一、工程概况某住宅楼工程建筑面积40 593.61m2。该工程外墙保温采用30 mm厚硬泡聚氨酯喷涂保温层,外墙面积为64 000 m2,外墙弹性涂料及面砖面层。聚氨酯保温系统是一种综合性能良好的新型节能系统。近年来,聚氨酯依据其良好的保温隔热性能广泛应用于屋面及外墙 First, the project profile A residential building construction area of ​​40 593.61m2. The project wall insulation with 30 mm thick foam polyurethane spray insulation layer, the outer wall area of ​​64 000 m2, the outer wall of flexible coating and tile surface. Polyurethane insulation system is a new energy-saving system with good overall performance. In recent years, polyurethane is widely used in roofing and exterior walls based on its good thermal insulation properties