Exterior thermal-insulating composite layer for external wall and external wall exterior insulation system using same

Abstract

The invention discloses an external heat-insulating composite layer for external walls and the external insulation system of external walls. The mineral cotton boards of composite layer is bonded on the external wall through the binding mortar, the rivet components for reinforcing inserts the external walls through the mineral cotton boards, the outside of mineral cotton boards is equipped with glass fiber grid fabric, and the decorative layer is installed on the outside of glass fiber grid fabric. Mineral cotton boards could be rock cotton board, silicate cotton board or glass cotton board. The external insulation system of external walls is the main body of the building out walls, the edgings of windows and doors use mineral cotton board heat-insulating composite layer and the other parts use the prior heat-insulating composite layer. The invention uses the mineral cotton boards belonging to inorganic materials as the main structure of external heat-insulating layer, so the external heat-insulating layer has many advantages of not combustion, stable thermal resistance properties, not contraction and '' breathing '', it overcomes the defects of organic foaming materials effectively, in addition it can also reduce the noise pollution caused by traffic significantly and the wide use of it can improve the urban living environment effectively.

Description

1. Technical Field [0001] The invention relates to a structure of an external thermal insulation composite layer of a building's external wall, and also relates to an external wall external thermal insulation system using the external thermal insulation composite layer of the external wall. 2. Background technology [0002] Engineering experience at home and abroad has proved that the external wall thermal insulation technology system has obvious advantages in building energy saving and indoor environment comfort. It is the main form of new buildings and existing building energy-saving renovation. This technology is useful for a large number of new buildings and Energy-saving renovation of existing buildings has good application prospects. [0003] At present, the external wall external insulation systems used at home and abroad include expanded polystyrene board systems, polystyrene particle rubber powder external insulation systems, on-site spraying rigid foam polyurethane exte...

AI Technical Summary

Problems solved by technology

These systems all use organic foam insulation materials as the heat insulation material of the whole system. Various gas foaming agents are used in the production of organic foam materials, and these foaming agents will diffuse out of the cells, causing The thermal resistance of the material decreases (experiments abroad have proved that the thermal resistance of some organic foam insulation materials has decreased by 30% within 3 months after production), which reduces the energy-saving effect of the entire external thermal insulation system, failing to meet the design and Building energy-saving requirements; in addition, the combustion performance of these foam insulation materials is not good, and the best products can only reach the national fire protection class B 1 In order to reduce costs, some developers use foam insulation materials with low price, poor combustion performance, and even flammable grades, which bring great fire hazards to buildings, especially high-rise buildings; , all these organic foam insulation materials have the problem of size shrinkage after a period of use, which will cause cracks on the external insulation wall, resulting in the intrusion of rainwater, causing the failure of the entire insulation engineering system

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