Analysis on the Crack Construction and Control System of External Insulation in Cold Region

Abstract

For the external wall insulation system, the crack problem is the common quality defects. The cracks and the hollowing wall will not only lead to the decrease of the insulation performance, but also lead to the destruction of the bonding layer if there is some water leaking into the cracks, together with the freeze-thaw performance in the cold region, and therefore the wall security is threatened. If the cracks are serious, they can also directly affect the using period of the houses design. This paper aims at the discussion on the crack problems of the external insulation system in cold region.