JPS6012811Y2 - Insulation structure for buildings using aluminum roofing - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of buildings such as buildings and structures, and more specifically relates to an insulating structure for buildings that utilizes the thermal properties of aluminum foil.

It has been known for a long time that aluminum has low heat absorption and heat emissivity, and in particular, it is known that aluminum foil with high purity and a glossy surface is a material with low heat absorption and low heat emissivity.

□ Taking advantage of these thermal properties, the development of insulation for buildings (walls, ceilings, floor materials, etc.) using aluminum foil has been progressing for some time.

A) The insulation structure using Remi foil, which has been put into practical use in the past, will be explained using an example of a wall.

The structure shown in Figure 1 is made by stretching a relatively thin aluminum foil 1A" (thickness 0-004~0.j) 07m) with wavy creases across the pillars 2 and 2 and using adhesive. 1. A thin aluminum foil with a channel cross section that has been bent and formed in advance to match the inner distance between the structural columns 2 and 2 shown in Figure 2. 1B is fixed.

The former has drawbacks such as creating sag in the nano-mounted foil, which causes it to come into contact with the interior or exterior panels, and making it impossible to use on floors, for example, without using exterior panels, and the latter. Because the distance between the insides of pillars in buildings was not necessarily constant, it was necessary to use Narumi foil (with various cross-sectional dimensions), which was not only time-consuming to install, but also complicated to manufacture.

' □Although the above example uses a single piece of aluminum foil, the inventor of the present invention attempted an experiment in which a plurality of aluminum foils were used to form a spatial region between the aluminum foils.

For the experiment, as shown in Figure 3, the upper and lower ends were insulated with urethane foam, thickness T = 9-1, height H = 1820 mm, width 60 ow.
Form a wall panel by pasting plywood with a thickness of 5.5 on both sides of the wooden frame, and make the internal structure of the panel as shown in Figures 4A to 4F (P indicates plywood and F indicates foil). (The right side of the panel in the figure was changed to a high temperature side, the left side was a low temperature side, and the wind speed on the panel surface was set to 0.5 rrL/s on both sides. The heat transfer coefficient in each structure was measured and shown in the table.

Heat transmission coefficient when only plywood is attached (Figure 4A): 2.2
kCa1/m2. When aluminum foil is attached to the inside of both plywood boards (Fig. 4D), the heat transfer coefficient is 1.1kc at h0℃.
al 7m2. h, °C.

Furthermore, when a sheet of aluminum foil is placed in the center of the air layer (Figure 4E), the value is 0.8kcal 7m2. When two sheets of aluminum foil were placed in the air space (Fig. 4F), the temperature decreased to 0.6 kcal/m'', h,'C.

On the other hand, when one and two sheets of aluminum foil are placed in the air space without pasting aluminum foil on the inside of the plywood (Figures 4B and 4C)
The heat transmission coefficients of (Figure) are Q, 9kcal, 7m2. h,'
(! and 9.7 kcal/m2.h, °C were obtained.

From the above, pasting aluminum foil on the inside of the plywood is not very effective, and forming an air region with aluminum foil within the air layer (
(corresponding to FIG. 4C) is the most economical way to reduce the heat transfer coefficient.

A conventional technique in which a space region is formed between aluminum foils based on the above principle is shown in FIGS. 5A and 5B.

In the figure, two relatively thin aluminum foil ICs and IDs (in order of thickness 0.004 to 0.007) are glued together at part A.
B2. B. Make a crease on the 84th part (5th part).
(B figure), raise it and fix it to the pillars 2 and 2' at the C part with stapler 1 nails, adhesive, etc.

In this way, a space can be formed between the aluminum foil IC and ID, and cutting at the construction site becomes unnecessary.

However, because the inner spacing of the columns was not constant, it was difficult to match them on site, and manufacturing was also time-consuming.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a structure of a heat insulating member for a building using aluminum foil in which a space region can be easily formed between a plurality of aluminum foils on site.

The present invention will be explained based on the drawings.
a is a relatively thick (0.02 to 0.2 rtm) long aluminum foil, preferably a hard aluminum foil that has not been annealed while being cold rolled, and its cross section perpendicular to the longitudinal direction is approximately flat. The flange part 4 has a dish-shaped channel shape consisting of a flexible web part 3 and a flange part 4 extending from both edges of the web part. It is formed into a step shape by the connecting portion 6 to which it is connected.

In FIG. 7, which shows an example in which the aluminum foil 1a described above and the aluminum foil 1b, which has only a different channel depth, are used for walls, 2 and 2' are wall structural materials such as columns and studs, and the adjacent columns 2
Aluminum foils 1a and 1b formed as described above are stacked on top of each other in the spaces between the columns 2 and 2', and the respective edges 5, 5 are placed on the inner surfaces of the columns 2 and 2', respectively. To be fixed.

(In this case, it is more preferable to insert the heat insulating material X between the edges 5, 5 to prevent heat conduction between the edges.

) In this embodiment, the interior panel 7 is attached to both aluminum foil edges 5, 5.
Attach to the pillar via adhesive, nails, stapler, etc.

Note that 8 is an exterior plate attached to the outer surfaces of the pillars 2 and 2'.

la' and lb' are aluminum foils attached to a wall that is in a protruding corner relationship with the above wall, and one edge 5' of the aluminum foil is attached to the wall.

5' is fixed to the pillar 2 via the interior plate 7 mentioned above.

The wider the distance between the insides of the columns, the smaller the angle of inclination of the connecting part of the stretched aluminum foil, and the narrower the distance, the larger the angle of inclination. A certain response becomes possible.

Moreover, by overlapping aluminum foils with different channel depths, a spatial region effective for heat insulation can be easily constructed.

Although two sheets of aluminum foil were used in the above description, it is possible to use three or more sheets of aluminum foil in a stacked manner.

Although aluminum foil has the above-mentioned heat insulating properties, it also has high thermal conductivity, so it is necessary to prevent the web portion 3 from coming into contact with the exterior plate 8.

For this reason, it is desirable to form the cross-sectional shape of the aluminum foil so as to provide an appropriate space between the outermost aluminum foil and the exterior plate 8.

Figure 8 shows an example of use on the ceiling or floor.

Usually there is no exterior plate.

, 9 indicates the structural materials for floors and ceilings such as ``Koji'' and ``Ketaigo'' Ueno En.

- When the brightness of the aluminum foil surface decreases due to corrosion etc., the heat absorption rate and heat emissivity of the aluminum foil increase.

To prevent this, it is convenient to cover the surface with synthetic resin such as polyethylene. □Figure 9 shows stud 2.
' Two sheets of aluminum foil 21a are placed between them.

21b is provided, and the connection part 26b of the lower aluminum foil 21b in the figure is provided.
It has wavy parts.

This wavy portion is provided to improve the compatibility in width direction dimensions.

The aluminum foil used in this invention can be easily manufactured using forming rolls, forming presses, etc., and because the foil material is relatively thick, it will not come into contact with the exterior plate due to sagging, etc., and deteriorate its thermal properties. .

In addition, since the aluminum foil produced in the factory can be stacked on top of each other in this way, it is convenient for transportation and inventory.

It responds well to changes in installation spacing on site and is easy to install.

Furthermore, by stacking aluminum foils of different depths, it has many advantages such as easily forming a heat insulating space between the aluminum foils and improving the heat insulating effect.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views showing a conventional insulation structure for buildings using aluminum foil. ．． 1. Figure 3 is a cross-sectional view of a wall panel using aluminum foil, and Figures 4A to 4F are cross-sectional views showing changes in the internal structure of the wall panel. No. 6.
^Chief U Figure 5B is a sectional view showing a conventional heat insulating structure with a space between aluminum foils, Figure 6 is a perspective view of the aluminum foil used in the present invention, and Figure 7 is an embodiment of the present invention. 8 is a sectional view showing another embodiment of the present invention, and FIG. 9 is a sectional view showing another embodiment of aluminum foil used in the present invention. raw lbt 11a, 1 lb, 21aw
21b= 31 a, 31 b... Aluminum foil, 2, 2'... Pillar or kamo, 3t 13a
t 33at 43at 43b... Web part, 4... Flange part, 5... Edge part,
6.26b, 36b...Connection part.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A thermal insulation structure for a building in which a long aluminum foil is stretched between the structural members of the walls, floor, and ceiling of the building, and the above-mentioned long aluminum foil la
w Lb,' 21a121b is the adjacent structural member 2.
In the space between 2' and 9, extending in the longitudinal direction thereof, □ Also, a cross-sectional shape perpendicular to the longitudinal direction of the long aluminum foil,
It is formed into a dish-shaped chisel shape consisting of a flat web part 3 and a flange part 4', and the flange part has an edge having a surface parallel to the web part, 5'I, and the edge and the web. A step-like structure is formed by connecting parts 6 and 26b that connect the parts. A plurality of aluminum foils, each having a different channel depth, are stacked and fixed on adjacent structural members at both ends to form a spatial region between the plurality of aluminum foils. : Building insulation structure using foil.゛・□,'2 A heat insulating structure for a building using aluminum foil according to claim 1, wherein the connecting portion 26b of at least one of the aluminum foils has a wavy cross section.゛ 1 ゛ , ′