JPH0138184Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sound and insulation board for inner walls that has excellent heat insulation properties, soundproof properties, and internal condensation prevention properties.

Traditionally, interior walls of housing complexes made of reinforced concrete, buildings made of precast concrete boards, ALC boards, etc. have been painted using a simpler method than painting with mortar or plaster, as shown in Figures 3 and 4. As shown, a method of finishing a hard surface material 1 such as a gypsum board on a wall 9 with a gypsum bond 6 or an adhesive 7 has been used.

Furthermore, in order to improve the heat insulation properties, heat insulating composite boards in which these hard face materials are lined with a hard synthetic resin foam such as a hard urethane foam have also been used.

However, such hard surface materials and heat-insulating composite boards do not have a soundproofing effect that blocks the propagation of sound caused by vibrations from the outside or inside of the wall.

In other words, since the hard surface material, heat insulating composite board, plaster bond or adhesive, and wall are all made of hard materials and have an integral structure, sound will propagate through each hard material. . In addition, in the GL method, as shown in Figure 3, in which the gypsum bond 6 is raised in a dumpling shape and bonded,
Since an air layer 8 is formed between the wall and the hard surface material (or the heat insulating composite board), the air layer has a spring-like action that tends to cause sound amplification due to resonance. In addition, when such a heat insulating composite board is installed on the inner wall side, it is effective in preventing dew condensation on the surface of the composite board due to its high insulation properties, but condensation inside the heat insulating material and dew condensation in the air layer 8 may occur. Or wall 9
Condensation will occur inside. In other words, when heating a room in the winter, the indoor temperature and humidity become considerably higher than the outside temperature, and the moisture pressure difference between the room and the outside air causes moisture to move from the room to the outside, causing damage to the inside of the heat insulating composite board, the air layer 8, and the wall 9. The moisture pressure in each part increases, and the temperature decreases due to the heat insulating composite board, causing the dew point temperature to exceed the actual temperature, causing dew condensation to occur in each part. Such condensation inside the heat insulating composite board, in the air layer 8, or inside the wall 9 can reduce the insulation properties of the composite board, accelerate the deterioration of the hard synthetic resin foam itself, and reduce the durability of the wall. There were some drawbacks that made it worse.

The present invention aims to eliminate such conventional drawbacks and provide a soundproof and heat-insulating board for interior walls that has not only heat insulation properties but also excellent soundproofing properties and internal dew condensation prevention properties.

That is, the present invention includes a hard surface material, a first moisture-proof material,
This invention relates to a soundproof and heat insulating board for inner walls, which is made by sequentially laminating and integrating a shock absorbing hard synthetic resin foam with a sound absorbing property of 30 g/cm ² or more under load at 10% strain, and a second moisture proofing material.
As the hard surface material 1 in this invention, gypsum board,
Calcium silicate board, asbestos slate board, perlite board, plywood board, lauan board, etc. can be used. As the cushioning material 2 in the present invention, soft polyurethane foam, polyethylene foam, soft PVC foam, felt, glass wool mat, rock wool mat, etc. can be used, but these materials have a load of 30 g / 10% strain from the surface pressure resistance of the wall. It is necessary to have a thickness of cm ² or more, and the thickness is preferably 3 mm or more. As the hard synthetic resin foam 3 in the present invention, hard urethane foam, urethane modified isocyanurate foam, isocyanurate foam, hard epoxy foam, styrene foam, phenol foam, etc. can be used.

As the first moisture-proof material 4 in the present invention, aluminum foil, polyethylene film, polypropylene film, polyester film, etc. can be used. These moisture-proof materials preferably have a moisture permeability resistance value of 50 m ² hr.
mmHg/g or more is better, and if it is aluminum foil
7μ or more, and polyethylene films of 15μ or more fall within this range. As the second moisture-proofing material 5, the same material as the first moisture-proofing material 4 described above can be used. This second moisture-proofing material 5 has the following ingredients: Furthermore, nonwoven fabric, kraft paper, etc. may be laminated. In order to integrate the hard surface material, the first moisture-proofing material, the cushioning material, the hard synthetic resin foam, and the second moisture-proofing material, they may be laminated and integrated with an adhesive between the respective materials, In particular, hard synthetic resin foams that have self-adhesive properties and can be integrally molded can be used to make use of their self-adhesive properties to create a second moisture-proofing material, a cushioning material (the first moisture-proofing material and a hard surface material are added to the cushioning material in advance). ) may be laminated and integrated at the same time. In addition, in order to integrally install the heat insulating board of the present invention on a concrete wall surface, in addition to the above-mentioned method of attaching the heat insulating board to the concrete wall surface using adhesive or plaster bond,
It is also possible to use a known method of laminating and integrating the concrete by pouring concrete at the same time as the concrete hardens.

The sound insulation board of the present invention has excellent heat insulation properties and can absorb and damp sound vibrations propagating from the wall side or the hard surface material side using the buffer material, so it exhibits an excellent sound insulation effect.

In addition, when the GL method is used to bond the wall to the wall, the amplification of sound due to resonance, which was likely to occur in the past, can be absorbed and reduced by layering cushioning materials. In addition, the sound insulation insulation board of the present invention has a structure in which both sides of the cushioning material and the hard synthetic resin foam are sandwiched with a moisture-proof material, so that the moisture pressure that decreases from the indoor side to the outdoor side is absorbed by the first moisture-proof material. 4
, the dew point temperature will drop below the actual temperature at each point from the cushioning material after the moisture-proof material on the indoor side to the outdoor side, making it possible to prevent internal dew condensation. The moisture-proof material 5 blocks moisture from the concrete wall and prevents moisture from being absorbed into the hard synthetic resin foam, thereby preventing a decrease in insulation properties due to internal condensation and deterioration of the material itself. It has the advantage of being able to

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an example of the soundproofing insulation board of the present invention, Figure 2 is a sectional view showing the soundproofing insulation board shown in Figure 1 adhered to a wall, and Figures 3 and 4 are conventional It is a sectional view showing an example. 1... Hard surface material, 2... Cushioning material, 3... Hard synthetic resin foam, 4... First moisture-proof material, 5... Second
Moisture proof material.

Claims (1)

[Scope of utility model registration request] Hard surface material, first moisture barrier material, load at 10% strain is 30
A soundproof and heat-insulating board for inner walls, which is made by sequentially laminating and integrating a cushioning material having a sound absorbing property of g/cm ² or more, a hard synthetic resin foam, and a second moisture-proofing material.