JP2573737Y2 - Roof structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a roof structure capable of maintaining a wooden house or the like with high airtightness and high heat insulation.

[0002]

[Technical background of the invention] In the case of wooden buildings, in order to enhance the heat insulation and airtightness inside the building, not only the wall structure but also the roof structure, a heat insulating material made of foam resin or the like is used. More.

[0003] On the other hand, from the viewpoint of simplifying the construction work of a wooden building, a roof panel integrating a rafter, a heat insulating material, a field board, a waterproof layer and the like has been developed and put into practical use. Such a roof panel generally arranges two rafters in parallel, further arranges a center rafter between these two rafters, and places a middle rafter between the end rafters and the center rafter.
A heat insulating material such as foamed polyurethane is loaded, and a base plate is mounted on a rafter.

In the case where such a roof panel is mounted as a roof material, a plurality of roof panels are prepared, and the roof panel is sequentially mounted on an eave girder or the like while a rafter of one panel and a rafter of an adjacent panel are abutted. To go.

However, according to such a roof structure, although the installation is easy, there are the following problems. That is, rafters are generally wood products,
It is difficult to bring the rafters into close contact with each other.
In addition, when a plurality of panels are arranged side by side, the rafters and rafters at the butting portion are partially separated from each other. Therefore, the airtightness at the butt portion may not be sufficient from the beginning, and there may be a problem that air enters from outside the room via this portion.

[0006]

[Purpose of the invention] In view of the above-mentioned circumstances, the present invention is airtight even when arranging roof panels while abutting each other.
It is an object of the present invention to provide a roof structure that maintains good heat insulation.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a roof structure according to the present invention includes at least two rafters, a plate-like heat insulating material provided between the rafters, and made of synthetic resin.
In a roof structure in which a plurality of roof panels having a base plate fixed to rafters at both ends are provided so as to face the heat insulating material, the rafters of the roof panels are rafters on the building side. That the roof panel is interposed between the rafters on the building side and that the rafters on the panel side are cut out so as to match the corners of the rafters on the building side. Features.

In the roof structure according to the present invention, the corners of the rafters on the building side and the cutouts of the rafters on the panel side are aligned with each other. it can.

Therefore, the airtightness and heat insulation of the roof panel can be maintained in good condition from the beginning of the installation, and the interior can be maintained highly airtight and highly heat-insulated.

[0010]

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a roof structure according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a part of a wooden house to which a roof structure according to the present invention is applied, and FIG. 2 is an enlarged view of an assembled state of a roof panel employed in the roof structure of FIG. It is shown.

In the roof structure according to the present invention, a plurality of rectangular roof panels 10 are prepared, and these are used as roof materials. As shown in FIG. 1, the standard frame structure of a two-story wooden building includes a vertical column, a tubular column 2, a vertical load, etc., and a gap 3 between the upper and lower floors. Girder 4, beam 5, hut beam 6 and the like connect the columns, and receive horizontal force.

On the other hand, in a wooden building having such a frame, a plurality of long rafters 8 are hanged over eaves girder 4, a main house 7, and unillustrated waste trees arranged on the top. The roof panels 10 are sequentially assembled between the rafters 8 on the side.

As shown in FIGS. 2 and 3, the roof panel 10 includes two rafters 11, 11 arranged at a predetermined distance from each other, and a rafter arranged substantially at the center between the rafters 11, 11. 17, rafters 11 at both ends and rafter 17 at the center
Insulation materials 13 and 13 loaded between them, rafters 11 at both ends,
11 and a base plate 14 arranged to face each other.

The roof panel 10 thus formed has ventilation layers 12, 12 between a heat insulating material 13 and a base plate 14.
Are formed. Therefore, the ventilation layer 12 allows cold air and the like to pass in summer and the like, and allows warm air and the like to pass in winter.

The cross-sections of the rafters 11 and 17 are T-shaped as shown, so that
Two symmetrical cutouts are formed. On the other hand, the heat insulating material 13 is a heat insulating material made of a synthetic resin such as expanded polystyrene or expanded polyurethane, and its expansion ratio is arbitrary, for example, 20 to 60 times. However, a fibrous heat insulating material such as glass wool may be used.

In the present invention, such a roof panel 1
Since the panel is ripped, the panel-side rafters 11 and 17 can be made to function as a part of the structure by hitting the panel with a nail or the like on the rafter 8 on the building side.

Further, there is an advantage that the construction period can be shortened by using the panel, and the cost can be reduced by the integrated production of the roof panel. The roof panel 10 thus formed can be laid as shown in FIGS.

That is, as shown in FIG. 1, an eaves girder 4, a main building 7, and two rafters 8, 8 on the building side, which are laid over a not-shown bark at the top, etc. And lay it out. Then, the notch of the rafter 11 on the panel side matches the corner of the rafter 8 on the building side, and a labyrinth part is formed here. Thus, one panel 10 is first fixed to a predetermined rafter 8 on the building side.

As a result, the space between the rafter 8 on the building side and the rafter 11 on the panel side becomes airtight. Thereafter, when the panels 10 are sequentially matched between the rafters 8 on the building side from above, the rafters 11 of the panels also match, thereby completing the roof.

When the panels are sequentially adjacent to each other and matched with the rafters 8 on the building side, there is a possibility that a slight misalignment may occur between the rafters 8 on the building side and the rafters 11 on the panel side. This deviation does not come off from the rafter 8 on the building side because the rafter 11 on the panel side has a T-shaped cross section.

Further, an airtight member can be interposed at a portion where the rafter 11 on the panel side meets the rafter 8 on the building side. By interposing the airtight member in this manner, even if a gap is formed when the rafter 11 on the panel side and the rafter 8 on the building side abut each other, the rafter 1 is also used later.
Even if gaps are formed in this portion due to the thinning of 1, 11 or the like, the airtightness is not lost in these gaps due to the interposition of the airtight member.

When the airtight member is attached, it is preferable in terms of work to attach the airtight member to one surface of the roof panel 10 in advance. Thus, according to the present invention, even when a long rafter is arranged on the building side, no gap is formed between the rafter on the building side and the rafter on the panel side.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible based on the technical idea of the present invention. For example, in each of the above embodiments, the present invention has been described with the roof panel 10 in which the space between the heat insulating material 13 and the rafter 11 is fixed with an adhesive, but a roof panel having another configuration may be used instead. Can be used.

For example, a panel in which waterproof paper or the like is laid on the lower surface of the panel 10 shown in FIG. 3 may be used, or veneer or the like may be laid instead of the waterproof paper.

In the above embodiment, the present invention has been described with respect to a roof panel in which a central rafter is further disposed between rafters at both ends. Alternatively, a roof panel in which a rafter is not disposed in the center may be used. The invention can be applied.

[0027]

As described above, in the roof structure according to the present invention, the corners of the rafter on the building side and the cutouts on the rafter on the panel side match each other, so that the labyrinth effect allows air to flow in. Can be prevented.

Therefore, the airtightness and heat insulation of the roof panel can be maintained in a good condition from the beginning of the installation, and the interior can be maintained highly airtight and highly heat-insulated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wooden house to which a roof structure according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view partially showing a mounted state of a roof panel employed in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a butt portion of a roof panel employed in one embodiment of the present invention.

[Explanation of symbols]

 4 eave girder 7 ... purlin 10 ... roof panel 11 ... rafter 13 ... heat insulating material 14 ... field board 20 ... airtight member

Claims (1)

(57) [Scope of request for utility model registration] 1. At least two rafters, a plate-like heat insulating material provided between the rafters and made of synthetic resin,
In a roof structure in which a plurality of roof panels having a base plate fixed to rafters at both ends are provided so as to face the heat insulating material, the rafters of the roof panel are rafters on a building side. The roof panel is interposed between the rafters on the building side,
A roof structure characterized in that the rafter on the panel side is cut out so as to match the corner of the rafter on the building side.