Passive house heat-bridge-free cornice structure

Abstract

The utility model discloses a passive house heat-bridge-free cornice structure, and relates to the field of passive house building products, the passive house heat-bridge-free cornice structure comprises a C-shaped light steel roof truss, the C-shaped light steel roof truss is sequentially provided with a breathable film, a first polyurethane plate, a waterproof layer and tiles in parallel from inside to outside, and the thickness of the first polyurethane plate is larger than that of the tiles; the C-shaped light steel roof truss is sequentially provided with a laminated light steel frame, a gas insulation film, a second polyurethane plate and a ground decoration plate in parallel from outside to inside, the laminated light steel frame is filled with core-separated glass wool or polyurethane foam, and the thickness of the second polyurethane plate is larger than that of the laminated light steel frame. The breathable film, the first polyurethane plate, the waterproof layer and the tiles are sequentially laid above the C-shaped light steel roof truss, the laminated light steel frame, the gas insulation film, the second polyurethane plate and the ground decoration plate are arranged in the C-shaped light steel roof truss in the inward direction, the heat preservation, heat insulation and waterproof effects of the passive house are achieved, the arranged structure is simple, and the actual using effect is better.

Description

Technical Field

[0001] The utility model relates to the field of passive house building products, in particular to a passive house eaves structure without thermal bridges. Background Art

[0002] Passive houses are the culmination of various technical products. By making full use of renewable energy, the total amount of primary energy consumed does not exceed 120 kilowatt-hours / (square meter.year). Such a low energy consumption standard is achieved through high thermal insulation and sound insulation, strong sealing of building exterior walls and renewable energy.

[0003] However, existing passive houses have poor thermal insulation performance, and the exchange of hot and cold air between indoor and outdoor is large, which cannot guarantee the temperature inside the house, and cannot guarantee effective thermal insulation and sealing and heat retention effects, resulting in a poor user experience.

[0004] Therefore, the utility model proposes a passive house thermal bridge-free eaves structure to solve the above problems. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] The utility model aims at the above-mentioned problems in the prior art and provides a passive house thermal bridge-free eaves structure which can be reasonably manufactured and used in order to make up for the deficiencies of the prior art.

[0007] (2) Technical solution

[0008] In order to achieve the above technical objectives, the utility model provides a passive house thermal bridge-free eaves structure, comprising a C-shaped light steel roof frame, wherein a breathable membrane, a first polyurethane board, a waterproof layer and a tile are sequentially and parallelly installed on the C-shaped light steel roof frame from the inside to the outside, and the thickness of the first polyurethane board is greater than the thickness of the tile;

[0009] The C-shaped light steel roof truss is installed with a laminated light steel frame, an air barrier membrane, a second polyurethane board and a ground decorative board in parallel from the outside to the inside. The interior of the laminated light steel frame is filled with off-core glass wool or polyurethane foam, and the thickness of the second polyurethane board is greater than the thickness of the laminated light steel frame.

[0010] Preferably, the breathable membrane has a thickness of 1.5 mm.

[0011] Preferably, the thickness of the first polyurethane plate is 50 mm.

[0012] Preferably, the thickness of the waterproof layer is 1.5 mm.

[0013] Preferably, the thickness of the tile is 15 mm, and the tile is obliquely arranged on the outside of the C-shaped light steel roof truss.

[0014] Preferably, the laminated light steel frame is 89 mm thick, and the left end of the laminated light steel frame is connected to the first polyurethane board.

[0015] Preferably, the thickness of the gas barrier film is 1.5 mm.

[0016] Preferably, the thickness of the second polyurethane plate is 100 mm.

[0017] Preferably, the floor decoration board is laid under the second polyurethane board, and the thickness of the floor decoration board is 10 mm.

[0018] (3) Beneficial effects

[0019] The advantages of the utility model are as follows: the utility model achieves the effects of waterproofing and thermal insulation by laying a breathable membrane, a first polyurethane board, a waterproof layer, and a tile in sequence on top of a C-shaped light steel roof frame, and setting their thicknesses to be different and matching and fitting. At the same time, by setting a laminated light steel frame, a gas-isolating membrane, a second polyurethane board, and a ground decorative board inwardly of the C-shaped light steel roof frame, the effects of thermal insulation, heat insulation, and waterproofing of a passive house are achieved together. The structure is simple but the actual use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 It is the overall structure distribution diagram of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0023] The figures are marked as follows: 1-C-type light steel roof truss, 2-breathable membrane, 3-first polyurethane board, 4-waterproof layer, 5-tile, 6-laminated light steel frame, 7-air-isolating membrane, 8-second polyurethane board, 9-ground decorative board. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example:

[0026] See also Figure 1-2As shown, the passive house thermal bridge-free eaves structure described in the utility model comprises a C-shaped light steel roof truss 1, and the C-shaped light steel roof truss 1 is provided with a breathable membrane 2, a first polyurethane board 3, a waterproof layer 4 and a tile 5 in parallel from the inside to the outside, and the thickness of the first polyurethane board 3 is greater than the thickness of the tile 5; wherein in terms of thickness arrangement, the thickness of the breathable membrane 2 is 1.5 mm, the thickness of the first polyurethane board 3 is 50 mm, the thickness of the waterproof layer 4 is 1.5 mm, the thickness of the tile 5 is 15 mm, and the tile 5 is obliquely arranged on the outside of the C-shaped light steel roof truss 1. In addition, the material between the tile 5 and the C-shaped light steel roof truss 1 is also obliquely arranged. It should be noted that the waterproof layer 4 is a department commonly used for building waterproofing in the prior art.

[0027] The C-shaped light steel roof truss 1 is installed with a laminated light steel frame 6, an air barrier membrane 7, a second polyurethane board 8 and a floor decorative board 9 in parallel from the outside to the inside. The laminated light steel frame 6 is filled with off-core glass wool or polyurethane foam. The thickness of the second polyurethane board 8 is greater than the thickness of the laminated light steel frame 6. The laminated light steel frame 6 is 89 mm thick, and the left end of the laminated light steel frame 6 is connected to the first polyurethane board 3; the thickness of the air barrier membrane 7 is 1.5 mm, the thickness of the second polyurethane board 8 is 100 mm, and the floor decorative board 9 is laid under the second polyurethane board 8. The thickness of the floor decorative board 9 is 10 mm.

[0028] This solution achieves the effects of thermal insulation, sealing, waterproofing and heat resistance by limiting the positional relationship of each structure and setting the thickness of each layer of structure, so that the passive house has the characteristics of high thermal insulation, sound insulation and strong sealing, and achieves good energy-saving and environmental protection functions.

[0029] The above embodiments are preferred implementation modes of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the implementation modes of the present utility model are not limited to the above embodiments. For those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Passive house has no thermal bridge eaves structure, which is characterized by: The invention comprises a C-shaped light steel roof truss (1), wherein a breathable membrane (2), a first polyurethane plate (3), a waterproof layer (4) and a tile (5) are sequentially and parallelly installed on the C-shaped light steel roof truss (1) in a direction from inside to outside, and the thickness of the first polyurethane plate (3) is greater than the thickness of the tile (5); The C-shaped light steel roof truss (1) is provided with a laminated light steel frame (6), an air barrier membrane (7), a second polyurethane board (8) and a floor decorative board (9) in parallel in sequence from the outside to the inside. The laminated light steel frame (6) is filled with off-core glass wool or polyurethane foam. The thickness of the second polyurethane board (8) is greater than the thickness of the laminated light steel frame (6).

2. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The thickness of the breathable membrane (2) is 1.5 mm.

3. The passive house thermal bridge-free eaves structure according to claim 2, characterized in that: The thickness of the first polyurethane plate (3) is 50 mm.

4. The passive house thermal bridge-free eaves structure according to claim 1 or 2, characterized in that: The thickness of the waterproof layer (4) is 1.5 mm.

5. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The thickness of the tile (5) is 15 mm, and the tile (5) is obliquely arranged on the outside of the C-shaped light steel roof truss (1).

6. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The laminated light steel frame (6) is 89 mm thick, and the left end of the laminated light steel frame (6) is connected to the first polyurethane board (3).

7. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The thickness of the air barrier film (7) is 1.5 mm.

8. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The thickness of the second polyurethane plate (8) is 100 mm.

9. The passive house thermal bridge-free eaves structure according to claim 1, characterized in that: The floor decoration board (9) is laid below the second polyurethane board (8), and the thickness of the floor decoration board (9) is 10 mm.

Images