Outer wall coating system with heat-insulation function

Abstract

The invention provides an outer wall coating system with heat-insulation function. A laminated structure outside a cement wall comprises a leveling layer of heat-insulation waterproof mortar, a prime coat layer of heat-insulation strengthening prime coat, a middle coat layer of heat-insulation strengthening intermediate coat and a finish coat layer of heat-insulation reflective weatherproof finish coat. The coat layer has scientific components and elasticity, and low water absorption rate and capability of improving and avoiding the cracking defect of the traditional coat layer of a building wall and ensuring long-effect integral protection and long duration; when the coat layer is matched with the veneer layers of an outer heat-insulation system of outer building walls and the building wall, the integrated wall heat-insulation effect can be improved, the interface temperature difference can be reduced, and the energy-saving effect can be further realized; the coat layer material provided by the invention has aquosity and environment friendliness, no difference with the traditional coat layer material in the construction progress and the effects of heat-insulation reflection and composite energy saving.

Description

technical field [0001] The invention relates to an exterior wall coating system with thermal insulation function. Background technique [0002] Building energy conservation is a very important task of the national government. As a national mandatory policy, the external thermal insulation system of building exterior walls has been effectively promoted in our country and has achieved remarkable application effects and achievements. Exterior wall coating, as the mainstream decorative finish layer in the external thermal insulation system of building exterior walls, has been fully promoted and popularized in my country in recent years. However, there are also obvious problems in the actual application of the external thermal insulation system of the external wall of the building. The main manifestations are as follows: the long-term adhesion of the finishing layer coating is not well matched, and it is prone to cracking and water seepage. The interface stress between c...

AI Technical Summary

Problems solved by technology

However, there are also obvious problems in the actual application of the external thermal insulation system of the external wall of the building. The main manifestations are as follows: the long-term adhesion of the finish layer coating is not well matched, and it is prone to cracking and water seepage. The interface stress between coatings is too large, that is, the stress difference between the upper and lower layers is too large, and the essence of the source of stress is the environmental change of cold and heat cycle, water absorption and frost heave; although architectural elastic coatings can effectively alleviate and reduce the interface stress phenomenon, but usually Failure due to insufficient thickness, temperature cycle, water absorption and frost heave, and mismatch with the shrinkage coefficient of the base layer