Reduction within the walls crack, easy on the interior decoration and wall hanging, fixed objects. Currently, where the use of technology within thermal engineering generally facing surface cracking problems. One main reason is directly exposed to the exterior atmosphere, temperature changes caused by the continuous deformation stress easily lead to a lower intensity level within the insulation layer and cracking. This behavior on the strip of buildings and high-rise building toward something in particular. In doing external thermal insulation inside the wall 2x8 composite eave board to avoid cracking due to external wall temperature and humidity cause deformation, thereby reducing household complaints, while convenient for wall construction and interior decoration. 2.5 improve the situation so damp wall is conducive to stable at room temperature.

When using insulation, vapor permeability due to the high yield of the main structure at the inside of the insulation layer, steady-state theory of condensed moisture transfer analysis, just select the appropriate insulation materials, condensation does not occur in the wall inside, so no need to set up vapor barrier layer. Wall heat transfer from the body into a regenerator, the temperature of the entire wall structure layer is improved, not only to reduce its moisture content, but also do not have to set up an air layer, while walls can absorb and release energy, it is conducive to temperature stable, comfortable indoor timber decking with bridge thermal environment can be obtained, walls do not form dew point difference, the complete elimination of condensation.

Since adopting external insulation measures, a structural layer wall temperature is increased, thereby further improving the thermal insulation properties of the wall. 2.6 improve the waterproof and airtight. External insulation not only saves heating energy costs, and reduce summer air conditioning costs, greatly improve the anti-rain-soaked wall function, aerated concrete, hollow blocks and other concrete walls, masonry mortar joints in brick and not dense paste under the circumstances, the waterproof and airtight poor, and the use of insulation, not only improved the external wall of water caused by moist, but also improve the air-tightness of the wall.