Roof doghouse opening SBS waterproof closing joint structure and construction method

Abstract

The invention discloses a roof doghouse opening SBS waterproof closing joint structure and a construction method. The roof doghouse opening SBS waterproof closing joint structure comprises a doghouse wall; the ventilation pipe is arranged on the doghouse hole of the wall body in a penetrating manner, a gap is formed between the ventilation pipe and the doghouse hole, and the gap is filled with a rock wool layer; the metal edge folding piece comprises an upper edge folding section, a middle inclined section and a lower edge folding section which are integrally connected in sequence, the upper edge folding section is fixedly lapped on the outer wall of the doghouse wall body, and the lower edge folding section is lapped on the outer pipe wall of the ventilation pipe; and the SBS waterproof coiled material layer is laid on the metal edge folding piece and matched with the metal edge folding piece in shape, and a liquid waterproof coiled material layer is painted at the joint of the lower side edge of the SBS waterproof coiled material layer and the ventilation pipe. The node is good in waterproof effect, the rock wool layer can reduce the influence of vibration generated when the ventilation pipe works on the closing-up node to the minimum, and meanwhile it is guaranteed that heat preservation of the wall of the doghouse is continuous and free of breakpoints; due to the middle inclined section of the metal edge folding piece, the phenomenon that hollowing is prone to occurring at the transfer position due to the fact that the SBS waterproof roll layer is too hard is avoided.

Description

technical field [0001] The invention relates to the technical field of building waterproofing, in particular to a structure and a construction method for an SBS waterproof closing node structure of a roof dog house opening. Background technique [0002] With the rapid development of the domestic economy and the continuous improvement of people's requirements for the quality of life, various large-scale public buildings have been erected in cities. However, public buildings such as comprehensive shopping centers, large theaters, and comprehensive exhibition halls often place HVAC equipment (such as fire exhaust fans, central air conditioners, fresh air fans, etc.) on the roof. Therefore, adding a dog house on the roof solves the problem. The waterproof problem caused by the ventilation duct passing through the roof. [0003] Although the construction of the roof dog house solves the waterproof problem caused by the ventilation ducts out of the roof, the gap between the venti...

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Problems solved by technology

[0003] Although building a dog house on the roof solves the problem of waterproofing caused by the ventilation ducts on the roof, the gap between the ventilation duct and the opening of the dog house on the roof becomes the weak point of the roof waterproofing, and often there will be leakage problems at this node

When selecting SBS (modified asphalt waterproofing membrane) as the building roof waterproofing membrane, there are the following problems in the junction of the existing roof doghouse hole and the ventilation pipe: (1) the venti

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