CN101109194B - Wood structure one-way breathable insulation wall - Google Patents

Abstract

The invention relates to a one-way air-permeable heat-insulating wall of a wooden structure. The wall sequentially includes a fireproof gypsum board, an air-tight PE film, a wooden wall bone column, insulation cotton, a shear plate, and a one-way air-permeable waterproof film from the inside to the outside. , flashing and exterior decoration, the flashing is connected with the waterproof breathable membrane, and there is a cavity between the exterior decoration. The present invention utilizes the characteristics of the wooden structure itself to form a system with strong thermal insulation performance by wooden keels, thermal insulation cotton, PE film, and inner and outer cladding panels. Multi-channel structure waterproof system, and the inner layer is made of PE film, glass fiber cotton, wooden frame structure, waterproof and breathable membrane, forming a system in which indoor water vapor can be discharged to the outside, thus establishing the house's thermal insulation and breathing system in an all-round way to ensure that the house Drying greatly improves the performance of the house. The invention can be widely applied to the enclosure walls of buildings such as wooden structures, steel structures and concrete frame structures.

Description

Wood structure one-way breathable insulation wall

technical field

The invention relates to an enclosure wall of a wooden structure building, a steel structure building and a concrete frame structure building, in particular to a wooden structure one-way air-permeable heat-retaining wall, which belongs to the construction field.

Background technique

In the prior art, the enclosure walls of steel structures and concrete frame structures are mostly made of clay hollow brick walls, which have low waterproof and thermal insulation performance; while the enclosure walls of wood structure buildings are mostly wood structure walls, The design focuses on interior wall decoration and exterior wall waterproofing, but most of them fail to take into account various factors such as heat preservation, ventilation and waterproofing, resulting in low comprehensive performance of the enclosure wall, which affects the occupancy and use of buildings. Therefore, improving the enclosing wall structure of existing buildings and improving their comprehensive performance will have far-reaching significance for technological progress in this field.

Contents of the invention

The object of the present invention is to provide a wood-structured one-way air-permeable thermal insulation wall, aiming to simultaneously improve the waterproof, air-permeable and thermal insulation properties of the wall.

The technical solution of the present invention is a one-way air-permeable thermal insulation wall of wooden structure, which is characterized in that the wall sequentially includes: fireproof gypsum board, air-tight PE film, wooden wall bone column, thermal insulation cotton, shear board 1. A one-way breathable waterproof membrane, flashing and exterior decoration from inside to outside, and the flashing is connected with the one-way breathable waterproof membrane, and a cavity is formed between the flashing, the one-way breathable waterproof membrane and the exterior decoration.

The present invention can also be further realized by the following technical solutions:

In the aforementioned wood-structured unidirectional air-permeable thermal insulation wall, the shear board is an oriented wood chip board or a structural plywood.

Still further, the above-mentioned one-way air-permeable thermal insulation wall of wooden structure, wherein, the outer decoration is PVC or composite fiber or wooden hanging board.

Still further, the above-mentioned one-way air-permeable thermal insulation wall of wooden structure, wherein, the external decoration is cultural stone or cement plaster, which is the wall paint including the inner barbed wire, the cement plaster layer and the surface layer when the cement plaster is applied.

In this way, the present invention utilizes the cavity of the wooden structure itself to form a system jointly by wooden keels, thermal insulation cotton, PE film, and inner and outer cladding panels, just like hollow glass, which has extremely strong thermal insulation performance; its outer layer is composed of outer decoration, flooding, The one-way breathable waterproof membrane and the outer covering panel form a multi-structure waterproof system, which strictly prevents the intrusion of water; while the inner layer is made of PE film, glass fiber cotton, wooden frame structure, and one-way breathable waterproof membrane, forming an indoor water vapor can A system that discharges outwards establishes a breathing system for the house in all directions to ensure that the house is dry and greatly improves the performance of the house.

Description of drawings

Fig. 1 is a kind of wall structure schematic diagram of the present invention;

Fig. 2 is another kind of wall structure schematic diagram of the present invention;

Fig. 3 is a longitudinal sectional view of Fig. 1, and illustrates the waterproof and air-permeable flow of the wall.

In the figure, 1-fireproof gypsum board, 2-PE film, 3-wood wall stud, 4-insulation cotton, 5-shear board, 6-one-way breathable waterproof membrane, 7-flashing, 8-PVC (or Composite fiber or wood) hanging board, 9-barbed wire, 10-cement plastering layer, 11-wall paint.

Detailed ways

The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings. It is only an example and does not constitute any limitation to the protection scope of the present invention. All technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of protection claimed by the present invention.

As shown in Figure 1 and Figure 2, the wall structure of the present invention includes from inside to outside: fireproof gypsum board 1, airtight PE film 2, wooden wall bone column 3, thermal insulation cotton 4, shear board 5, single sheet from inside to outside To breathable waterproof membrane 6, flashing 7 and exterior decoration, wherein exterior decoration can be the hanging board of PVC or composite fiber or wood, also can be cultural stone decoration or cement whitewashing or the like. Fig. 1 is the example that exterior decoration adopts PVC (or composite fiber or wooden) hanging board 8, and exterior decoration among the middle of Fig. 2 is cement painting, specifically comprises the wall paint 11 of inner layer barbed wire 9, cement painting layer 10 and surface layer.

During construction, first set up the roof beam, ground beam and wall keel, and each wooden keel is fixed on the top beam and bottom beam with two 82mm twist nails at an interval of 406mm to form a frame structure; then fill it with standard glass fiber cotton , so that the wooden frames are just filled, neither loose nor compacted, and play the role of heat preservation; then, the airtight PE film is covered with tape on the inner wall of the insulation cotton, and the lower layer covers the upper layer to form a continuous air barrier and Vapor barrier; then use 38mm screws to fix the fireproof gypsum board on the keel, so that it forms a shear system and fire protection system together with the wooden structure frame, and at the same time provide the interior decorative surface layer; and the shear board can use 9.5mm OSB board (orientedstrand board, oriented wood chip board) or 9mm Plywood board (structural plywood, structural plywood), with 150mm intervals on the sides and 300mm intervals in the middle, and fix them on the wooden keel with 63mm twist nails to form a stable frame structure. The shear panel is different from ordinary materials, it belongs to the cladding panel for structure, and it has been boiled for 2 hours in advance, so it can be waterproof.

Furthermore, a one-way breathable waterproof membrane is installed on the outside of the shear plate, which can be covered with 38mm ring nails on the outer wall panel, the upper layer covers the lower layer, and the outside plays a waterproof role, and the inside allows water vapor to pass through and drain to the outside. Keep the structural system dry; then use 38mm ring nails to install flashings on the outside of the one-way breathable waterproof membrane ("inside→outer" one-way ventilation), and the flashings are connected with the waterproof and breathable membrane, and the liquid water is discharged downwards, while Water vapor escapes upwards; finally, according to the needs, use PVC hanging boards, cement plastering, cultural stone decoration and other industry practices to set up exterior wall decorations. During construction, leave a cavity between the exterior decoration and the waterproof and breathable membrane to facilitate drainage and ventilation. exhaust. When using cement to paint as shown in Figure 2, the inner layer of barbed wire 9 can be utilized to form the skeleton of the cavity.

Fig. 3 is a longitudinal sectional view of the wall of the present invention, in which A is the flow direction of internal water seepage, after the internal water seeps out to the cavity between the waterproof breathable membrane and the PVC hanging board, the gaseous water escapes along the _B1 direction, and the liquid state The water flows down along the _B2 direction; the external water blocked by the PVC (or composite fiber or wooden) hanging board flows directly down along the C direction, even if a little infiltrates into the above cavity, it cannot enter the wall under the action of the waterproof and breathable membrane. The outer wall of the body and the insulation layer, they will still drain the wall along the _B1 and _B2 directions in the cavity together with the moisture seeping from the inside of the wall.

Through actual testing, the bearing capacity of the one-way air-permeable thermal insulation wall of the wooden structure of the present invention fully complies with the national standard, its lateral force resistance is: 2.06KN/M, water impermeability: 150-250cm H ₂ O, one-way air permeability: 900 -1100g/m ² /day, fire-resistant limit: 1 hour of incombustible body, thermal insulation coefficient: Ro＝3.126m ² K/W, sound insulation coefficient: Rw＝48dB, structural life not less than 50 years.

In a word, the present invention utilizes the cavity of the wooden structure itself to form a system composed of wooden keels, thermal insulation cotton, PE film, and inner and outer cladding panels. Like hollow glass, it has extremely strong thermal insulation performance; The one-way breathable waterproof membrane and the outer covering panel form a multi-structure waterproof system, which strictly prevents the intrusion of water; while the inner layer is made of PE film, glass fiber cotton, wooden frame structure, and one-way breathable waterproof membrane, forming an indoor water vapor can A system of outward discharge. In this way, the thermal insulation and breathing system of the house is established in an all-round way to ensure that the house is dry and greatly improve the performance of the house.

Since wood is a renewable resource, it not only consumes less energy when used as a building material, but also has better thermal insulation performance than other building materials. In addition, the unique structural design of the present invention makes its performance of waterproof and thermal insulation more effective; in addition, the wooden structure wall The cavity of the wall can be used to wear pipes for heat preservation, and the housing rate of the house is very high, which is incomparable to the clay hollow brick wall. Just because of this, the present invention has very wide application prospect in aspects such as wooden structure building, steel structure building and concrete frame structure building.

Claims (7)

1. Wood-construction one-way ventilating heat preserving wall, it is characterized in that: body of wall from inside to outside comprises fire-resistant gypsum panel, air-locked PE film, wooden wall column, heat-preservation cotton, shear plate, from inside to outside one-way ventilating waterproof film, flashing and outer the decoration successively, described flashing is communicated with the one-way ventilating waterproof film, is with cavity between flashing, one-way ventilating waterproof film and outer the decoration.

2. Wood-construction one-way ventilating heat preserving wall according to claim 1 is characterized in that: described shear plate is an oriented strand board, or structural plywood.

3. Wood-construction one-way ventilating heat preserving wall according to claim 1 and 2 is characterized in that: described outer the decoration is the PVC link plate.

4. Wood-construction one-way ventilating heat preserving wall according to claim 1 and 2 is characterized in that: described outer the decoration is the composite fibre link plate.

5. Wood-construction one-way ventilating heat preserving wall according to claim 1 and 2 is characterized in that: described outer the decoration is wooden link plate.

6. Wood-construction one-way ventilating heat preserving wall according to claim 1 and 2 is characterized in that: described outer the decoration is Art Stone.

7. Wood-construction one-way ventilating heat preserving wall according to claim 1 and 2 is characterized in that: described outer the decoration is that cement whitewashes, and comprises the wall covering on internal layer wire gauze, cement flour brush layer and top layer.

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