Thermal insulation covering for external wall

Abstract

The invention discloses an external wall thermal insulation coat, which comprises a light adherent slurry layer adhered on external wall, a thermal insulation plate and a light smear slurry layer. Wherein, said light smear slurry layer has a network cloth in the center; the adhering slit of said thermal insulation plate is covered by self-glue belt. The invention has the advantages of anti-break, better thermal insulation effect, reduced weight of thermal insulation coat caused by light adhering slurry and light smear slurry, high strength, longer service life and the application for variable constructions.

Description

technical field [0001] The invention relates to a building wall, in particular to an outer wall thermal insulation cladding. Background technique [0002] The current exterior wall cladding is mostly attached to the surface of the exterior wall with insulation boards bonded by common mortar, and mesh cloth and common plastering mortar are attached to the outside of the insulation boards, and then covered with veneers to achieve insulation purposes. This structure has the following four problems: 1. Not long after the completion of the exterior wall cladding, due to the thermal expansion and contraction stress caused by the temperature of the insulation board, or the use of poor-quality plastering mortar, the joints on the surface of the cladding It is prone to cracking and is easily intruded by rainwater, thus reducing the insulation effect of the cladding; 2. Since the current insulation board technology mostly uses strip sticking or point sticking, the insulation structure...

AI Technical Summary

Problems solved by technology

[0002] The current exterior wall cladding is mostly attached to the surface of the exterior wall with insulation boards bonded by common mortar, and mesh cloth and common plastering mortar are attached to the outside of the insulation boards, and then covered with veneers to achieve insulation purposes. This structure has the following four problems: 1. Not long after the completion of the exterior wall cladding, due to the thermal expansion and contraction stress caused by the temperature of the insulation board, or the use of poor-quality plastering mortar, the joints on the surface of the cladding It is prone to cracking and is easily intruded by rainwater, thus reducing the insulation effect of the cladding; 2. Since the current insulation board technology mostly uses strip sticking or point sticking, the insulation structure of this cavity method reduces the resistance of the cladding. Wind pressure; at the same time, the surface of the current insulation board uses mortar and mesh cloth as the anti-crack protection layer, and the specific gravity of the selected mortar is often greater than 1.8g / cm 3 , this thermal insulation system increases the load of the thermal insulation cladding itself, so the current thermal insulation board system has hidden dangers of low safety; 3. The thermal conductivity of traditional mortar is generally greater than 0.9W / m.k, and the thermal insulation effect of the system can only be Relying on the insulation board itself, the mortar hardly contributes to the insulation performance of the system, which indirectly reduces the insulation effect of the insulation coating

4. When the height exceeds 30m, veneer bricks, etc. need to adopt the method of strengthening insulation, it is often used to lay galvanized metal mesh to strengthen the insulation coating. The disadvantage of this method is that: the galvanized metal mesh is in the alkaline environment of cement Under the environment, it is easy to be corroded, and the galvanized metal mesh and mortar are gradually detached, and lose the proper strengthening effect

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