Exterior wall external insulation structure and construction process

Abstract

The invention relates to an exterior wall external thermal insulation structure and a construction process, and mainly relates to the field of exterior wall structures. The exterior wall external thermal insulation structure comprises a plaster layer coated on the outer surface of an exterior wall main body, a bonding layer coated at the side, away from the exterior wall main body, of the plasterlayer, a thermal insulation layer arranged at the side, away from the plaster layer, of the bonding layer and a protective surface layer arranged at the position, away from the bonding layer, of the thermal insulation layer, first glass fiber gridding cloth is embedded in the protective surface layer, the thermal insulation layer comprises a plurality of thermal insulation plates and fireproof isolation belts arranged in gaps between the adjacent thermal insulation plates, and the fireproof isolation belts are wrapped by second glass fiber gridding cloth. The upper edge and the lower edge of the second glass fiber gridding cloth extend into the bonding layer from the gap between the fireproof isolation belts and the thermal insulation plates and then extend away from each other. The fireproof isolation belts can be relatively tightly and stably connected to the exterior wall main body.

Description

technical field [0001] The present application relates to the field of exterior wall structures, in particular to an exterior wall insulation structure and a construction process. Background technique [0002] Insulation boards are building materials used for thermal insulation in buildings, but according to fire protection requirements, the outer wall of the floor slab should be provided with a fire isolation belt, and the fire isolation belt should be set in the gap between adjacent insulation boards, and the height of the residential building is greater than or equal to 60m. There is a horizontal fire isolation zone on each floor; the residential height is greater than or equal to 24m and less than 60m, and there is a horizontal fire isolation zone every two floors; the residential height is less than 24m, and every third floor is equipped with a horizontal fire isolation zone. The width of the horizontal fire isolation belt shall not be less than 300mm, and the thickness...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that after long-term use, since the fire-proof isolation belt is connected to the main body of the external wall through waterproof mortar, the fire-proof isolation belt is easily separated from the main body of the external wall due to the small connection area after long-term use, resulting in gaps. Cause rainwater leakage, etc., the use effect is relatively poor

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