Passive house wall bushing waterproof air tightness structure construction method

Abstract

The invention discloses a passive house wall bushing waterproof air tightness structure construction method, which comprises steps of: preservation of a wall bushing opening, mounting of a large bushing with an annular water stop ring, treatment of an interface of the preserved opening, mounting of a small bushing, foaming sealing filling of an annular region, mounting of the wall bushing, foaming sealing filling of a small annular region, waterproof and crack-proof treatment at the end part of the large bushing, water resistance of a first-layer insulation board and a structure wall body interface, mounting of the first-layer insulation board, staggered mounting of a second-layer insulation board, water resistance (horizontal) at the end part of the small bushing, water resistance (vertical) at the end part of the small bushing, water resistance of the wall bushing, construction of an insulation protection layer, and detection and verification of performance of the wall bushing. Measures of double-bushing protection, double-layer annular foaming sealing filling isolation, double-layer sealing treatment, double-layer staggered insulation energy conservation, four waterproof treatment and two crack-proof treatment are adopted, and integrated function requirements of passive building wall bushing protection, insulation energy conservation, air tightness and water resistance can be realized.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for the waterproof and airtight structure of passive house through-wall pipes. Passive building through-wall pipeline waterproof technology, air tightness technology, thermal insulation and energy-saving comprehensive treatment and construction technology. Background technique [0002] From low-energy buildings to passive low-energy buildings, zero-energy buildings, and productive buildings is an inevitable requirement for the development of building energy-saving technologies. Passive low-energy buildings improve the thermal insulation performance and air tightness of the building envelope through various energy-saving structures and key construction technical measures, and reduce the energy consumption demand for building cooling and heating. The sealing and airtightness requirements of door and window openings in building walls and pipe wal...

AI Technical Summary

Problems solved by technology

The traditional method of simply burying the casing will form a thermal bridge channel and an airtight channel between the wall and the wall pipe, which seriously affects the thermal insulation, energy saving and airtightness of the enclosure structure

The field test further shows that without professional thermal insulation and energy-saving structural treatment and airtight detailed structural treatment, the airtightness test of the house cannot reach the airtightness of European passive housesn 50 ≤ 0.6 / h requirement

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