Wood structure roof node structure

Abstract

The utility model discloses a wood structure roof node structure which comprises a purline, a wooden roof boarding fixed on the purline and a roof structure layer fixed above the wooden roof boarding, the roof structure layer comprises a heat preservation layer, a rigid supporting layer, a bonding layer and Chinese-style tiles which are sequentially arranged from bottom to top, the heat preservation layer is aerogel felt I, and the rigid supporting layer is made of aerogel felt II. The purline is coated with an aerogel felt II; according to the wood structure roof node structure, the aerogel felt I is arranged in a traditional wood roof structure, the aerogel felt II is arranged on the purline in a wrapping mode, the excellent heat insulation performance of the aerogel felt is fully utilized, the heat bridge effect of the lap joint between the roof and the purline and the heat bridge effect of the lap joint between the purline and the lower wall can be effectively reduced, and the heat insulation performance of the wood structure roof node structure is improved. Therefore, the heat loss is obviously reduced, the indoor environment quality is favorably improved, the energy efficiency of a building is favorably improved, and the energy consumption is reduced; in addition, the aerogel felt has excellent performance of high temperature resistance, water resistance, non-combustibility, high use durability and the like, and the use durability of the whole structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building energy conservation, and in particular relates to a timber structure roof node structure. Background Art

[0002] Against the backdrop of global environmental deterioration and increasing pressure from the energy crisis, low-energy wood-structured buildings have broad development prospects. The traditional wooden roofing layer of residential buildings is usually mainly composed of small green tiles, waterproof layers, and wooden lookout boards, among which the wooden lookout boards are fixed on the roof purlins. Due to the differences in the heat transfer coefficients of the various materials, it is easy to cause a thermal bridge effect, resulting in heat loss, which in turn causes potential damage such as energy waste, mold growth, indoor temperature fluctuations, and corrosion of building structures. In the related art, the thermal bridge problem is alleviated to a certain extent by setting polystyrene boards or rock wool and other materials in the roof structure layer to form an insulation layer. However, due to the unstable long-term durability of polystyrene boards and the easy moisture absorption, deformation, and powdering of rock wool products, the insulation layer is easily invalidated, and the overall durability is low. At the same time, the prior art usually only considers the improvement of the roof insulation effect, but does not consider the insulation of the purlin part, which is still easy to cause a thermal bridge effect. Therefore, it is necessary to provide a new timber roof node structure, which is expected to effectively reduce the occurrence of thermal bridge effect, improve the energy efficiency of buildings, reduce energy consumption; at the same time, it can improve the durability of the overall structure. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a timber roof node structure, which can effectively reduce the occurrence of thermal bridge effect, improve the energy efficiency of the building, and reduce energy consumption; at the same time, it can improve the durability of the overall structure.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wooden structure roof node structure, including purlins, wooden lookout boards fixed to the purlins and a roof structure layer fixed above the wooden lookout boards, the roof structure layer including an insulation layer, a rigid support layer, an adhesive layer and small green tiles arranged in sequence from bottom to top, the insulation layer is aerogel felt I, and the purlins are coated with aerogel felt II.

[0005] Furthermore, the rigid support layer includes a wooden keel and a plywood fixed on the wooden keel, the aerogel felt I is fixed below the wooden keel, and the adhesive layer is laid on the plywood.

[0006] Furthermore, a waterproof roll is provided between the adhesive layer and the small green tiles.

[0007] Furthermore, the bonding layer is cement mortar.

[0008] Furthermore, the aerogel felt I is composed of two layers that are laid alternately.

[0009] Furthermore, the plywood is bamboo plywood.

[0010] Furthermore, the aerogel felt I is fixedly connected to the wooden keel through air nails.

[0011] Furthermore, the aerogel felt I and aerogel felt II are both nano aerogel felts.

[0012] Beneficial effects of the utility model:

[0013] In the timber structure roof node structure provided in the utility model, by arranging aerogel felt I in the traditional timber roof structure and coating aerogel felt II on the purlin, the excellent thermal insulation performance of aerogel felt is fully utilized, and the thermal bridge effect at the overlapped parts between the roof and the purlin, and between the purlin and the lower wall can be effectively reduced, thereby significantly reducing the loss of heat, being beneficial to improving the indoor environmental quality, and being beneficial to improving the energy efficiency of the building and reducing energy consumption; in addition, the aerogel felt has the superior properties of high temperature resistance, waterproofness, non-flammability, high durability in use, etc., which is beneficial to improving the durability of the overall structure in use.

[0014] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model

[0016] Figure numerals: 1-purlin; 101-aerogel felt II; 2-wooden fascia; 3-roof structure layer; 301-insulation layer; 302-rigid support layer; 302a-wooden keel; 302b-plywood; 303-adhesive layer; 304-small green tile; 4-wall. DETAILED DESCRIPTION

[0017] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0018] See also Figure 1A timber structure roof node structure includes a purlin 1, a timber fascia 2 fixed to the purlin 1, and a roof structure layer 3 fixed above the timber fascia 2, wherein the roof structure layer 3 includes an insulation layer 301, a rigid support layer 302, an adhesive layer 303, and small green tiles 304 arranged in sequence from bottom to top, wherein the insulation layer 301 is aerogel felt I, and the purlin 1 is coated with aerogel felt II 101; here, the timber fascia 2 can be fixed to the purlin by bolts 1, the purlin 1 can be fixed to the top of the lower wall 4, the roof structure layer 3 can be fixed to the wooden lookout board as a whole by bolts, of course, in other wooden roof structures, rafters can also be set on the purlin 1, the wooden lookout board 2 can be fixed on the rafters, the small green tiles 304 can be reinforced and connected with stainless steel screws and an adhesive layer 303, and the adhesive layer 303 can be made of cement mortar. These fixing and installation methods are conventional wooden roof fixing methods and will not be repeated here;

[0019] In the above-mentioned timber structure roof node structure, by setting aerogel felt I in the traditional timber roof structure and coating aerogel felt II 101 on the purlin 1, the excellent thermal insulation and heat preservation performance of the aerogel felt is fully utilized, which can effectively reduce the thermal bridge effect at the overlap between the roof and the purlin 1, and the purlin 1 and the lower wall 4, thereby significantly reducing the heat loss, which is beneficial to improving the indoor environmental quality, improving the energy efficiency of the building and reducing energy consumption; in addition, the aerogel felt has the superior properties of high temperature resistance, waterproof and non-flammable, high durability, etc., which is beneficial to improve the durability of the overall structure; of course, the small green tile 304 used in the present application as the surface layer can effectively prevent rain and wind, and at the same time has good air permeability, which is beneficial to maintaining the air circulation in the room, and can also effectively reduce humidity and mold growth; in addition, the small green tile 304 can also ensure the decoration requirements of the roof.

[0020] In this embodiment, the rigid support layer 302 includes a wooden keel 302a and a plywood 302b fixed on the wooden keel 302a, the aerogel felt I is fixed below the wooden keel 302a, and the adhesive layer 303 is laid on the plywood 302b; here, the wooden keel 302a and the plywood 302b can be fixed to each other by screws; in this structural design, the rigid support layer 302 formed by the wooden keel 302a and the plywood 302b can ensure the stable installation of the aerogel felt I and the adhesive layer 303, the plywood has high hardness and toughness, high bending strength, good durability, and the plywood is relatively stable to environmental changes and changes in moisture and dryness, which is beneficial to improving the roof structure, the overall structure is reliable, and it is also beneficial to the lightweight design of the roof.

[0021] In this embodiment, a waterproof roll is arranged between the adhesive layer 303 and the small green tiles 304. The waterproof roll can be laid on the adhesive layer 303. The small green tiles 304 can be reinforced and connected to the adhesive layer 303 by stainless steel screws. The provision of the waterproof roll is beneficial to enhancing the waterproof effect of the roof and reducing rainwater leakage on the roof. The waterproof roll is easy to install.

[0022] In this embodiment, the bonding layer 303 is cement mortar, and the cement mortar here is preferably anti-cracking cement mortar; using cement mortar as the bonding layer 303 is conducive to reducing costs, and at the same time, cement mortar is conducive to ensuring the stable installation of the small green tiles 304.

[0023] In this embodiment, the aerogel felt I is composed of two layers that are laid flat in an alternating manner. The alternating manner can improve the toughness and strength of the aerogel felt layer, and is conducive to further improving the thermal insulation, fireproofing and waterproofing effects.

[0024] In this embodiment, the plywood 302b is bamboo plywood, which is a building material that uses bamboo as the main structure and filling material and is formed into blanks under high pressure. Bamboo plywood has high hardness, excellent bending and compression resistance, and since bamboo forests are easy to cultivate, the cost is relatively low, which is conducive to reducing costs.

[0025] In this embodiment, the aerogel felt I is fixedly connected to the wooden keel 302a by air nails. The air nail connection is simple and reliable.

[0026] In this embodiment, the aerogel felt I and aerogel felt II 101 are both nano aerogel felts; they are made of nano-scale aerogel particles, have extremely low thermal conductivity and excellent thermal insulation performance, have better thermal insulation effects, and are beneficial to further reduce the thermal bridge effect at the joints of the roof and purlins or walls.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A timber structure roof node structure, characterized in that: The invention comprises a purlin (1), a wooden fascia (2) fixed to the purlin (1), and a roof structure layer (3) fixed above the wooden fascia (2); the roof structure layer (3) comprises a thermal insulation layer (301), a rigid support layer (302), an adhesive layer (303), and small green tiles (304) arranged in sequence from bottom to top; the thermal insulation layer (301) is aerogel felt I, and the purlin (1) is coated with aerogel felt II (101).

2. The timber structure roof node structure according to claim 1, characterized in that: The rigid support layer (302) includes a wooden keel (302a) and a plywood (302b) fixed on the wooden keel (302a), the aerogel felt I is fixed below the wooden keel (302a), and the adhesive layer (303) is laid on the plywood (302b).

3. The timber structure roof node structure according to claim 2, characterized in that: A waterproof roll is provided between the adhesive layer (303) and the small green tile (304).

4. The timber structure roof node structure according to claim 3, characterized in that: The bonding layer (303) is cement mortar.

5. The timber structure roof node structure according to claim 2, characterized in that: The aerogel felt I is composed of two layers which are laid alternately.

6. The timber structure roof node structure according to claim 2, characterized in that: The plywood (302b) is a bamboo plywood.

7. The timber structure roof node structure according to claim 2, characterized in that: The aerogel felt I is fixedly connected to the wooden keel (302a) by air nails.

8. The timber structure roof node structure according to claim 1, characterized in that: The aerogel felt I and aerogel felt II (101) are both nano aerogel felts.

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