Under the external wall insulation exterior wall is in most cases the use of benzene board, insulation mortar and other insulation materials, so that the building
install exterior cladding hand book construction methods to achieve thermal insulation purposes. The construction method has convenient construction, less demanding on the building's exterior vertical, fast construction schedule, etc., but there are also some drawbacks.
For example, in the insulation can not be cut off beam, thermal bridges in the wall transverse walls and pillars are formed, resulting in winter indoor temperature and the indoor wall corner (with and without insulation wall insulation board at the angle) temperature difference of about 10 ℃, and indoor temperature can reach more than 15 ℃, but a condition
wood plastic composite products manufacturers suitable for indoor humidity, condensation can form here. The dew condensation water immersion or freezing and thawing can easily result in moldy wall insulation cracking. In addition, within the building insulation, the indoor temperature changes with circadian amplitude season usually small (about 10 ℃), linear distortion and volume changes caused by temperature changes of this building interior walls and floors is not great.
But the role of the external walls of the magnitude of the temperature change outdoor temperature and solar radiation heat caused by the larger. When the outdoor temperature is below room temperature, wall contraction amplitude than the rate in the insulation system fast, when the
Plywood for Plastic Laminate Application outdoor temperature is higher than the room temperature, the external walls of the expanded faster than in the insulation system, when such repeated deformation within the insulation system is always in an unstable wall on the basis of repeated stress in the deformation effect is not only vulnerable to damage facades temperature stress, but also easily lead to internal thermal insulation sys
