... use XPS as the main material, both sides are covered with the interface agent, surface mortar and alkali-resistant ... meshHeat insulating layer: XPSFoundation plate: XPSInstallation: sticking combined with fasteningMaxium size: 600mm~900mm(width),1200mm~2400mm(longth),20mm ... :1, light weight, high strength, flat surface , with installation advantages and high performance/price ratio;2,very low ...