JP2011021321A - Chaff-wall heat-insulating construction method for wooden house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve amenity and energy saving properties by enhancing the airtightness and heat insulating properties of a wooden house using a natural material. <P>SOLUTION: In this construction method, a predetermined space is secured all over the exterior wall of the wooden house, and filled with chaff as a natural material waste. In the heat-insulating house, a heat-insulating structure is provided on the periphery of the exterior wall. In the wooden house, the heat-insulating structure comprises heat-insulating space sections which are formed on the outside and inside of the exterior wall, and a chaff heat-insulating material which is infilled by installing a chaff partitioning plate in an intermediate portion in the heat-insulating space section. In the construction method, the chaff is blown off and infilled into an internal space with a thickness of 100-300 mm all over the exterior wall. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a highly airtight and highly heat-insulating method that covers the entire outer wall of a wooden house, and a method that uses waste husks.

Conventional thermal insulation materials are mostly chemical products such as glass wool, polystyrene foam, and urethane foam. To use these and increase the thermal insulation, it becomes quite expensive. Also, a lot of energy is consumed during production. Such thermal insulation methods for chemical products also go backwards from the viewpoint of preventing global warming. I would like to propose a way of living in nature, without relying on mechanical (air conditioning) comfort as much as possible.

Conventionally, it has been focused on creating a good indoor environment with attention to natural materials, but on the other hand, in order to improve comfort and energy saving, it is necessary to use chemical products with high thermal insulation. In addition, in order to achieve further high airtightness and high thermal insulation and improve comfort and energy saving, chemical products become expensive, and carbon dioxide emissions are increased when considering energy during production.

A heat insulating material used for a building, which is made of a non-woven fabric sandwiching a core portion having a structure that forms a plurality of voids therein, a rice husk filled in the voids, and a core portion having the structure A proposal was made for a thermal insulation for buildings characterized by having a face material. (See Patent Document 1)

A heat insulating house provided with a heat insulating structure around an outer wall, wherein the heat insulating structure includes a heat insulating space formed by a frame projecting outside the outer wall, and a heat insulating material filled in the heat insulating space. As the heat insulating house provided, the thickness width is 20 to 40 cm, and a heat insulating house using cellulose fiber, glass wool, wool, chaff, straw, and wood waste as a heat insulating material has been proposed (see Patent Document 2).

In the outer wall body composed of structural plywood and insertion support wooden frame and bamboo rail, heat insulation board solidified by mixing cocoons and adhesives, preservatives, ant repellants and drying, It is attached between the insertion support wooden frame and the bamboo frame, and the top surface of the heat insulation board is covered with a moisture-proof sheet, and the bamboo that becomes the wooden dance foundation is placed on the upper part of the insulation board. A clay wall material mixture composed of soil and rice husk, straw, lime, and water is applied to the wooden base and covered, and a surface crack prevention net is applied to the top surface of the soil wall material mixture and dried. A lightweight clay wall panel for construction has been proposed. (See Patent Document 3)

In addition, as a construction material using rice husks characterized in that a large number of rice husks are solidified integrally with a curing agent, it has been proposed that the rice husks are 30 to 60% by weight of the whole. (See Patent Document 4)

JP 2004-169547 A JP 2009-84936 A JP 2003-35007 A JP 2003-13512 A

In the conventional inner heat insulating structure, since the heat insulating material must be installed in a state where a predetermined space for ventilation is secured inside the wall, the installation location and the thickness of the heat insulating material are limited. For this reason, the effect of installing the heat insulating material cannot be obtained sufficiently, and there is a problem that the room temperature cannot be maintained in a comfortable state unless a cooling / heating facility such as an air conditioner is borrowed in midsummer or midwinter.

Moreover, the room temperature which became comfortable state by the said air conditioning equipment will return to the same state as external air with progress of time. For this reason, the operation rate of the said air conditioning equipment increases, and there also exists a problem of causing an environmental destruction in connection with it.

  On the other hand, in a conventional outer heat insulating structure, there are two methods of construction, in which a heat insulating material is provided on the inner side of a wall facing the room and applied on the outer side of the wall. The former construction method has a drawback that the indoor living space becomes narrow depending on the thickness of the heat insulating material. On the other hand, since the latter construction method installs the said heat insulating material in the outer side of a wall, it can adjust the thickness of a heat insulating material freely, without narrowing an indoor living space.

However, it is difficult to obtain the heat insulation effect until the air conditioning equipment is not required only by adjusting the thickness of the heat insulating material. Moreover, since the weight increases when the heat insulating material is formed thick, there is a problem that the fixing to the wall must be made strict.

  In addition, in a conventional ventilation system in a house, there is one in which an underfloor space and a shed space are communicated with each other through a ventilation space provided in a wall. Since the space for ventilation is narrowed by installing the heat insulating material inside, there is a problem that the air flow between the underfloor space and the attic space is not smoothly performed.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a heat-insulated house having a heat-insulating structure capable of keeping the indoor temperature comfortable with minimum energy while minimizing the operating time of air-conditioning equipment such as an air conditioner, and the heat insulating material (rice husk). ) To provide an all-room air conditioning system that can improve heat insulation efficiency. To improve the energy saving rate of wooden houses by 30%, increase heat insulation and airtightness. However, we want to reduce the unit price of the building.

When considering indoor air environment and carbon dioxide emissions during production, we do not want to use chemical insulation products too much. In addition, we want to use waste materials made of natural materials as much as possible. We want to make use of heat insulation materials that are excellent in heat insulation, hard to burn, are light and easy to use, and do not cause condensation in the walls.

The present invention has been made in view of the above circumstances, and aims at a heat insulation method that is excellent in heat insulation, is formaldehyde-free, inexpensive, uses natural materials, and improves comfort and energy saving. .

In order to solve the above-described problems, the heat-insulated house of the present invention is a heat-insulated house having a heat-insulating structure around an outer wall, and the heat-insulating structure is formed by a frame projecting outside the outer wall. And a heat insulating material filled in the heat insulating space.

  In addition, the ventilation system of the present invention includes an air circulation path in which the ventilation path provided on the outer periphery of the heat insulating structure and the attic space communicate with each other, and introduces outside air from an outside air inlet provided at one end of the ventilation path. Thus, the cooling / heating efficiency in the house is enhanced by circulating the air circulation path.

In order to solve the above-mentioned objects and problems, we focused on rice husk, which is a waste material for heat insulation. Rice husk is a natural material, inexpensive, excellent in heat insulation, light and difficult to burn, and workability. It is also easy.

A heat insulating house having a heat insulating structure around an outer wall of a wooden house, wherein the heat insulating structure includes a heat insulating space formed by a plate frame body and an internal moisture-proof sheet outside the outer wall, This is a husk wall insulation method for a wooden house in which rice husk is blown into the outer wall space having a thickness of 100 mm to 300 mm to fill the entire inside of the outer wall provided with a husk partition plate in the middle part.

Insulation of rice husks is filled with rice husks in the outer wall without any gaps, ensuring the width of the external pillars and studs of wooden houses, 100mm to 150mm outside, and the thickness of 100mm to 300mm with the piles of pillars and studs stacked, and the outer side is 4mm to 12mm. The water-resistant plywood is nailed to the pillars at intervals of 300mm to 450mm at intervals of 150mm, the moisture-proof sheet is applied to the outer surface side, and the translucent moisture-proof sheet is attached to the inner surface side with creases at intervals of 800mm to 900mm. Is set to 100 mm to 150 mm, the inner wall side is pressed from the top with the trunk edge, the gap between the trunk edges is set to 100 mm to 400 mm, and the outer peripheral foundation rising width is also set to the same width as the outer wall width.

In the rice husk partition plate (rice husk settlement prevention plate), when filling the rice husk with wind power, as a method to prevent the settlement due to the air layer and its own weight, it is 1m to 2m above the floor of the wall and the plywood has a diameter of 20mm to 40mm. 5-10 holes are evenly formed, and are attached to both sides of the pillar and inter-column so that the step is 50 mm to 200 mm, and a clearance of 20 mm to 30 mm is secured at both ends, so that the chaff in the wall body is filled smoothly it can.

The heat insulating frame of the outer wall has a thickness width for filling a plywood on the exterior of the heat insulating material, filling the surface with a moisture-proof sheet and filling the rice husk, and installing a translucent moisture-proof sheet on the inner side of the heat-insulating wall This is a rice husk wall insulation method for a wooden house that is stretched and comprises a plywood, a rice husk, and a translucent moisture-proof sheet.

On the other hand, in the outer heat insulating structure, since the heat insulating material is provided outside the wall, the ventilation space inside the wall can be taken effectively, but since the heat insulating effect is not sufficient, it is sent from the underfloor space. There is a problem that the cool air that is coming and the warm air that is sent from the attic space cannot be efficiently led into the room as it is.

Further, since the cool air sent from the underfloor space often contains moisture, there is a risk of corroding the wall when introducing outside air into the room.
According to the present invention, a heat insulating material of rice husk, which is a natural material, is filled with a predetermined thickness without a gap, thereby preventing settlement due to its own weight.

As described above, rice husk has a very good heat insulating performance, is flame retardant and has a breathability, and is therefore suitable as a heat insulating material for the outer wall of a house. In addition, since waste materials are used, there is no production cost, so they can be obtained at low cost. In addition, since it does not emit CO2 during production, it can also respond to global warming prevention. In addition, because it is a natural material, it does not cause sick house disease. In addition, it is light and easy to work with.

This construction method is effective in remarkably improving the comfort and energy saving of the house. Comfort is a house where all rooms can be warm in winter and cool in summer by eliminating the temperature difference between rooms and keeping it warm as long as possible.

Energy saving is not so much relying on mechanical cooling and heating, and by reducing energy consumption as much as possible, we aim to increase the energy saving rate by 30%.
Focusing on rice husk that can be used as a natural material and is inexpensive and available, it does not consume energy during production, and the purchase cost is low, and because it uses waste material, it is a heat insulating material that is appreciated by producers. is there.

It is sectional drawing explaining a construction procedure in carrying out the storage and construction method of the airtight heat insulation as one Example (2 stories) in a wooden house based on this invention, It is a construction procedure of the outer wall in the wooden house same as the above, and is a perspective view of a main part showing details of hermetic insulation in a state filled with rice husk. It is a perspective view (a) and horizontal sectional view (b) of the rice husk partition plate and the pillar / intermediate column of the outer wall in the same wooden house. It is sectional drawing which shows the detailed drawing of a rice husk partition board, and the construction procedure of an outer wall in the same wall wooden house same perspective view (a), horizontal sectional view (b) of outer wall, and outer wall sectional view (c). It is a perspective view of the outer wall in a wooden house same as the above, and is a perspective view showing the position of the rice husk partition plate and the construction procedure of blowing the rice husk.

An embodiment of the present invention will be described with reference to the drawings.

Hereinafter, an embodiment of a rice husk heat insulation method as a heat insulation method for a wooden house using rice husks according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a part of a sectional view of an entire wooden two-story house, and shows a state where rice husk insulation is housed inside the outer wall.

FIG. 2 is a perspective view showing details of the outer wall. First, the width of the foundation (7) was set to 210 mm, the same dimension as the wall thickness of the outer wall. A 105 mm square (31) pillar and a 105 mm × 30 mm (47) stud were attached to a 105 mm square base (10), and the foundations (14) and (47) were stacked on the outside to form an outer wall width of 210 mm. A water-resistant veneer 4mm (33) was affixed to (47) with a nail spacing of 150mm on the outer surface of the outer wall, and the seam of the veneer was lined with an airtight tape.

A moisture-proof air-permeable sheet (36) was pasted from above, and air-permeable trunk edges (34) were attached at intervals of 350 mm. After that, a rice husk partition plate (48) was attached. In (48), a plywood thickness of 12 mm, a length of 225 mm, a width of 180 mm, and six holes with a diameter of 30 mm were evenly opened and attached to the columns (13) and (47), respectively.

The attached state is as shown in FIG. When mounting, the mounting position was 1.5m and 1.6m from the base, with a step of 100mm. A 15 mm gap was provided from both ends of the outer wall so that the rice husk (17) could be dropped smoothly. After attaching (48), a translucent moisture-proof air-permeable sheet (30) was vertically attached to the inner surface of the outer wall so as not to loosen, and the overlap width was set to 100 mm.

The trunk edge (31) was attached at 300 mm intervals so that (30) did not swell from above. Further, after securing 210 mm of the inner space of the outer wall, the rice husk (17) was blown in without any gap by wind pressure, and (17) was filled to form a rice husk heat insulation layer having a thickness of 210 mm.

FIG. 5 is a perspective view of an outer wall cross section created based on one embodiment. First, the foundation (7) width is the same as the outer wall thickness 270mm, the base (10) like the above, an air-tight sheet is laid under the 150 corner, the base (10) and the base (14) 120mm × 45mm is attached, pillar (13) 150mm square and studs (47) 150mm x 30mm are placed to form a structural frame with a built-in girder, and (47) 120mm x 30mm are attached to the outer surface side of (13) and (47) to secure an outer wall internal width of 270mm .

The construction procedure of the outer surface and the inner surface of the outer wall is the same as the construction procedure described above, and the rice husk partition plate (48) has a length of 250 mm, a width of 240 mm, and twelve holes with a diameter of 30 mm. In the same manner as described above, 15 mm was opened from both ends of the outer wall as described above, and the height from the floor was 1.4 m to 1.55 m as shown in the figure, with a step of 150 mm. The rice husk (17) could be filled without gaps by the blower (50), and (48) could halve its own weight by (48), preventing spontaneous settlement.

In this way, since the foundation of the rice husk insulation supports the entire weight, the width of the heat insulation itself can be freely selected according to the region and the heat insulation capacity, resulting in both the heat insulation effect and the ventilation effect.

FIG. 3 is a perspective view (a) inside the outer wall. In order to reduce the self-weight of the rice husk by further overlapping the outer pillar with the outer wall column, a rice husk partition plate was installed at a predetermined position. The rice husk partition plate was formed with six holes with a diameter of 30 mm to eliminate the gap directly under the partition plate. In addition, by adding a predetermined level difference, the rice husk was filled into the space secured smoothly. Although it is a see-through | perspective perspective view which showed the construction procedure, the figure (b) is the horizontal sectional view of an outer wall, and has shown the installation state of the chaff partition plate.

After securing a predetermined interval inside the outer wall, (33) is attached to the outer surface side. The seam is affixed at (52) to maintain airtightness. (36) was pasted from above and fastened with (34).
After securing a certain air permeability, paste (35). The inner surface side was fastened with a tacker nail so that (30) was not loosened by sticking it with a heel. The rice husks were fixed at a predetermined interval so as not to protrude from above (31).

Thus, the chaff insulation method supports the entire weight, so that the width of the insulation itself can be freely selected, resulting in both an insulation effect and a ventilation effect.

FIG. 4 is a diagram mainly showing the mounting position and mounting method of the rice husk partition plate (48) and details of (48) itself. (b) The figure shows that the length of the rice husk partition plate (17) is the length obtained by dividing the husk insulation by 1 span 400 mm to 500 mm and dividing 1 span by 2 equal parts. The width was a width opened by 15 mm from both ends of the outer wall. The opening holes were 30 mm to 40 mm in diameter, and the number of openings was determined according to the width of the partition plate. This partition plate halves the weight of the rice husk and prevents its natural settlement. Moreover, the opening hole eliminated the air layer directly under the partition plate so that the rice husk could be filled without a sufficient gap.

Thus, the rice husk insulation method brought about both an insulation effect and a ventilation effect.

10. Foundation
11. Daiki
12. Base drainer
13. Pillar
14. Basement
17. Rice husk
18. Digits
30. Moisture-proof breathable sheet
31. Torso edge
32. PB air quality
33. Water resistant plywood
34. Venting edge
35. Exterior plate
36. Moisture-proof breathable sheet
46. Streaks
47. Pillar
48. Rice husk divider
50. Rice husk blower
51. Rice husk partition hole
52. Airtight tape

Claims (4)

A heat insulating house having a heat insulating structure around an outer wall of a wooden house, the heat insulating structure including a heat insulating space portion formed by a plate frame body and a moisture-proof sheet inside the outer wall, and the heat insulating space in the heat insulating space portion. A rice husk wall insulation method for wooden houses, characterized in that a rice husk partition plate is provided in the middle, and the rice husk is blown into a wall body space with an inner wall width of 100 mm to 300 mm. Insulation of rice husks fills the outer wall without any gaps and secures a thickness of 100mm to 300mm by stacking the pillars and studs on the outside of the external pillars and studs of 100mm to 150mm on the wooden house, and the outer side is 4mm to 12mm. The water-resistant plywood is nailed to the pillars at intervals of 300 mm to 500 mm, the moisture-proof sheet is pasted on the outer surface side, and the translucent heat- and moisture-proof sheet is stuck on the inner surface side at intervals of 800 mm to 1000 mm. The wooden house according to claim 1, characterized in that the connecting and stacking width is set to 100 mm to 200 mm, the interval between the pressing barrel edges is set to 100 mm to 400 mm at the trunk edge from above, and the outer peripheral foundation rising width is set to the same width as the outer wall width. Rice husk wall insulation method. In the rice husk subsidence prevention plate, when the rice husk is blown and filled with wind power, as a method of preventing subsidence due to the air layer or its own weight, a hole having a diameter of 20 mm to 40 mm is formed in the plywood at a height of 1 to 2 m above the floor of the wall body. The husk wall heat insulation of a wooden house according to claim 1 or 2, wherein 10 pieces are opened evenly and attached on the floor of the wall body attached to both sides of the pillar and the stud so as to have a step of 50 mm to 200 mm. Construction method. The heat insulation frame of the outer wall has a thickness width for filling a plywood on the outer side of the heat insulating material, sticking a moisture-proof sheet on the surface, and filling rice husk, and is translucent on the inner side of the heat insulating wall The heat insulation moisture-proof sheet | seat of the wooden house in any one of Claims 1-3 characterized by sticking the heat retention moisture prevention sheet | seat, and comprising a plywood, a rice husk, and a heat insulation moisture prevention sheet | seat.

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