Heat-preservation and fireproof external wall board for ultra-low-energy-consumption building and construction method of external wall board

Abstract

The invention discloses a heat-preservation and fireproof external wall board for an ultra-low-energy-consumption building and a construction method of the heat-preservation and fireproof external wall board, and relates to the field of building external wall structures. The construction method comprises the following steps that 1, an aerated concrete board is installed, the aerated concrete wall board serves as a main stress structure to be installed, and all gaps of the aerated concrete board are sealed with adhesives and then sealed with waterproof gas insulation films and waterproof gas-permeable films; 2, a foamed ceramic concrete board is installed indoors; and 3, rock wool is pasted outdoors, and hanging net plastering is carried out to protect the rock wool. According to the invention, the thickness of the outdoor rock wool is reduced by increasing the indoor foamed ceramic insulation board, the safety degree of an external envelope system of the ultra-low-energy-consumption building is increased, the noise can be effectively lowered indoors through the foamed ceramic insulation board, and the construction cost is reduced.

Description

Technical field [0001] The present invention relates to the field of construction of construction facades, in particular, to an ultra-low energy consumption building insulation fire extension wall panel and its construction method. Background technique [0002] Ultra-low energy consumption building insulation fire exterior wall panels are mainly used in personally intensive buildings, fire prevention requirements reach the A-level, including block or wall panels as the force structure, paste rock cotton insulation, forming insulation fire resistant structures ,like figure 1 Indicated. Ultra-low energy consumption building in the cold area of ​​the wall insulation heat transfer coefficient is controlled at 0.2W / m2K, after using the above system, there is the following defects: (1) rock cotton thickness needs to reach 250-350mm, the construction is extremely difficult, rock There are special requirements for cotton and auxiliary materials; (2) rock cotton is too thick, and it is ...

AI Technical Summary

Problems solved by technology

The thermal insulation and heat transfer coefficient of the outer wall of the ultra-low energy building in the cold area is required to be controlled at 0.2W / ㎡K. After adopting the above system, there are the following defects: (1) The thickness of the rock wool needs to reach 250-350mm, which is extremely difficult to construct. There are special requirements for cotton and auxiliary materials; (2) If the rock wool is too thick, it is easy to cause safety problems such as falling off and collapse during construction and future use

It is still difficult to popularize in large area in thin plastering external wall insulation system

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