... and weather fastness, etc.2. The sandwich panel has excellent insulating performance: heat insulation, sound insulation, waterproof performance, etc.3. It ... density8-20kg/m3Conventional colorOcean blue, tephrosiousCharacterLight in weight, heat insulation, water resistant, green and environmentalUsevarious roofs and walls ... Shandong, China (Mainland) Zip: 256510 EPS Foam Boards Roofing Sandwich panels