External wall insulation and decoration system

Abstract

The invention discloses an exterior wall heat preservation and decoration system, which comprises a heat preservation board body and fasteners. The end face of the heat preservation board body is stepped. Between the liner layer and the thermal insulation layer, between the thermal insulation layer and the substrate layer are connected by an adhesive to form a first bonding layer and a second bonding layer respectively, and the substrate layer and the decorative layer are connected by a primer layer, so The backing board layer is a calcium silicate board, the calcium silicate board is provided with ventilation holes, the base board layer is a cement fiber pressure board, the heat insulation layer is a rock wool board, and the fasteners include T-shaped pieces and L The T-shaped piece, the T-shaped piece and the L-shaped piece are connected by screws. The invention improves the fireproof performance, air permeability and physical and mechanical properties of the insulation board, eliminates the cold and heat bridge phenomenon of the insulation board body, improves the installation stability of the insulation board, and ensures the overall flatness of the wall after installation.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an exterior wall heat preservation and decoration system. Background technique [0002] With the improvement of living standards, people have put forward higher requirements for the thermal insulation and decorative performance of the wall, so the external wall thermal insulation decorative panels have appeared, but the existing external wall thermal insulation decorative panels are poor in fire resistance, and they are easy to cause rapid fire after fire. A large area of ​​the wall is on fire, and the decorative layer in the existing exterior wall thermal insulation decorative panels is generally sprayed on site. The workload on site is large, and the spraying operation is easily affected by the environment. The surface is easy to crack and has poor durability. In addition, the existing thermal insulation and decorative boards for external walls have a thermal bridge phenomeno...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of living standards, people have put forward higher requirements for the thermal insulation and decorative performance of the wall, so the external wall thermal insulation decorative panels have appeared, but the existing external wall thermal insulation decorative panels are poor in fire resistance, and they are easy to cause rapid fire after fire A large area of ​​the wall is on fire, and the decorative layer in the existing exterior wall thermal insulation decorative panels is generally sprayed on site. The workload on site is large, and the spraying operation is easily affected by the environment. The surface is easy to crack and the durability is poor

In addition, the existing exterior wall thermal insulation and decorative panels have a cold and thermal bridge phenomenon, which greatly reduces the thermal insulation performance of the external wall

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