JPH1037340A - Heat insulating material and humidity adjustment sheet for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve building durability by properly isolating the the fresh air from the internal air thermally, and absorbing water vapors on heat insulating material surface for the prevention of dew condensation. SOLUTION: This heat insulating material is made of a flat heat insulating plate 12 and a sheet type humidity adjustment material 14 evenly attached to the side thereof. The humidity adjustment material 13 in this case is made of two water vapor permeable sheets 16 pasted to each other, as well as active carbon 22 fully contained between the two sheets 16. Furthermore, the sheets 16 are formed to have fine irregularity parts 16 externally projected throughout, and the irregularity parts 16 are filled with the active carbon 22.

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 and a humidity control sheet for buildings to be put in the inside of a wall of a building, under a floor, in an attic, and the like.

[0002]

2. Description of the Related Art Conventionally, in various buildings, in order to block the heat of the outside air in summer and to keep the inside warm in winter, the space between the outer and inner walls of the building, under the floor, attic, etc. Insulation is put. Examples of the heat insulating material include a plate-shaped heat insulating plate made of a high-expanded polyethylene-based material or expanded polystyrene, and a fiber-based material such as glass wool or rock wool. These heat insulating plates are fitted between the vertical frames of the building, between the rafters, between the floor joists, and the like, and fixed to the vertical frames and the rafters. In particular, since the foamed resin-based heat insulating plate has an appropriate elasticity, it can be applied to a vertical frame, a rafter, etc. without gaps, efficiently shutting off the transmission of heat inside and outside the room, and keeping the room at a comfortable temperature. Can be kept.

[0003]

In the case of the above prior art, these heat insulating materials can prevent the heat generated by the heating of the room from escaping to the outside during the winter period. Since the temperature of the surface is low, dew condensation occurs on the indoor surface of the heat insulating material. When the water droplets due to the generated dew increase, the water droplets fall along the surface of the heat insulating material, and the water droplets fall on wood or the like which is a component of the building. Moldy or rotten parts of the wet parts of the timber have impaired the durability of the building. Further, there is also a problem that the wood, which is a structural material, becomes susceptible to termite damage due to moisture. In addition, since the indoor wall surface is lower in temperature than the room temperature in winter, there is also a problem that dew condensation occurs on the indoor wall surface.

[0004] The present invention has been made in view of the above-mentioned problems of the prior art, and reliably shuts off heat between the outside air and the inside air, and absorbs water vapor on the surface of the heat insulating material to prevent dew condensation. An object of the present invention is to provide a heat insulating material and a building humidity control sheet that enhance the durability of a building.

[0005]

SUMMARY OF THE INVENTION The present invention is a heat insulating material comprising a heat insulating member provided in a building and a sheet-like humidity control member attached to the surface of the heat insulating member. The humidity control member has a moisture permeable sheet filled with a humidity control agent capable of absorbing and releasing water vapor. Also,
The humidity control member is a charcoal particle such as activated carbon or charcoal. The sheet has fine irregularities formed on the surface, and the inside of the protrusion is filled with the humidity control agent.

The present invention is also a humidity control sheet for building comprising a sheet of paper or the like which is provided so as to be attachable to a building and through which water vapor can pass, and a humidity control agent filled inside the sheet. The sheet is a building humidity control sheet in which fine irregularities are formed on one surface, and the inside of the protrusions is filled with the humidity control agent. Further, the humidifier is charcoal particles such as activated carbon and charcoal.

[0007] In the heat insulating material of the present invention, since the humidity control agent efficiently absorbs water vapor that tends to condense on the surface of the heat insulating material due to the temperature difference between the inside air and the outside air of the building, water droplets are generated on the heat insulating material surface. Nothing.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention.
Numeral 0 denotes a heat insulating member 12 made of a highly foamed polyethylene material, polystyrene, or another foamed resin. The heat insulating member 12 has an appropriate elasticity and does not have humidity control and moisture permeability. A humidity control sheet 14, which is a sheet-shaped humidity control member, is attached to the heat insulating member 12 with an adhesive or the like. The heat insulating member 12 may be foamed and sprayed on site, or may be a fiber heat insulating member such as glass wool or rock wool. Then, the humidity control sheet 14 is formed by attaching a flat backing paper 20 to a surface opposite to the direction in which the irregularities 16 project, on a cover 18 formed by projecting a plurality of fine wavy irregularities 16 on one surface. I have. Cover 18 and back 2
Numeral 0 is made of a material which has water resistance and can pass water vapor. Activated carbon 22 as a humectant is provided in the projections of the uneven portion 16.
Is filled. The humidity control sheet 14 is attached to one side of the heat insulating member 12 such that the backing paper 20 is in contact with the heat insulating member 12. The activated carbon 22 may be any charcoal having high humidity control and capable of absorbing and releasing water vapor, and its material is not limited.

A method of using the heat insulating material 10 of this embodiment will be described with reference to FIG. FIG. 2 shows a wall portion in the middle of the construction process of a wooden house, in which vertical frames 24 are provided at regular intervals in the vertical direction with respect to the ground, and a window sill 26 and a lintel 2 are provided in the window portion.
8, an opening is formed. A load bearing panel 30 and the like are attached to the outside of the vertical frame 24, and different members are provided depending on a construction method. There, vertical frame 24, 24
Insulation material 1 cut into suitable size in advance
0 so that the humidity control sheet 14 is on the indoor side,
Then, the heat insulating material 10 and the vertical frame 24 are fixed. At this time, since the heat insulating material 10 has appropriate elasticity, the vertical frame 24
Close contact with the surface and do not create any gaps. When the length of the heat insulating material 10 in the vertical direction is insufficient, a plurality of heat insulating materials 10 having the same width are arranged vertically, and seams of the heat insulating materials 10 and 10 are laid with tape 32 such as aluminum. Then plaster board 3
4 is attached to the indoor side of the vertical frame 24.

Next, FIG. 3 shows a floor portion in the middle of the construction process of the wooden house, and the floor is pulled at equal intervals in the horizontal direction with respect to the ground.
Are provided, and the joists 3 are arranged at regular intervals in
8 is attached. There, the heat insulating material 10 between the joists 38, 38 is cut into a suitable size in advance, and has a step portion 40 which is locked at the upper corner of the pulling bar 36.
Is fitted so that the humidity control sheet 14 is on the indoor side. Thereafter, an underfloor lining material (not shown) is attached to the joist 38.

According to the heat insulating material 10 of this embodiment, the room temperature can be reliably maintained in winter or the like. And
Since the surface of the heat insulating material 10 has a lower temperature than room temperature, the heat insulating material 1
However, the dew condensation easily occurs on the indoor side surface of the room 0, but the activated carbon 22 in the humidity control sheet 14 absorbs water vapor to prevent dew condensation. As a result, there is no problem that the water droplets due to the dew condensation moisten the wood or the like, which is a component of the building, and mold or grows. In addition, by preventing humidity control and rotting of wood, termites can be made less susceptible to damage.
The heat insulating material 10 has a simple structure in which the heat insulating member 12 and the humidity control sheet 14 are simply attached, and is easy and convenient to mount. Since the heat insulating material 10 is soft and can be easily cut with a cutter or the like, the heat insulating material 10 can be cut freely according to the shape of the building, and can be cut without gaps, so that heat can be cut off efficiently. The activated carbon 22 has an effective action of preserving, deodorizing, termite-proofing and the like in addition to humidity control, and has an effect of increasing the durability of a building.

The heat insulating material of the present invention may be a heat-insulating member made of an in-situ foamed resin to be foamed on site or a fiber heat-insulating member other than the heat insulating plate made of a foamed resin. It is sufficient that a humidity control sheet is attached in advance or on site. In addition, it can also be used for roof construction, and when used for roofs, a heat insulating material cut into a suitable size in advance is inserted between rafters. In order to prevent the heat insulating material from dropping from the rafter, an engaging member may be attached between the rafter and the heat insulating material. Further, the heat insulating material is not limited to the above-described embodiment, and can be appropriately changed such as a material and a shape of the heat insulating member and the humidity control agent.

[0013]

The heat insulating material of the present invention has a simple structure, is easy to install, and has a reliable heat insulating effect. The present invention prevents dew condensation occurring on the surface of the heat insulating member due to a temperature difference between the outside air and the inside air, prevents humidity control and decay of wood, which is a component of the building, and enhances the durability of the building. In addition, the architectural humidity control sheet of the present invention can prevent dew condensation on the surface of a heat insulating material, prevent moisture control and decay of wood due to the drop of dew, and enhance durability of a building.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a use state of a heat insulating material according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a use state of a wall portion of a building of the heat insulating material of this embodiment.

FIG. 3 is a perspective view showing a use state of a floor portion of a building of the heat insulating material of this embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Insulation material 12 Insulation member 14 Humidity control sheet 20 Back paper 18 Cover 22 Activated carbon

Claims (6)

[Claims] 1. A heat insulating material comprising: a heat insulating member provided in a building; and a sheet-like humidity control member attached to a surface of the heat insulating member. 2. The heat insulating material according to claim 1, wherein the humidity control member is filled with a humidity control agent capable of absorbing and releasing water vapor in a moisture-permeable sheet. 3. The heat insulating material according to claim 2, wherein the humidity control member is charcoal particles, the sheet has fine irregularities formed on the surface, and the inside of the convexes is filled with the humidity control agent. . 4. A building humidity control sheet comprising a sheet which is provided so as to be attachable to a building and through which water vapor can pass, and a humidity control agent filled inside the sheet. 5. The humidity control sheet for building according to claim 4, wherein the sheet has fine irregularities formed on one surface, and the inside of the protrusions is filled with the humidity control agent. 6. The humidity control sheet for building according to claim 5, wherein the humidity control agent is charcoal particles.