Foaming structureIt has a completely closed bubble structure, which can preserve heat and isolate water vapor. 2. Thermal conductivity The thermal conductivity is low, stable, and the heat preservation performance is outstanding. 3. Wet anti-factor It has a high anti-dampness factor, and good anti-water vapor seepage ability, thus the service life is greatly extended. 4. Combustibility The combustibility is GB8624-1997 at level B1difficult to burn. The smoky toxicity is CA-132-1996 at level ZA3, reaching the standard of security department. 5. Tear strength The tear strength is high, and is easy and convenient for construction and maintenance. The shape is fine and beautiful.