JPS6027335B2 - Insulation construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a heat insulating material, and more specifically, to a method for forming a heat insulating layer in the ceiling, under the floor, etc. of a building.

In recent years, energy-saving measures have been taken to improve the insulation of existing buildings, such as glass wool and synthetic resins, and to re-insulate existing buildings. It is considered ideal to provide a heat insulating layer with a thickness of 20 to 3&1.

As shown in Figure 2, the conventional method for installing insulation materials is to cut insulation materials 1', such as mat or plate-shaped glass wool, into appropriate sizes and lay them behind the ceiling 2'. Although it is normal, this method requires a lot of work, and especially when insulating the ceiling, the ceiling is narrow and there are many obstacles such as hanging trees, wiring posts, walls, etc., which can hinder the work. However, gaps tend to form around these obstacles, and due to the roof edges and beams, spaces are created between the ceiling and the insulation material, reducing the insulation effect.

On the other hand, the method of the present invention blows or compresses air from a blowing machine loaded on a working vehicle into a fibrous insulation material such as glass wool, which is then blown into a flexible conduit, such as a hose, to the desired location in the ceiling, etc. It forms a layer of heat insulating material with a constant thickness by blowing into the area without gaps, and the first
As shown in the figure, the fibrous insulation material 1, such as glass wool roll, which has been loosened into small pieces of 20 to 30 skins by a crusher, is used to remove the required constant amount related to obstacles (beams, hanging trees, etc.) behind the ceiling 2. It is loaded with a gap in thickness. The present invention has the above-mentioned structure, unlike the conventional method of laying mat-like plate-like materials, the heat insulating material can be spread at desired locations without any gaps, and is extremely efficient. It is also economical because the cut layer at the end can be used.

When the crushed small-sized fibrous insulation material used in the insulation construction method of the present invention is air-powered, fiber dust may be scattered at the construction site, or it may be placed in locations other than the intended purpose, such as pillars. Since fiber dust may stick to clothing or work clothes, reducing work efficiency, it is possible to pre-treat bulk insulation materials with a chemical that prevents fiber dust from scattering and sticking.

This pre-treatment agent can be used as long as it can prevent fiber dust from scattering or sticking during construction, and it is preferable to use a pre-treatment agent that disperses once it has been supplied to the designated location. However, it may also be a chemical that can be used as a heat insulating layer while remaining attached to the fibers without being dispersed. Such agents include water, petroleum compounds such as nonvolatile liquid paraffin or lubricants, or antistatic agents such as quaternary ammonium salt type antistatic agents, alkyl phosphates, polyoxyethylene alkylamines, glycerin fatty acid esters, etc. (Product name: Anstek, Eretatsut, Texnor,
eretol), etc., and these substances can be used alone or in a liquid form to coat the surface of the heat insulating material in an amount of 0.1 to 5 of the weight of the heat insulating material.
It can be applied by Akebono in an amount of %. Antistatic agents are particularly effective in preventing dust from scattering due to static electricity caused by friction or from adhering to places other than the intended purpose, such as pillars or work clothes. In addition, in order to prevent the deterioration of the insulation effect due to moisture absorption of the crushed fibrous insulation material,
Either a foaming resin solution such as a polyurethane solution is sprayed onto the upper surface of the insulating material that has already been supplied and cured to cover the surface with a resin layer, or the insulating material is further supplied and loaded on top of this resin layer and the upper surface is cured. The resin layer can be provided as described above.

Two or more resin layers can be provided as desired. By interposing the resin layer between the heat insulating materials in this way, it is possible not only to prevent moisture absorption from the outside, but also to prevent mist formation in the heat insulating materials due to changes in temperature.
In addition, when carrying out the method of the present invention, if there is a gap between the ceiling and the space in an existing house, etc., it is necessary to cover the gap with a vinyl sheet, thin metal plate, etc., or sprinkle flaky mineral particles, etc. After that, the gap may be closed with a moisture-proof layer made by removing and fixing the quick-drying binder to prevent the insulation effect from deteriorating due to moisture.

The present invention allows air to be delivered by air pressure not only to the above-mentioned ceilings, but also to the walls of existing structures, under floors, etc., which are too narrow to install with ordinary mat-like insulation materials. It has the advantage of being able to be constructed without any damage.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a state in which the method of the present invention is applied to a ceiling space, and FIG. 2 is a sectional view showing an example of a conventional method. In the figure, 1 indicates the granular material and 2 indicates the ceiling. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. After crushing the fibrous heat insulating material into small pieces and treating them with at least one agent selected from water, petroleum, and antistatic agents that prevents the scattering and fixation of fiber dust. A method of constructing a heat insulating material, characterized in that the material is supplied to a predetermined part of a building at a constant thickness by flowing it together with pressurized air through a flexible conduit. 2. The fibrous heat insulating material is crushed into small pieces, treated with at least one agent selected from water, petroleum, and antistatic agents to prevent scattering and adhesion of fiber dust, and then flexed with pressurized air. The material is supplied to a predetermined part of the building at a constant thickness by flowing through a plastic conduit, and then a foaming resin solution is sprinkled on top of this to form a foamed hardened layer, and if desired, a small lump of fiber insulation material is further applied on top of the foamed resin solution. A method of constructing insulation material, which comprises supplying the same amount of water to the insulating material and repeating this operation a desired number of times.