Light steel building waterproof parapet and construction method thereof

Abstract

The invention provides a light steel building waterproof parapet and a construction method thereof. A wall frame of a wall body and a truss of a building top roof are formed by light steel keels; thecenter of the wall body is filled with glass heat preservation cotton; a cold-formed thin-wall light steel keel wall body serves as a wall body structure; an OSB plate is used as a structure reinforcing plate and wall surface leveling plate; glass heat preservation cotton is a wall surface heat preservation layer; an extruded sheet is a roof insulation layer; one-way breathing paper is a damp-proof layer; a fiber cement board is a main waterproof layer outside the parapet; a PVC waterproof roll is a main waterproof layer on the roof and inside the parapet wall; the inner side face of an opening, inside the parapet wall, of the water falling hopper is continuously sealed and pasted through a waterproof roll cutting opening in an inward turning mode. According to the method, quick construction is achieved through a full-dry method, the effect of preventing water leakage is good, the water leakage and seepage phenomenon can be eradicated for a long time, and the overall construction costis effectively reduced.

Description

technical field [0001] The invention relates to a light steel keel system in a civil building, in particular to a waterproof parapet of a light steel building and a construction method thereof. Background technique [0002] The light steel keel belongs to the prefabricated structure in civil buildings, but the country currently lacks relevant atlas standards and specifications. Especially the standard of light steel keel system on the flat roof, after many years of design and construction practice, it is found that the prefabricated light steel keel system parapet has the following problems: [0003] 1. Most of the existing light steel keel systems are sloping roofs, and they are rarely used on flat roofs. [0004] 2. The parapet is the key point of anti-seepage and anti-leakage in the building. Due to the slope of the flat roof, the roof is easy to accumulate water, and improper waterproof treatment is very easy to cause water leakage. [0005] 3. Most of the parapet wall...

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Problems solved by technology

[0005] 3. Most of the parapet walls of civil buildings are treated with waterproof mortar, but in light steel keel buildings, the thermal expansion and contraction coefficients of steel and mortar are quite different.

Waterproof mortar is very easy to crack and cause water leakage

In addition, the waterproof mortar is constructed in wet operation, and the light steel keel system is constructed in dry operation, and the construction techniques of the two contradict each other

[0006] 4. If the traditional steel structure color steel plate system (minimum slope not less than 5%) is used for waterproofing, it will not be able to meet the requirements of the flat roof

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