JPH07292813A - Partition wall insulating material and construction method therefor - Google Patents

Abstract

PURPOSE:To make it possible to apply this construction method to the upper and lower parts of a partition wall and eliminate the need to cut out an insulat ing material and fill in without any opening to comply with an application part. CONSTITUTION:The outer periphery of an inorganic fiber insulating material 12, which is board-like on the whole and different in vertical and horizontal lengths, is covered preferably with a moisture-resistant covering material 113. With a central part of an insulating material 13 of the covering material 13 as a boarder, a half part on one side is specified to be a moisture-resistant area 13a while the half part on the other side is specified to be a moisture- resistant area 13b with a large number of holes bored, thereby providing a partition wall insulating material 11. When the insulating material 11 is laid out on the upper part of the partition wall, it is arranged that the moisture- preventative area 13a be placed inside. When the insulating material 11 is laid out on the lower part of the partition wall, it is arranged that the moisture- preventative area 13b be placed inside so that they may be folded double vertically or horizontally in conformity with the application area and inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating material for a partition wall, which is used exclusively for preventing ventilation of the partition wall, and a construction method thereof.

[0002]

2. Description of the Related Art Wooden housing specifications for housing finance companies state that ventilation measures should be taken to prevent gaps between the upper and lower portions of partition walls. In this case, the ventilation stopper at the top of the partition wall should be filled with a bare piece of heat insulation material for the wall so that moisture inside the wall can escape.
For the ventilation stop at the bottom of the partition wall, the one with the moisture-proof surface covering material is used so that the invasion of moisture from the floor can be prevented.

However, a heat insulating material exclusively used as a heat insulating material for partition walls is not commercially available. Therefore, conventionally, the heat insulating material for the partition wall is often not constructed, and when constructing the partition wall, the existing heat insulating material is cut out and used for the upper part and the lower part of the partition wall. In addition, even when the length of the application site is different, the existing heat insulating material is cut out and used according to the length.

[0004]

However, the work of cutting out the inorganic fiber type heat insulating material is not only complicated but also complicated. That is, since the inorganic fiber heat insulating material is made of glass wool or the like, the operator feels uncomfortable when handling it, cutting scraps become dust and deteriorate the work environment, and further, the required size is reduced. There is a problem that a large amount of unusable semi-finished products are generated after cutting, which increases the amount of dust and the number of cutting waste processing operations.

The present invention has been made in order to solve these problems, and the purpose thereof is to perform a work of cutting out when it is used on the upper or lower part of a partition wall or when the length of the application site is different. Therefore, it does not take time and effort to cut out, does not feel the discomfort that the builder feels when handling, cutting waste does not deteriorate the work environment as dust, and the required size An object of the present invention is to provide a heat insulating material for partition walls and a construction method thereof, in which a large amount of unusable semi-finished products are not generated after cutting and the amount of dust is not increased, and the work of cutting waste is reduced.

[0006]

In order to achieve the above object, a partition wall heat insulating material of the present invention is a plate-shaped inorganic fiber heat insulating material and a surface covering the outer periphery of the inorganic fiber heat insulating material. The surface covering material is provided with a covering material, and the half of the surface covering material, which is located on one surface side, is moisture-proof and is located on the other surface side, with an intermediate portion in the thickness direction of the inorganic fiber heat insulating material as a boundary. One half is characterized by being breathable.

Further, the method for applying a heat insulating material for partition walls of the present invention comprises an inorganic fiber type heat insulating material having a plate shape as a whole and a surface covering material which covers an outer periphery of the inorganic fiber type heat insulating material. The material is a partition wall whose half located on one surface side is moisture-proof and half of which is located on the other surface side is moisture-permeable, with the middle part in the thickness direction of the inorganic fiber heat insulating material as a boundary. When using the heat insulating material for the partition wall and arranging it on the upper part of the partition wall, bend it so that the moisture-proof part of the front cover material is on the inside, and when arranging it on the lower part of the partition wall, It is characterized in that it is bent and inserted so that the moisture-permeable portion is on the inside.

In carrying out the present invention, it is preferable that the moisture-permeable portion of the surface covering material is formed of a moisture-proof sheet having a large number of holes formed therein.

Further, the moisture proof resistance of the moisture-proof part of the surface covering material is 30 m ² · h · mmHg / g or more, and the moisture permeable resistance of the moisture permeable part is 1.5 m ² · h · mmHg / g or less. Is preferred.

Further, it is preferable that the heat insulating material for partition has different lengths in the vertical and horizontal directions. Further, the length of the long side is 415 to 460 mm, and the length of the short side is 365 to 410 mm. It is preferable that the thickness is 50 to 100 mm and the density is 6 to 24 kg / m ³ .

As described above, as a heat insulating material for partition walls,
If the length and width are different, depending on the length of the application location, the long side can be folded in half or the short side can be folded in half. .

[0012]

Since the heat insulating material for partition walls of the present invention has a dedicated size and structure as a heat insulating material for partition walls, it does not require cutting work and therefore does not require time and labor required for cutting. However, there are various problems in cutting out the conventional inorganic fiber type heat insulating material, that is, the operator feels unpleasant feeling when handling, the cutting waste becomes dust and deteriorates the work environment, and further There are no problems such as a large amount of unusable semi-finished products after cutting the size, increasing the amount of dust, and increasing the work of cutting waste.

Further, the partition wall heat insulating material of the present invention is provided on one surface side with the middle portion in the thickness direction of the inorganic fiber heat insulating material of the surface covering material covering the outer periphery of the inorganic fiber heat insulating material as a boundary. The half located is moisture proof, and the half located on the other surface side is moisture permeable, so when placing it on the upper part of the partition wall, by bending and inserting so that the moisture proof part is on the inside, The moisture in the wall can be released. Further, when it is arranged at the lower part of the partition wall, it is possible to prevent moisture from invading from the floor by bending and inserting so that the moisture permeable part is on the inside. Therefore, the same heat insulating material can be applied to the upper and lower portions of the partition wall.

Further, in a preferred embodiment of the heat insulating material for partition walls of the present invention, since the longitudinal and lateral lengths are formed so as to be different from each other, the long side direction may be folded in two or inserted.
By inserting the short side direction in half and inserting it, it is possible to correspond to the length of the application site, for example, the distance between columns and studs, or the distance between studs and studs, so that there is no gap between them. As a result, the heat insulation effect is also increased.

[0015]

1 is a perspective view showing an embodiment of a heat insulating material for partition walls according to the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG.
A cross-sectional view by lines is shown.

The partition wall heat insulating material 11 includes a plate-like inorganic fiber type heat insulating material 12 and an inorganic fiber type heat insulating material 12 as a whole.
And the surface covering material 13 that covers the. The surface material 13 is
With the middle portion in the thickness direction of the inorganic fiber heat insulating material 12 as a boundary, the half located on one surface side forms a moisture-proof portion 13a,
The half located on the other surface side forms a moisture permeable portion 13b.

As the inorganic fiber heat insulating material 12, an inorganic fiber material having a density of preferably 6 to 24 kg / m ³ , and more preferably 8 to 16 kg / m ³ is used. Specifically, glass wool, rock wool and the like can be used, but glass wool is particularly preferably used.

Further, the surface covering material 13 may be formed of a moisture-proof sheet as a whole, and may have moisture permeability by providing a large number of holes only in the moisture-permeable portion 13b. It may be made by connecting a sheet and a breathable sheet.

The sheet forming the moisture-proof portion 13a of the surface covering material 13 has a moisture permeability resistance of 30 m ² · h · mmHg / g or more and a thickness of
A sheet of about 0.02 to 0.2 mm is preferable, and specifically, a resin thin film of polyester, polyethylene, vinyl chloride, vinylidene chloride, polystyrene, polypropylene or the like, a laminate of kraft paper and the above resin thin film, or the above resin thin film. It is preferable to use a laminate of aluminum foil with aluminum foil, a laminate of the above resin thin film with aluminum, or the like.

The sheet forming the moisture permeable portion 13b of the surface covering material 13 has a moisture permeability resistance of 1.5 m ² · h · mmHg / g or less and a thickness of
A sheet with a thickness of about 0.02 to 0.2 mm is preferable. Specifically, a number of holes are formed in the moisture-proof sheet so that the moisture permeability resistance is 1.5 m.
A material which is adjusted to ² · h · mmHg / g or less and a non-woven fabric are preferably used.

The partition wall heat insulating material 11 is used by being bent in a construction method described later, and the thickness H thereof is preferably 50 to 100 mm, more preferably 65 to 85 mm. Further, it is preferable that the vertical and horizontal lengths are different from each other, and the length L of the long side is preferably 415 to 460 mm. Further, the length D of the short side is preferably 365 to 410 mm. By setting the vertical and horizontal lengths in this way, as described in detail later, depending on the width of the place to be installed, insert the long side direction in two folds or the short side direction in two folds. Can be inserted.

Next, a method of applying the partition wall heat insulating material of the present invention will be described.

FIG. 3 shows an embodiment in which the partition wall heat insulating material 11 shown in FIGS. 1 and 2 is applied to the upper portions of the partition walls 35a and 35b.

Between the partition wall 35a, the ceiling finishing material 36a and the field edge 37a and the partition wall 35b, the ceiling finishing material 36b and the field edge 37b, the partition wall heat insulating material 11 and the front cover material 1 are provided.
Bend and insert so that the moisture-proof portion 13a of 3 is inside. Then, the insulating material 1 for bent partition walls
The outer side of 1, i.e., the surface in contact with the partition walls 35a, 35b is a surface covered with the moisture permeable portion 13b of the surface covering material 13, and the moisture between the partition walls 35a, 35b can be released upward.

FIG. 4 shows an embodiment in which the partition wall heat insulating material 11 shown in FIGS. 1 and 2 is applied to the lower portion of the partition wall.

The partition wall heat insulating material 11 is placed between the partition wall 35a and the partition wall 35b so as to be in contact with the floor joist 38.
Is bent and inserted so that the moisture permeable portion 13b of the front cover material 13 is on the inside. Then, the outside of the bent partition wall heat insulating material 11, that is, the partition walls 35a, 35.
The surface in contact with b and the floor joist 38 is a surface covered with the moisture-proof portion 13a of the surface covering material 13, and ventilation can be stopped from under the floor to prevent moisture from entering.

FIG. 5 shows the columns 40 and 41 in the partition wall.
1 between the stud 41a and the stud 41a and 41b.
One example of constructing the partition wall heat insulating material 11 shown in FIG. 2 is shown.

Generally, the distance between the pillar 40 and the stud 41a is about 390 mm, and the distance between the stud 41a and the stud 41b is about.
It's 425mm, but the length is different. The partition wall heat insulating material 11 shown in FIGS. 1 and 2 has a long side length L of 415.
Since the length D of the short side is 460 mm and the length D of the short side is 365 mm to 410 mm, the stud is inserted between the column 40 and the stud 41 a by folding the long side in two around the line a in FIG. Between 41a and the stud 41b, the short side direction is folded in two around the line B in FIG. 1 and inserted. In this way, by changing the bending direction, it is possible to correspond to the length of the place to be constructed.

Next, the case where the heat insulating material for partition walls of the present invention is applied by the method of the present invention,
Comparison was made with the case where the conventional heat insulating material was cut and constructed.

Example 1 Phenolic resin binder of 3% by weight as solid content was adhered to glass short fibers having an average diameter of 7 μm, density 10 kg / m ³ , thickness 75 mm, long side 430 mm,
An inorganic fiber type heat insulating material with a short side of 395 mm was covered with a moisture-proof surface covering material composed of a polyethylene thin film having a thickness of 20 μm and a moisture permeability resistance of 60 m ² · h · mmHg / g. Then, with the middle part in the thickness direction of the heat insulating material as a boundary of the front covering material, one surface is a moisture-proof part made of the polyethylene thin film, and the other surface is provided with a large number of holes in the polyethylene thin film. Moisture resistance 1.02m ²
・ We obtained a heat insulating material for partition walls with a moisture permeability of h · mmHg / g.

This heat insulating material for partition walls was bent so that the moisture-permeable front covering material was on the inside, and inserted into the lower part of the partition wall. The long side direction was folded in half between the pillar and the stud, and the short side direction was folded in half between the stud and the stud.

Example 2 A partition wall heat insulating material similar to that used in Example 1 was bent so that the moisture-proof surface covering material was on the inside, and was inserted into the upper part of the partition wall. The long side direction was folded in half between the pillar and the stud, and the short side direction was folded in half between the stud and the stud.

Comparative Example 1 "Mat Ace Silver 50" (product name, which is a heat insulating material for a house having a density of 10 kg / m ³ , a thickness of 50 mm, a width of 430 mm and a length of 1370 mm)
Asahi Fiber Glass Co., Ltd.) was cut into a length of 430 mm, bent, and inserted into the lower part of the partition wall.

Comparative Example 2 "Matte Ace Silver 50" (trade name, which is a heat insulating material for a house having a density of 10 kg / m ³ , a thickness of 50 mm, a width of 430 mm and a length of 1370 mm)
Asahi Fiber Glass Co., Ltd.) was cut to a length of 430 mm, and then the asphalt kraft paper which is a moisture-proof surface material was peeled off to make bare glass wool, which was lightly loosened, bent, and inserted into the upper part of the partition wall.

The methods of Examples 1 and 2 and the methods of Comparative Examples 1 and 2 were applied to a conventional wooden house in Hokkaido and Kanagawa prefecture, and the wall surface temperature of the partition wall was measured by a surface thermometer in winter. As a result of comparison, the partition wall to which the method of Examples 1 and 2 was applied was higher by about 2.3 to 2.6 ° C. this is,
It is presumed that the partition wall could be constructed correctly and the gap was not created.

Further, the working time of Example 1 was shortened to about half that of Comparative Example 1. In addition, the working time of Example 2 was about 1/3 of that of Comparative Example 2. Furthermore, in Examples 1 and 2, compared with Comparative Examples 1 and 2, there was no tingling sensation due to glass wool during handling, cutting waste did not become dust and did not deteriorate the working environment, and further, necessary size was cut. A large amount of unusable semi-finished products later did not increase the amount of dust, and there was no need for cutting waste processing work.

[0037]

As described above, the partition wall heat insulating material of the present invention needs to be cut out even when it is inserted in the upper part or the lower part of the partition wall or when the length of the application site is different. Therefore, it does not take time and effort to cut out, does not feel the discomfort that the builder feels when handling, cutting waste does not deteriorate the work environment as dust, and the required size A large amount of unusable semi-finished products will not be produced after cutting and the amount of dust will not increase, and the work of cutting waste will be reduced. Therefore, the construction time is greatly reduced. In addition, since the same type of partition wall heat insulating material can be applied accurately to the application site, the heat insulating effect is increased.

When the partition wall heat insulating material of the present invention is constructed by the construction method of the present invention, it is possible to prevent moisture from entering the partition wall from under the floor and to release the moisture in the partition wall from the upper part. You can

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a heat insulating material for partition walls of the present invention.

FIG. 2 is a sectional view taken along line AA of the heat insulating material for partition walls.

FIG. 3 is a cross-sectional view showing an embodiment of a method for applying a heat insulating material for partition walls of the present invention.

FIG. 4 is a cross-sectional view showing another embodiment of the method for applying the heat insulating material for partition walls of the present invention.

FIG. 5 is a side cross-sectional view seen from the wall side, showing still another embodiment of the method for applying the heat insulating material for partition walls of the present invention.

[Explanation of symbols]

 11 Insulation Material for Partition Walls 12 Inorganic Fiber Insulation Material 13 Surface Cover Material 13a Moisture-Proof Part of the Surface Cover Material 13b Moisture Permeable Part of the Surface Cover Material 35a, 35b Partition Walls 36a, 36b Ceiling Finish Material 37a, 37b Wild Edge 38 floor joist 40 pillars 41a, 41b studs

Claims (7)

[Claims] 1. An inorganic fiber heat insulating material having a plate shape as a whole, and a surface covering material that covers an outer periphery of the inorganic fiber insulating material, wherein the surface covering material is in a thickness direction of the inorganic fiber insulating material. A heat insulating material for partition walls, characterized in that the half located on the one surface side is moisture-proof and the half located on the other surface side is moisture permeable, with the middle part of the boundary as a boundary. 2. The heat insulating material for partition walls according to claim 1, wherein the moisture-permeable portion of the surface covering material is formed of a moisture-proof sheet having a large number of holes formed therein. 3. A is a moisture permeable resistance of the portion forming the moisture resistance of the table covering material is 30m ² · h · mmHg / g or more, moisture permeation resistance of the portion constituting the moisture permeability 1.5m ² · h · mmHg / The heat insulating material for partition walls according to claim 1 or 2, which is g or less. 4. The heat insulating material for partition walls according to claim 1, wherein the vertical and horizontal lengths are different. 5. The long side has a length of 415 to 460 mm, the short side has a length of 365 to 410 mm, the thickness is 50 to 100 mm, and the density is 6
The heat insulating material for partition walls according to claim 4, wherein the heat insulating material is about 24 kg / m ³ . 6. An inorganic fiber type heat insulating material having a plate shape as a whole and a surface covering material covering an outer periphery of the inorganic fiber insulating material, wherein the surface covering material is in a thickness direction of the inorganic fiber insulating material. Using the heat insulating material for partition walls, half of which is on one surface side is moisture-proof and half of which is on the other surface is moisture-permeable, with the middle part of Occasionally, it is bent and inserted so that the moisture-proof portion of the front cover material is on the inside, and when it is placed in the lower part of the partition wall, it is folded so that the moisture-permeable portion of the front cover material is on the inside. A method for constructing a heat insulating material for partition walls, which is characterized by inserting. 7. The partition wall heat insulating material having different vertical and horizontal lengths is used.
The method for applying a heat insulating material for partition walls, wherein the long side direction is folded in two and inserted, or the short side direction is folded in two and inserted.