Polyurethane insulation board advantages: high thermal conductivity due to the polyurethane insulation blowing agent is much lower than that of air (good insulation properties), so the insulation performance of rigid polyurethane foam is superior to those materials containing only air, such as: mineral wool, glass fiber and polystyrene. 4) The whole mesh stretched horizontally Bengzhi level, attention will mesh interior curved side inwards, xps extrusion board brand, with the trowel upwards from the middle and lower sides of the mesh smooth, xps extruded plate firmly against. Mesh horizontal lap width of not less than 100, xps extrusion mill, vertical overlap length is not less than 80, xps extrusion board 40mm, lap supplementary layer of polymer mortar mortar vacant place, not so that the net Chambray Gather, hollowing, Alice. Since the inner layer of closed-cell structure. So it has good moisture resistance, in a humid environment can still maintain good thermal insulation properties; suitable for cold storage and other special requirements for building insulation, can also be used for external walls made of brick or stone buildings .