JPH0452331Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to thermal insulation of buildings, and particularly to a thermal insulating composite panel for use on the roof of a wooden building.

[Conventional technology]

A typical insulation method for wooden buildings conventionally used is to fill the space on the indoor side of the roof, that is, between the rafters, with glass wool cut on site. Glass wool itself is an inexpensive insulating material, so it is often used for insulating simple wooden buildings.

In addition to the above-mentioned glass wool, an insulation method is also used in which a pre-manufactured foam insulation material such as urethane is cut on site and installed between the rafters.

[The problem that the idea aims to solve]

Glass wool itself has excellent insulation properties and is inexpensive, but it has the following drawbacks.

Filling the gaps between the rafters on-site is time-consuming and can result in uneven construction. In other words, since it is a push-in construction, there are gaps around the four circumferences that contact the rafters, which reduces airtightness. In addition, due to vibration, dead weight, etc., the airtightness deteriorates over time, making it even less airtight than when it was first constructed. In this way, a decrease in airtightness is unavoidable, so even though the material is made of a material with good insulation properties, during heating, high-temperature air inside the room escapes to the outside through the gaps, and the low-temperature outside air becomes a draft and flows indoors. They will invade and the heating effect will be impaired.

Since the indoor side of the glass wool is not completely airtight, high-temperature, high-humidity indoor air enters the filled portion of the glass wool and tends to cause dew condensation on the outdoor side of the glass wool. This causes deformation as well as a decrease in the heat insulating properties of the glass wool.

Additionally, the tip of the composition glass fiber may sting the worker's skin during construction, resulting in a poor working environment.

Foam insulation is fragile and difficult to install on rafters.

The purpose of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to provide a heat insulating composite panel for roofs that has excellent heat insulation and airtightness, prevents dew condensation, and is easy to construct.

[Means to solve the problem]

The structure of the present invention that achieves the above object is a heat insulating composite panel used for roofs, which is a rectangular box with one main surface open so as to constitute an indoor side and four peripheral sides of the heat insulating composite panel. paper arranged in a shape,
an outdoor member disposed to substantially cover the open portion;
The box includes a plurality of horizontal members arranged on the inner bottom surface of the box made of the paper, and a foam insulation material filled and foamed into a rectangular sealed space formed by the paper and the outdoor side member. This is an insulated composite panel.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Figures 1A and 1B are exploded views and assembly views showing the manufacturing method of the heat insulating composite panel of the present invention, and Figures 2 to 4 are perspective views, vertical sectional views, and cross sectional views, respectively, of the heat insulating composite panel as a product. It is a diagram.

As shown in Fig. 1A and Fig. 1B, a rectangular formwork 1 which is usually made of metal and has an open upper surface is filled with paper such as kraft paper along the inner bottom surface and inner side surfaces of the four circumferences of the formwork 1. Lay out paper 2. This paper constitutes the indoor side and four circumferential sides of the heat insulating composite panel when it becomes a product. The cross members 3 made of wood, for example, on the inner bottom surface of the paper 2 are arranged at predetermined intervals. Next, the outdoor member 4 is disposed so as to cover the upper open part of the rectangular paper box formed in the formwork 1, that is, the open part of the formwork 1. This outdoor member 4 is made of plywood, paper, or felt. Formwork 1 containing paper 2, cross members 3, and outdoor side members 4 as described above
The injection holes 1A are formed in each formwork 1 by stacking a plurality of them and pressing and holding them in a sandwich shape using a press (not shown).
A foamed heat insulating material 6 such as styrene or urethane is filled and foamed into a rectangular sealed space 5 formed by the paper 2 and the outdoor member 4 via the paper 2 and the outdoor member 4. Foam insulation material 6
Urethane is most preferable in terms of its properties. When the foam insulation material 6 hardens, the paper 2, the cross member 3, and the outdoor member 4 are integrated due to its high adhesive strength, forming an integral block-shaped insulation composite having the same shape and dimensions as the enclosed space of the formwork 1. The panel is completed. The above-mentioned horizontal member 3 serves as a base material for the interior of the heat-insulating composite material that has become a product, and since it is integrated with the foam heat-insulating material 6, a special fixing means is required for the solidified foam heat-insulating material 6. It's unnecessary.

Hereinafter, an example of the use of the heat insulating composite panel of the present invention will be explained.

5 and 6 show the case where plywood is used for the outdoor side member 4, and the heat insulating composite panel is fixed to the rafters 7 using nails or adhesive from the plywood outdoor side member 4 or the cross members 3. In addition, 8 is felt, and 8 is a roof finishing material.

Figure 7 shows a case where a plurality of foam insulation materials 6 are fixed to a single outdoor member 4 at intervals.If the intervals are made equal to the width of the rafters 7, construction can be performed using a small number of large-sized insulation composite panels, reducing the number of man-hours. can be reduced.

Figure 8 shows a case where felt or paper is used for the outdoor side member 4, and a rafter 7 is attached with a heat insulating composite panel.
A field board 11 with a furring 10 attached thereto
A ventilation layer 12 is provided between the outdoor member 4 and the outdoor member 4. Forming in this way has the advantage that the ventilation layer prevents the temperature in the attic from rising. In this usage example, the upper surface of the outdoor member 4 is made medium-low, so that even if water should leak from the gaps in the roof finishing material 9, it can be drained along the longitudinal slope.

[Effect of idea]

The insulating composite panel of the present invention is constructed as described above, and is made by filling and foaming a foam insulation material such as urethane with high heat insulation, airtightness, and water resistance in a formwork, and includes an outdoor member covering the upper surface and an interior member. Because the horizontal material that serves as the base material and the paper that makes up the interior side and surrounding sides are completely integrated, there are disadvantages to glass wool insulation that can create gaps between the rafters and reduce insulation properties. is removed, and the high water resistance of the foam insulation material prevents condensation from forming inside the insulation composite panel. In addition, by using panels, insulation work and woodwork can be done at the same time, which shortens the construction period and improves the working environment because the site is not contaminated. Furthermore, since the outer surface of the panel is covered with the outdoor side member and paper, it has many effects such as making the product more beautiful.

[Brief explanation of the drawing]

Figures 1A and 1B are an exploded view and an assembled view of the heat insulating composite panel of the present invention, and Figures 2 to 4 are perspective views, longitudinal sectional views, and cross sectional views, respectively, of the heat insulating composite panel as a product. , Fig. 5 to Fig. 8 show examples of the use of the heat insulating composite panel of the present invention, of which Figs.
The figures are a cross-sectional view and a vertical cross-sectional view when plywood is used for the outdoor side member, Fig. 7 is a perspective view of a heat insulating composite panel in which a plurality of foam insulation materials are fixed to a single plywood outdoor side member, and Fig. 8 The figure is a cross-sectional view of a heat-insulating composite panel in which a ventilation layer is provided above the felt (or paper) outdoor member. 2...Paper, 3...Horizontal material, 4...Outdoor side member, 5
...Closed space, 6...Foam insulation.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A heat insulating composite panel for use on a roof, which is arranged in a rectangular box shape with one main surface open so as to form an indoor side and four circumferential sides of the heat insulating composite panel. the paper 2 provided thereon, the outdoor member 4 disposed substantially covering the open portion, a plurality of horizontal members 3 arranged on the inner bottom surface of the box made of the paper, and the paper and the box made of the paper. A heat insulating composite panel comprising a foamed heat insulating material 6 filled in a rectangular sealed space 5 formed by an outer member and a foamed heat insulating material 6. 2. The heat insulating composite panel according to claim 1, wherein the outdoor member 4 is made of plywood. 3. The heat insulating composite panel according to claim 1, wherein the outdoor member 4 is made of paper. 4. Claim 1, wherein the outdoor member 4 is made of felt.
Insulated composite panels as described in .