Assembly passive type building high-airtightness and high-heat-preservation non-cold-and-heat-bridge integrated construction technology

Abstract

The invention discloses an assembly passive type building high-airtightness and high-heat-preservation non-cold-and-heat-bridge integrated construction technology. The assembly passive type building high-airtightness and high-heat-preservation non-cold-and-heat-bridge integrated construction technology comprises the steps that vacuum insulated panels are assembled on the inner side of an outer-hung-board wall room by using an adhesive, and then the outer surfaces of the vacuum insulated panels are coated with waterproof and vapor-proof coating; when outer hung wall boards are prefabricated, pre-buried anti-corrosion and thermal-insulation wood padding blocks are installed at the four edges of a window opening of each wall board in advance according to a certain separation distance, prepressing seal expansion belts are pasted at the circumferences of the side edges of a door and window frame and waterproof and vapor-proof films are pasted towards the periphery of the inner side of the room, then the waterproof and vapor-proof films are placed in the window openings and tightly support the wood padding blocks, the door and window frame is fixed to the wood padding blocks by adoptingbolts, and then waterproof and vapor transmission films are pasted on the outer side of the room of the door and window frame; and water guiding cavities are formed in vertical joints of prefabricatedcomposite outer hung boards, and waterproof sealing of the vertical joints is achieved through PE bars, the coating and weather proofing sealants. According to the assembly passive type building high-airtightness and high-heat-preservation non-cold-and-heat-bridge integrated construction technology, the operability is high, and the airtightness and the non-heat-bridge performance quality are easyto control.

Description

technical field [0001] The invention relates to an integrated construction process of a prefabricated passive building with high air-tightness, high heat preservation and no cold and heat bridges. Background technique [0002] Passive house, also known as passive energy-saving house, is an energy-saving building based on passive design. A building that does not require traditional heating methods and active air conditioning to achieve a comfortable indoor environment in winter and summer. The building does not actively introduce external energy, and relies on design and technology to reduce energy consumption to the greatest extent. A passive house does not require active heating, it basically relies on passively collected heat to keep the house itself at a comfortable temperature. Using the heat energy brought by the sun, human body, home appliances and heat recovery devices, etc., no active heat source is needed. The concept of passive houses is applicable all over the w...

AI Technical Summary

Problems solved by technology

However, there will be conflicts in the realization of the two in the same building, mainly in the following aspects: 1) Passive ultra-low energy buildings require high air tightness, while the enclosure structure of prefabricated buildings will inevitably have a large number of installation and splicing gaps, and the assembly 2) Under the premise of ensuring structural safety, passive ultra-low energy buildings require high heat insulation and high thermal insulation performance, while prefabricated building envelopes layer will create some thermal bridges

Since there is still no similar case reference in China, these problems need to be solved one by one in practice