The external wall sandwich insulation is to place the insulation material between the inner and outer wall sheets of the same outer wall, and the inner and outer wall sheets can be made of traditional clay bricks and concrete hollow blocks. Therefore, 1) these traditional materials have good waterproof and weather resistance properties, and form effective protection for the inner wall sheets and thermal insulation materials. The selection of thermal insulation materials is not high, and various materials such as polystyrene, glass wool and rock wool are used. Can be used; 2) The construction season and construction conditions are not very high, and will not affect winter construction. In recent years, it has been applied in severe areas such as Heilongjiang, Inner Mongolia, and northern Fujian. Because in non-cold areas, such walls are thicker than traditional walls, and there is a connection between the inner and outer wall panels. The structure is more complicated than traditional walls and the ring beams and structural columns in the seismic zone. The setting still has a thermal bridge. The efficiency of insulation materials is still not fully utilized. Bathtub Tap,3 Holes Bathtub Tap,Brass Separate Bath Faucet,Double Handle Bathtub Tap Jiangmen Faer Sanitary Co.,Ltd , https://www.faersanitarys.com