to some extent, but in this case, if the radiant heat reflection function is also given to the next layer sheet of the heat shield 2, the top sheet 21 becomes dirty on the surface and the ground plate (under the roof). Even if the heat-reflecting function is lost to some extent due to close contact with the upholstery material, the heat-shielding material as a whole exhibits a complete heat-reflecting function. Therefore, the "radiation heat reflection effect on the surface of the sheet" is intended only for the upper sheet alone, the cooperative action between the upper sheet and the next layer sheet, or the cooperative action between the next layer sheet and the sheet immediately below. Since it can be achieved, the term "sheet surface" broadly means the surface of the heat shield constituting sheet.

In the roof heat insulating structure of the present invention, since the heat insulating material of the roof panel conducts outside air from the eaves side to the ridge side,
Condensation can be prevented and heat can be released favorably by the air flow, and heating of the heat insulating material 3 by reflecting the load heat rays from the roof surface side by the heat insulating material 2 can be appropriately blocked, and the heat storage of the heat insulating material 3 can be prevented. The heat insulation material with a heat shield can exert a large heat insulation effect with a small amount of heat storage, and can adapt to a decrease in outside air temperature at night, etc. in a relatively short time, thus saving cooling energy. Can be achieved, which is advantageous for saving energy in housing. Moreover, the roof panel integrated with rafters has a simple structure regardless of its excellent air permeability and heat insulation properties, so that it can be reasonably produced as a homogeneous product in the factory and is easy to install on site. Yes, a highly functional insulated roof can be easily and reasonably constructed.

Further, the heat shield 2 is provided with a plurality of sheets 21, 22 and 23 having at least the upper surface sheet 21 and the next layer sheets 22 and 23 each having a heat reflection layer on the upper surface thereof, and the sheets can be laid down between the respective sheets. It is preferable to provide an air layer space S penetrating in the longitudinal direction by the standing pieces 24, 25 (claim 2). In addition, the meaning of the "next layer sheet 22 (23)" means that when the heat shield has a two-layered form and the air layer space S is one layer, the sheet of the next layer is the lower face sheet 23, and the heat shield is When the air layer space S has two layers in the three-layer configuration, the next sheet is the top sheet 2.
1 means the intermediate sheet 22 immediately below. In this case, even if the heat-reflecting layer of the top sheet 21 deteriorates in heat reflecting function due to dirt or the like, the next-layer sheets 22 and 23 can complement the decline in function of the top sheet, and of course, the standing pieces 24 and 25 can be laid down. Since it is supported by the base and is deformable in the width direction, even if the top sheet is pressed by the installation work of the roof underlining (field board) on the rafters, the top sheet will be adaptively displaced and the heat reflection function of the top sheet 21. It is possible to prevent the complete adhesion of the entire surface with the roof sub-lining material that would cause Therefore, the top sheet 21
Even if the surface of the roof panel is the same level as the upper surface 1T of the rafter 1, the roof can be installed rationally without considering damage to the heat reflection layer of the upper sheet.

Further, it is preferable that the roof rafter 1 of the roof panel is nailed and fixed to the roof frame, and the roof subbing material 7 is fixed to the rafter 1 of the roof panel A while keeping the void layer So on the upper surface of the heat shield 2. (Claim 3). In this case, the formation of voids on the top surface of the heat shield can be easily performed if the roof panel is made so that the top surface of the rafter is higher than the top surface of the heat shield, and if the height of the rafter is low, the rafter The roof subbing material 7 may be nailed and fixed to the upper surface of 1 through a piece of wood. If there is a void layer between the upper surface of the heat shield 2 of the roof panel and the roof underlayment 7, the radiant heat reflection effect of the upper sheet of the heat shield 2 can be fully exerted, and in this case, the upper sheet 21 It is also possible to use a heat shield having a radiant heat reflection layer provided only on it.

The invention of the rafter integrated roof panel of the present invention comprises a plurality of upper and lower sheet materials 21, 22, 23 including at least an upper sheet 21 and a lower sheet 23 between at least two parallel roof rafters 1, and A heat insulating material 3 having an upper surface covered with a heat shield 2 having a radiant heat reflecting effect on the surface and an air circulation effect by the air layer space S between the sheets is fixed (claim 4).

The meaning of "including at least the top sheet 21 and the bottom sheet 23" is that the heat shield 2 is the top sheet 21.
And the lower layer sheet 23 only have a two-layer structure and the air layer space S
1 is a single layer, as in the embodiment, the heat shield 2 is a three-layer type including a single intermediate sheet 22, and the air layer space S has two layers, or the heat shield is 4 layers. It is meant to include a layer form. Further, the meaning of "radiation heat reflection effect on the sheet surface" means that the radiation heat reflection effect only on the surface of the upper sheet 21 of the heat shield material, the radiant heat reflection effect on each surface of the plurality of sheets, or the upper sheet. Except for the above, it is meant to include the effect of reflecting radiant heat on the surface of the other sheet.
If only the radiant heat reflection effect is exerted, it is preferable that the roof subbing material 7 fixed to the upper surface of the rafter and the upper sheet 21 have an air layer gap in order to fully exhibit the reflection function.

In this case, if the number of roof rafters 1 in one roof panel is increased, it is advantageous to improve the efficiency of roof construction, but the panel width becomes large and handling becomes disadvantageous. The number of rafters should be determined from the transportation and storage aspect. Further, the fixing of the rafters 1 and the heat insulating material 3 needs to be carried out to the extent that the heat insulating material 3 does not fall off from the rafters 1 even when an external force such as an earthquake acts during the roof panel construction and during the service life. Therefore, it is preferable that the side surface of the rafter is roughened or uneven to improve the adhesiveness and the heat insulating material is formed by the injection foaming means. Further, the heat insulating material 3 may be bonded to the rafter 1 with an adhesive having an affinity with the heat insulating material 3, but in this case, there is no hindrance to the attachment of the roof panel A to the roof frame, for example, a heat shield and If the face material (roof underlaying material) is fixed to the heat insulating material fixing area in advance, the roof rafters will be firmly fixed to each other, which is effective in preventing the adhered plate-shaped heat insulating material from falling off. Moreover, even if the lower surface of the heat insulating material 2 is fixed to the upper surface of the heat insulating material 3 by adhesion or the like, the heat insulating material 2 is placed on the heat insulating material 3 in order to protect the heat insulating material 3 from being covered by the heat insulating material 2. The uppermost sheet of the heat shield 2 may be fixed to the rafter 1 with nails or adhesive tape.

Therefore, the roof panel of the present invention can be easily roofed by simply striking the roof rafter 1 having the integrated panel to the eaves girder, the main house, the purlin, etc. of the shed structure with a nail. The outside air is conducted to the air layer space S of the heat shield 2 to prevent dew condensation and prevent excessive heating in the roof panel, and heat ray heating from the outer surface of the roof is blocked by the heat reflection layer on the surface of the heat shield 2. The heat storage of the heat insulating material 3 can be reduced, and the heat radiation of the heat insulating material 3 as a heat storage body can be suppressed to the minimum when the outside air temperature decreases at night or the like, providing an excellent living environment.

In the heat shield 2 of the roof panel A having a heat reflection layer, a plurality of sheets 21, 22 and 23 are fixed by a group of foldable standing pieces 24 and 25, and each sheet 21 and 22 is fixed.
It is preferable that the air layer space S that penetrates in the longitudinal direction is formed between the Nos. 2 and 23 (Claim 5). In this case, the heat-reflecting layer may be provided only on the upper surface sheet 21, or the heat-reflecting layer may be provided on the upper surface sheet, the next layer sheet, all the constituent sheets, or other sheets except the upper surface sheet. . Further, for the heat reflection layer, it is advantageous in terms of manufacturing and function that a metal foil such as an aluminum foil having excellent radiant heat reflectivity is formed on the surface of the sheet by adhering, but a metal vapor deposition film is formed on the surface of the sheet. It is also possible to do so.

Therefore, the heat shield 2 is composed of a plurality of sheets 21, 2.
Since 2 and 23 are fixed to each other by a group of foldable standing pieces 24 and 25, the heat shield 2 is pressed into a laminated state and handled before the roof panel is manufactured, which facilitates maintenance management and shields. Since it is possible to bond the heat insulating material 2 to the heat insulating material 3 in a laminated form, the heat insulating material 2 can be handled as if it were a single sheet and the bonding work can be facilitated, and the heat insulating material 2 can be attached to the rafter 1. In the case of fixing the roof panel, it is sufficient to combine the heat shield 2 when the roof panel is used for construction, and the production and maintenance of the roof panel can be rationalized.

The heat shield 2 is composed of a plurality of sheets 21,2.
It is preferable that the sheets 2, 23 and the standing pieces 24, 25 are made of a paper material, and the top sheet 21 and the next layer sheets 22, 23 are provided with a heat-reflecting aluminum foil layer on the surface (claim 6). In this case, since the paper material has good adhesiveness to the adhesive, it is easy to fix the multiple sheets and the upright pieces, and it becomes easy to fabricate the heat shield, and the sheet-like heat-reflecting aluminum foil and the sheet-like heat shield Adhesion processing with the material constituent members (a plurality of sheets, standing pieces) is also facilitated. Also, the aluminum foil is typically 6 × 10.
Even if it is a commercial product with a thickness of ^{−3 to} 6 × 10 ⁻² mm, it has a microscopically flat surface and does not have pinholes. The radiant heat reflection layer is relatively inexpensive and can be easily formed, and the heat shield 2 that exhibits a complete radiant heat (heat ray) reflection function can be obtained at low cost.

The heat shield 2 is a top sheet 2 of paper material.
1. The standing piece 2 in which the intermediate sheet 22 and the lower sheet 23 have a heat-reflecting aluminum foil layer on the surface and can be bent at the bending portion r.
The folding curved surfaces 24 ′ and 25 ′ at both ends of the groups 4, 4 and 25 are fixed to the upper sheet 21 and the lower sheet 23, and the folding curved surfaces 22 ′ at both ends of the intermediate sheet 22 which is freely bendable at the folding portion r are raised pieces. Fixed to 24, 25 groups, each sheet 21, 22, 2
A structure in which an air layer space S penetrating in the longitudinal direction between the three is opened is preferable (claim 7).

In this case, since the paper material is excellent in adhesiveness to the adhesive and easy to fold in, after the aluminum foil is attached to the surface of each sheet, as shown in FIG. The pieces 24 and 25 are placed horizontally, and the bent surfaces 24 'and 25' of the upright pieces 24 and 25 and the bent surface 22 of the intermediate sheet 22 are placed.
After making a crease on ′, applying a sizing agent to each fold curved surface and pressing each constituent member together allows the heat shield 2 to be formed in a laminated form, so that the roller device is attached to each sheet of aluminum foil. First of all, the mutual fixing of the sheets 21, 22, 23 and the standing pieces 24, 25 is also rationalized in the flow process of crease formation → folding → gluing → pressure bonding → fixed-size cutting while supplying all to the roller group device in a sheet state. Can be manufactured Therefore, the heat shield 2
Is preliminarily manufactured and stored in a laminated form, and when the roof panel is manufactured, the lower sheet 23 of the heat shield 2 in a laminated state is fixed on the heat insulating material 3, and then the upper sheet 21 is pulled to raise the standing piece 2.
Since it is enough to stand 4, 25, the roof panel can be manufactured reasonably and easily.

Further, it is preferable to fix horizontal frame members 4 defining both ends of the heat insulating material 3 between the roof rafters (claim 8).
In this case, if it is necessary to provide heat insulation over the entire length of the roof panel A, the horizontal frame members 4 may be fixed to both ends of the roof rafter 1. Further, since each roof rafter 1 forms a rigid structure frame with the horizontal frame member 4, there is no concern that expansion of the roof rafter spacing will occur even during the life of the roof panel. It suffices that the heat insulating material 3 be firmly adhered to the heat insulating material 3, and the heat insulating material 3 can be easily fixed by the fitting adhesion of the plate-shaped heat insulating material or the filled foamed heat insulating material.

In addition, the roof panel is formed by injecting and foaming the heat insulating material 3 from the horizontal frame member 4 into the space V surrounded by the roof rafter 1 and the horizontal frame member 4, to form the roof rafter 1, the horizontal frame member 4 and the lower surface. Seat 23
Is preferably integrated by the solidification adhesive force of the foamed heat insulating material 3 (claim 9). When injecting and foaming insulation material,
As shown in FIG. 3, kraft paper is laid on the molding table as a mold release material, the laminated heat shield 2 is placed on the horizontal frame member 4, and the template 32 is placed on the heat shield 2, The injection hole O1 may be arranged in the horizontal frame member 4, and the exhaust hole O2 may be arranged in the other horizontal frame member 4. The roof panel of this structure has excellent rigidity because it is an integral filling of the heat-insulating material into the frame body having a large shape retention formed by the horizontal frame member 4 and the rafters, and is a roof panel in which the heat-insulating material does not fall off. , Roof panels can be easily manufactured.

In the roof panel, the horizontal frame member 4 is the heat insulating member 2.
It is preferable that the upper and lower surfaces are flush with the upper and lower surfaces of the heat insulating material 3 (claim 10). In this case, since the horizontal frame member 4 does not interfere with the air layer space S of the heat shield on the heat insulating material, there is no hindrance to the outside air conduction of the roof panel, and the horizontal frame material is used even when the mold is clamped for injecting the heat insulating material. The material 4 can favorably support the template 32 from above the heat insulating material in the laminated form.

Further, it is preferable that the upper surface sheet 21 of the heat shield 2 is located below the upper surface 1T of the roof rafter 1 (claim 11). In this case, since the side surface of the roof rafter 1 has a function of maintaining the standing state of the heat shield 2, the upper sheet 21 of the heat shield 2 can be used without being attached to the side surface of the roof rafter 1, etc. Even when the top sheet 21 is attached by a simple method, it is sufficient to simply attach the top sheet 21 to the side of the rafter at the edge of the top sheet with an adhesive tape, a nail or the like. Moreover, when the roof panel is stretched on the roof, an air layer void So can be formed between the roof underlining material 7 fixed to the roof rafter 1 by nailing or the like and the surface of the heat shield upper sheet 21. The radiant heat reflection function of the upper sheet 21 of the heat shield 2 can be fully exerted.

The side edge 2 of the top sheet 21 of the heat shield 2
It is preferable to fasten 1E to the roof rafter 1 (claim 1
2). In this case, when firmly fixing the upper sheet edge 21E of the heat shield 2 to the rafter with nails or the like, fixing (bonding) the heat shield 2 to the surface of the heat insulator 3 can be omitted. Therefore, it is sufficient to separately prepare the rafter, the heat insulating material integrated panel, and the heat shield, and to fix the heat shield 2 together when the roof panel is used, so that the production and maintenance of the roof panel can be rationalized.

Further, it is preferable to fix the standing holding member 10 of the heat shield to the upper surface 1T of the roof rafter 1 (claim 13).
In this case, the roof subbing material (field board) 7 can be attached to the rafter through the upright holding material 10, and therefore, even when using a rafter with a low roof strength and a low height, the heat shield 2 can be attached. A suitable standing state can be maintained, and if the standing holding material 10 is made higher than the top sheet 21 of the heat shield 2, the air layer void So is also provided between the top sheet 21 of the heat shield 2 and the roof subbing material 7. It can be formed, and the radiant heat (heat ray) reflection function of the upper sheet 21 of the heat shield 2 can be maximized.

In the roof panel A, it is preferable that a roof underlaying material 7 is stretched and integrated on the upper surface 1T of the roof rafter 1 (claim 14). In addition, the meaning of "integrated tensioning" means that when the roof panel A of the present invention is stretched on a roof frame, it is not necessary to add a separate layer of underlayment material to the underlayment material. ,
As shown in Fig. 6, roof rafters 1 such as plywood underlining with nails, adhesives, etc.
It should be fixed to. In this case, due to the installation of the roof panel A on the roof frame, the eaves side of the rafter and the projecting portion 1 on the purlin side 1
The subbing material 7 is not stretched on E and 1B (FIG. 6),
In the portion where the roof panel subbing material 7 does not exist, a subbing material may be separately installed after the roof panel A is attached. Therefore,
In the roof panel A integrally stretched with the underlining material, since the underlining material 7 serves as a reinforcing material to connect and hold the rafters together, the horizontal frame member 4
Even if there is not, there is no need to worry about the insulating material 3 falling off.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION [Heat Shielding Material 2 (FIG. 5)] A paper sheet having an aluminum foil layered on its surface is prepared in advance, and the width W1 of the bottom sheet 23 is adjusted according to the size of the applicable roof panel A for each rafter. 1 width W1, the width W1 'of the top sheet 21 is the width W1 of the bottom sheet + protruding edges 21E (10 mm) on both sides, and the width of the intermediate sheet 22 is the size between the standing pieces 24 and 25 + the bent surfaces 22 on both sides. ′ (20 mm), and each standing piece 24, 25 is a paper sheet without aluminum foil, and the width is a predetermined height H of the heat shield 2.
1 (standard 30 mm) + upper and lower curved surfaces 24 ', 25' (20
mm), each paper sheet is cut, and as shown in FIG.
Folded curved surface 22 'of the intermediate sheet and folded curved surface 24' of the standing piece,
A sizing agent is applied to the contact surface of 25 'with another sheet, and each sheet is adhered in a predetermined dimensional relationship.

Therefore, the production of the heat shield 2 including the layering of the aluminum foil on the paper sheet, while supplying all the constituent members to the roller group device in a sheet state, makes a crease formation → folding → gluing → pressure bonding → It can be manufactured rationally in the flow process of constant-size cutting. Further, the width W1 and the height H1 of the heat shield 2 need to be changed in accordance with the shape of the roof panel A, but the change in size can be easily dealt with by adjusting the roller group device.

[Production of roof panel A] [Example 1, type in which rafter 1 is higher than heat shield 2 (FIGS. 1 and 3)] As roof rafter 1, wood having a cross-sectional dimension of 38 mm × 140 mm (for 2 × 4 construction method) 206 material), a cross-sectional dimension of 38 mm × 100 mm (cut material of 206 material) is used as the horizontal frame material 4, and the length L of the rafter 1 is determined according to the applicable roof dimension,
The rafters 1 are arranged in parallel with each other while keeping the width W1 for fitting the heat shield 2 therebetween, and the eaves side projections 1E and the purlin side projections 1B are formed between the rafters to form the horizontal frame member 4, Further, the rafters 1 and the horizontal frame members 4 are fixed to each other by nailing with their bottoms aligned to form a frame body in which a space V surrounded by the rafters 1 and the horizontal frame members 4 is formed.

Further, a foam synthetic resin agent injection hole O1 is formed on the eaves side of each horizontal frame member 4, and an air vent hole (exhaust hole) O2 is formed on the purlin side. Next, as shown in FIG. 3 (A), the frame is placed on a table via kraft paper, and the bottom sheet 23 of the heat shield 2 in a laminated state is placed on the horizontal frame 4.
The template 32 is arranged on the upper surface of the heat shield 2 with the protruding portion 2P protruding to one side in a bent state along the inner surface of the rafter, and the foam synthetic resin agent (hard urethane foam) is injected from the injection hole O1 of the lateral frame member 4. Agent)
Is injected and foamed to the same level as the height of the horizontal frame member 4 (100 mm), and the heat insulation member 3, the heat shield member 2, and the frame body (1 rafter + horizontal frame member 4) are formed by the foaming and solidifying adhesive force of the synthetic resin foamed. Unify. Then, the template 32 is removed, and as shown in FIG.
The heat shield 2 has a three-dimensional shape, and the protruding side edges 21E on both sides of the upper sheet 21 are nailed to a rafter, staple, etc. in a state where the air layer space S is formed between the sheets 21, 22 and 23 by the standing pieces 24 and 25. Fix with.

If the injected foaming agent may leak from the side of the heat shield 2, the template 32 may be clamped through a release paper. After foaming the heat insulating material 3, the horizontal frame member 4
By closing the injection hole O1 and the air vent hole O2, the appearance of the roof panel is improved and the function deterioration due to moisture absorption of the heat insulating material 3 is suppressed. In addition, the base end of the rafter 1 (end on the ridge side) is provided with a cutout 1C in accordance with the roof slope to be applied, so that the base end of each rafter 1 on the purlin can be brought into surface contact form by the cutout 1C.

[Example 2, Type in which rafter 1 and heat insulating material 3 are at the same height (FIG. 4)] As rafter 1, 206 materials for 2 × 4 construction method (38 mm × 140 mm) are cut into 38 mm × 100 mm in cross section. However, the horizontal frame member 4 also uses wood of the same cross-sectional dimension as the rafter,
As in Example 1, each rafter 1 and each horizontal frame member 4 are arranged and nailed, and as shown in FIG. 4 (A), the rafter 1 and the horizontal frame member 4 form a frame body of uniform height. Similarly, kraft paper as a release paper is placed on the molding table, the frame body is placed on the kraft paper, and the heat shield 2 is placed on the upper surface of the horizontal frame member 4 in a laminated state. The mold is clamped at 32, the synthetic resin agent is filled and foamed from the injection hole O1 of the horizontal frame member 4, and the heat insulating material 3, the frame body (rafter + horizontal frame material), and the heat shield material are made by the coagulation adhesive force of the filled synthetic resin. A panel integrally formed with the lower sheet 23 is used.

Next, as shown in FIG. 4 (B), the heat shield 2 is raised to form a three-dimensional shape, and a wood piece having a cross-sectional shape of 38 mm × 40 mm made by cutting the rafter is erected on the upper surface 1T of each rafter 1. If fixed as a holding material 10 by nailing, the heat insulating material 3 will be a rafter 1.
The roof panel A is fixed in the frame body at the same height (100 mm) as the horizontal frame member 4, the lower sheet 23 is adhered to the upper surface of the heat insulating material 3, and the three-dimensional shape is held by the standing holding member 10 on the rafter 1. Becomes

In this case, since the side edges of the upper sheet 21 and the intermediate sheet 22 of the heat shield 2 do not bend when the mold is clamped, the heat shield 2 which is erected is preferably the upright holding member 1.
Since it can be stably held between 0, and therefore, it can be used without fixing the side edge of the upper sheet 21 to the upright holding material. Therefore, the protruding side edge 21E of the upper sheet of the heat shield 2 is bent and the upright holding material is used. Alternatively, the protruding side edge 21E may be cut and removed in advance. Further, the upright holding member 10 does not need to be arranged over the entire length of the rafter 1, and can be arranged at an appropriate position in consideration of the attachment of the roof subbing member.

[Insulation construction of roof (Fig. 6)] The first roof panel A on one roof surface is aligned with the base end on the ridge side and the center of the shed, and the base end of the roof rafter 1 is aligned. Each roof rafter 1 is fixed to the purlin 6 by nailing the purlin 6 diagonally from both sides. Also, on the tip side of the roof panel A (eave side),
Each roof rafter 1 is fixed to the eaves girder 61 by driving nails diagonally from both sides of the roof rafter 1 to the eaves girder 61. Also,
Although not shown, when there is a roof-structured main house in the middle part of the roof panel A, the roof rafters 1 on both sides of the roof panel 1
Is fixed to the purlin by diagonal driving of nails, and further, the lower surface of the roof rafter and the metallic article, and the side of the purlin and the metallic article are nailed and fixed through a metal (flexed sheet metal) extending from the lower surface of the roof rafter to the purlin.

Then, the roof panel on the opposite roof surface is constructed in the same procedure, and the notch 1C of the roof rafter 1 is formed at the top of the ridge 6.
The roof rafters that are face-to-face with each other are firmly connected to each other using a reinforcing metal member (not shown). After the installation of the first roof panel A on both sides of the roof surface is completed, the second and subsequent roof panels A are similarly nailed and fixed in the order of the ridge 6, the eaves girder 61, and the purlin. The side contact part of
The roof panels are firmly connected to each other by nailing the appropriate positions of the two rafters 1 that have come into contact with each other.

After the installation and installation of the roof panel A is completed, the eaves girder 61
Between the roof rafter 1 and the roof rafter 1 of the upper panel, a member (wood) having substantially the same cross-sectional dimension as the roof rafter is used as the anti-rolling member 5 in order to prevent the buckling deformation of the roof rafter 1. The roof panel A is inserted so that it does not interfere with the air layer space S of the heat shield 2, and the anti-rolling material 5 and the eaves girder 61, and the anti-rolling material 5 and the roof rafter 1 are firmly connected by nailing. Also,
In the same way, apply anti-rolling material to the top of the ridge 6, and also reinforce the base end of the roof rafter 1. After the construction of the roof panel A is completed, it is confirmed that the heat insulating material 2 is in a standing state over the entire surface, and a roof subbing material (roof base plate) 7 is laid on the roof rafter 1 to form a roof. The structural part is completed, and the roof material 8 is stretched on the roof underlay material 7.

In the heat insulating construction of the roof, since the roof rafter 1, the heat insulating material 3, and the heat shield 2 integrated panel are used, a plurality of roof rafters can be installed at the same time, so that the heat insulating material can be used at the construction site. No construction is required, and the construction period can be dramatically reduced compared to the conventional construction method as in Conventional Example 1. Moreover, when the roof rafter is stretched, the distance between the ridge and the eaves girder and the distance between the eaves girder and the purlin are large, so it is necessary to secure a scaffold for working in high places with the conventional construction method, which is dangerous and troublesome. Although it was a labor-intensive work, in the roof panel construction of the present invention, the work can be carried out safely and easily simply by securing a work scaffold in the ridge portion. In addition, the roof panel A is also manufactured in a factory, so that a high-quality and highly reliable panel can be obtained, and a high-quality heat-insulated structure roof can be obtained by simple and easy installation of the roof panel.

In the roof heat insulation structure of the house obtained in this embodiment, the roof panel A blocks the radiant heat by the aluminum foil on the upper surface of each sheet of the heat shield 2, and the space between the sheets of the heat shield 2 is prevented. Since the air layer space S suppresses convective heat transfer due to external air conduction, and the heat insulating material 3 suppresses heat transfer, that is, the roof panel A is a three-element heat transfer element such as conduction, convection, and radiation heat transfer elements. Since it corresponds to all, for example,
The structure is simpler than that of the conventional example 2 in which a heat insulating sheet is placed on the heat insulating material and ventilation is performed by the heat insulating sheet, and the heat of conduction and convection heat are dealt with, and it is easier to manufacture, and In addition to being reasonably possible, the heat transfer suppression function will be remarkably excellent. That is, from the viewpoint of the heat insulating function, the heat insulating material 2 + heat insulating material 3 of the present invention exhibits a heat transfer suppressing effect which is superior to that of the heat insulating material made of the same heat insulating material. In addition, since the heat storage of the heat insulating material, which is an inevitable result in the conventional heat insulating structure using the heat insulating material, can be reduced, it becomes possible to adapt to the decrease in the outside temperature relatively quickly, which is advantageous for providing the energy saving house.

[Others] In each of Embodiments 1 and 2, an air layer gap is formed between the upper surface of the upper sheet 21 of the heat shield 2 in the upright state and the roof subbing material 7. However, even if the upper surface sheet 21 of the heat shield 2 and the upper surface 1T of the rafter 1 or the upper surface of the standing holding member 10 on the rafter have the same height,
That is, the heat shield upper surface sheet 21 and the roof subbing material 7 may be in contact with each other. In this case, as for the height (material thickness) of the heat insulating material 3, the heat insulating material layer of the maximum thickness can be formed under the condition of the required height of the rafters 1 and the heat insulating material 2, and the heat insulating material 2 can be kept standing. The side edges 21E of the top sheet need only be attached to the top surface of the rafter 1 or the upright holding material 10, and the top sheet 21 can be easily fixed. Then, the surface of the upper surface sheet 21 and the roof underlining material 7
Since the only contact with the lower surface is that there is some air on the contact surface, the heat reflection function of the upper sheet 21 is 100.
% Not lost. Moreover, since the intermediate sheet (next layer sheet) 22 and the lower surface sheet 23 have a perfect heat ray reflecting function, the radiant heat transfer suppressing function of the heat shield 2 as a whole can be sufficiently exerted.

When forming the panel frame body, each lateral frame member 4 is used.
It is also possible to slightly incline the heat insulating material 3 and fix it to the roof rafter 1 as a shape to prevent the heat insulating material 3 from falling off. In this case, there is no fear of falling off of the heat insulating material during construction or service of the roof panel, and in particular, This is suitable when the already-formed plate-shaped heat insulating material 3 is fitted and adhered in the frame body.

FIG. 6 shows another example of a roof panel, in which a plywood roof subbing material 7 is nailed and fixed to the roof rafter 1 so as to cover the upper surface of the heat shield 2 composed of the upper sheet 21 and the lower sheet 23. It is a thing. In the roof panel of FIG. 6, since the roof subbing material 7 is fixed between the rafters, there is no concern about displacement of the rafters 1 in the panel width direction, so that the molded heat insulating material is placed between the rafters. Even in the roof panel of the type that is fitted and adhered, there is no fear that the heat insulating material 3 will fall off during installation or during service, and the degree of freedom in selecting the heat insulating material increases. Of course, the integrated installation of the roof subbing material 7 as shown in FIG. 6 can be applied not only to the roof panels of Examples 1 and 2 but also to the heat shield 2 whose upper surface is at the same height as the rafter upper surface. Further, in the panel of FIG. 6, if the roof underlaying material 7 is only the upper surface of the heat shield material 2, the roof panel can be easily attached to the wall (eaves girder) and the purlin. After installing the roof panel, it is only necessary to separately apply the subbing material to the portion where the subbing material 7 does not exist.

[0044]

In the roof heat insulating structure of the present invention, the roof is formed by using the roof panel A in which the rafter 1, the heat shield 2 and the heat insulator 3 are integrated. The work such as roof rafter installation, ventilation layer formation, and heat insulation layer installation can be dramatically streamlined, and since it is a factory-produced homogeneous panel, simple and streamlined roof construction allows high A quality roof can be formed.

Further, the roof panel A has a function of reflecting radiant heat on the sheet surface of the heat shield 2, a function of suppressing heat convection due to outside air conduction in the air space S between the heat shield sheets, and a heat insulator. 3. The effect of suppressing heat conduction by 3, that is, 3 of heat transfer.
Since it corresponds to all the heat transfer elements of conduction, convection, and radiation, which are elements, it is possible to suitably suppress the transfer of heat from the roof surface to the inside of the building, and moreover, the heat shield 2 accumulates heat in the heat insulator 3. Can be reduced and the amount of heat stored in the heat insulating material 2 can be suppressed, so that it is possible to adapt to a decrease in outside air temperature in a relatively short time, which is advantageous for providing an energy-saving house such as reduction of cooling energy.

Further, the roof panel A of the present invention comprises the heat shield 2
Since a plurality of sheets 21, 22 and 23 are fixed to each other by a group of folding upright pieces 24 and 25, at the time of production, each sheet and each upright piece as each constituent material of the heat shield are together. The steps of horizontally arranging creases at required positions, gluing to adhesive parts, pressure bonding, and fixed-size cutting can be carried out in a streamlined work with a roller group device, and the production of the heat shield 2 is rational. The heat shield 2 that can be implemented and manufactured can be handled in a laminated form of each sheet, and thus can be stored and transported easily. In addition, when the roof panel is manufactured, the heat-insulating material 2 is covered with the heat-insulating material 3, and the lower surface sheet 23 of the heat-insulating material 2 is also protected.
It is only necessary to adhere only the heat insulating material 3 to the upper surface of the heat insulating material 3, and it is easy to apply the heat insulating material to the filling foam molding means and to press-bond the heat insulating material to the upper surface of the plate-shaped molded heat insulating material.
Due to its structure, it is extremely practical in terms of manufacturing, laying, and insulating the roof.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a roof panel of the present invention.

FIG. 2 is an exploded perspective view of the roof panel of the present invention.

[Fig. 3] Fig. 3 is a production explanatory view of Example 1 of the roof panel of the present invention, (A) is a front view of a heat insulating material filling mold set state, (B).
Is a cross-sectional view of the completed roof panel.

[Fig. 4] Fig. 4 is a production explanatory diagram of Example 2 of the roof panel of the present invention, (A) is a front view of a heat insulating material filling mold set state, (B).
Is a cross-sectional view of the completed roof panel.

5A and 5B are explanatory views of a heat shield applied to the roof panel of the present invention, FIG. 5A is a front view in the middle of standing, and FIG. 5B is a front view in a standing state.

FIG. 6 is a partially cutaway perspective view of a roof panel for fixing a roof subbing material according to the present invention.

FIG. 7 is a partially cutaway explanatory view of the roof structure of the present invention.

8A and 8B are explanatory views of Conventional Example 1, where FIG. 8A is a state in which a ventilation base material is attached, and FIG. 8B is a state in which a ventilation layer is formed.
FIG. 6C is a diagram showing a state in which a heat insulating material is attached to complete the process.

9 is a partially cutaway perspective view of Conventional Example 2. FIG.

[Simple explanation of symbols]

1: Roof rafter, 2: Heat shield, 3: Heat insulating material, 4: Horizontal frame, 5: Anti-rolling material, 6: Purlin, 7: Roof sub-lining material (roof board), 8: Roof material (roof) Finishing material), 10: Standing material,
21: Top sheet, 22: Intermediate sheet, 2
3: bottom sheet, 24, 25: standing piece, 22 ', 2
4 ', 25': Folded curved surface, 61: Eaves girder, A: Roof panel, r: Bent portion, S: Air layer space,
V: space

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2E001 DB02 DD01 FA17 GA13 GA22                       GA24 GA42 HB04 HC07 HD01                       LA01 ND21

Claims (14)

[Claims] 1. A plurality of upper and lower sheet materials (21, 22,) including at least an upper sheet (21) and a lower sheet (23) between at least two parallel roof rafters (1).
23), a heat insulating material (3) whose upper surface is covered and protected by a heat shielding material (2) which has a radiant heat reflecting effect on the sheet surface and an air circulation function by an air layer space (S) between the sheets is integrally fixed. The roof panel (A) is stretched on the roof frame via the roof rafters (1), and the roof sub-silling material (7) and / or the roof material (8) is stretched on the roof panel (A). Thus, the heat insulating material (2) conducts the outside air, and at the same time, the heating by the heat ray from the roof surface is prevented to reduce the heat storage in the heat insulating material (3), thereby the roof heat insulating structure of the house. 2. The heat shield (2) comprises a plurality of sheets (21, 22, 23), at least a top sheet (21) and a next layer sheet (22, 23) of which a heat reflection layer is provided on the top surface. The roof thermal insulation structure for a house according to claim 1, further comprising an air layer space (S) which is longitudinally penetrated by a group of upright pieces (24, 25) which can fall freely between the respective sheets. 3. A roof panel (A) is fixed by nailing a roof rafter (1) of a roof panel to a roof frame, and a roof subbing material (7) is kept on the upper surface of the heat shield (2) with a void layer (So). )
The roof insulation structure for a house according to claim 1 or 2, which is fixed to the rafter (1). 4. A plurality of upper and lower sheet materials (21, 22,) including at least an upper sheet (21) and a lower sheet (23) between at least two parallel roof rafters (1).
23), which is a rafter integrated with a heat insulating material (3) whose upper surface is covered with a heat shielding material (2) having a radiant heat reflecting effect on the surface of the sheet and an air circulation function by an air layer space (S) between the sheets. Roof panel. 5. A heat shield (2) provided with a heat reflection layer, wherein a plurality of sheets (21, 22, 23) are foldable and a rising piece (2) is provided.
4,25) groups, each sheet (21,22,22)
23. The rafter integrated roof panel according to claim 4, wherein an air space (S) is formed between 23) so as to penetrate therethrough in the longitudinal direction. 6. The plurality of sheets (21, 22, 23) and the standing pieces (24, 25) are made of paper, and the top sheet (21) and the next layer sheets (22, 23) are heat-reflecting aluminum foils on the surfaces. The rafter integrated roof panel of claim 4 or 5 comprising layers. 7. The heat shield (2) is a top sheet (2) of paper material.
1), the intermediate sheet (22) and the lower sheet (23) each have a heat-reflecting aluminum foil layer on the surface, and are bent curved surfaces at both ends of a group of upright pieces (24, 25) that can be bent at a bending portion (r). (24
', 25') is the top sheet (21) and the bottom sheet (2
3), and the folding curved surfaces (22 ') at both ends of the intermediate sheet (22) which is freely bendable at the folding portion (r) are fixed to the group of upright pieces (24, 25). , 22, 2
The rafter integrated roof panel according to claim 4, 5 or 6, wherein an air layer space (S) penetrating in the longitudinal direction is opened between 3). 8. The rafter integrated roof panel according to any one of claims 4 to 7, wherein horizontal frame members (4) defining both ends of the heat insulating material (3) are fixed between the roof rafters (1). 9. A roof rafter (1) is formed by injecting and foaming a heat insulating material (3) from the horizontal frame (4) into a space (V) surrounded by the roof rafter (1) and the horizontal frame (4). ), The horizontal frame member (4) and the lower surface sheet (23) are integrated by the coagulation adhesive force of the foamed heat insulating material (3), and the rafter integrated roof panel according to any one of claims 4 to 8. 10. The rafter integration according to claim 8 or 9, wherein the horizontal frame member (4) has the same height as the heat insulating material (2), and the upper and lower surfaces thereof are flush with the upper and lower surfaces of the heat insulating material (3). Roof panel. 11. The rafter integrated roof according to claim 4, wherein the upper sheet (21) of the heat shield (2) is located below the upper surface (1T) of the roof rafter (1). panel. 12. The rafter integrated roof panel according to any one of claims 4 to 11, wherein a side edge (21E) of the upper sheet (21) of the heat shield (2) is fixed to the roof rafter (1). 13. The rafter integrated roof panel according to any one of claims 4 to 12, wherein a standing holding member (10) of a heat shield is fixed to the upper surface (1T) of the roof rafter (1). 14. The rafter integrated roof panel according to any one of claims 4 to 12, wherein a roof underlining material (70) is stretched and integrated on the upper surface (1T) of the roof rafter (1).