Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings

Abstract

The invention belongs to the technical field of outer wall outer heat insulating energy-saving reconstruction projects for existing buildings and particularly relates to a base layer processing method in prior to adhering outer wall outer heat insulating system energy-saving reconstruction for existing buildings. The method is characterized by including: researching outer wall finish coat appearance defects; diagnosing outer wall finish coat adhering defects; and specific base layer processing. By the method, outer wall finish coat defects are diagnosed before base layer processing, drawing detection of adhering strength of the finish coat and adhesives is performed, and accordingly problems of hollowing, cracking and dropping due to the outer wall outer heat insulating system and the base layer wall are unprocessed or processed simply are avoided, reliable connection of the outer heat insulating system wit the base layer wall in outer wall outer heat insulating energy-saving reconstruction is achieved, and safety and durability of the outer wall outer heat insulating system are improved.

Description

Technical field [0001] The invention relates to the field of external thermal insulation and energy-saving transformation of existing buildings, in particular to a basic treatment method for energy-saving transformation of an existing building's pasted external thermal insulation system. Background technique [0002] The external wall insulation system has been popularized and applied in existing building energy-saving renovation projects. However, the current grassroots treatment methods for the energy-saving transformation of the external thermal insulation of pasted external walls are relatively simple, usually just cleaning the original finishing layer of the external wall, and repairing and leveling the severely damaged parts such as cracks and shedding. This treatment method inevitably has some defective parts that have not been treated, such as: the original veneer layer of the exterior wall is bonded and the void part, the original veneer layer has low bonding strength du...

AI Technical Summary

Problems solved by technology

However, the current base-level treatment method for energy-saving renovation of pasted external wall insulation is relatively simple. Usually, the original decorative surface layer of the external wall is cleaned, and the cracks, peeling off and other parts with serious surface damage are repaired and leveled.

This treatment method inevitably has some defective parts that have not been treated, such as: the bonded empty part of the original facing layer of the outer wall, and the parts with low bonding strength of the original facing layer due to freezing damage, salting out, erosion and other reasons

In this way, the reliable connection between the external thermal insulation system of the external wall and the base wall cannot be ensured, which has led to problems such as wall cracking, hollowing, and insulation layer peeling off in many existing building external thermal insulation and energy-saving renovation projects shortly after completion. , affecting the popularization and application of energy-saving retrofitting of exterior walls of existing buildings