... radiation that can penetrate through sheet iron, concrete, wood and other common heat insulation material. Specification1 x 50m each ... dust free, easy to install;3.Heat reflection, heat insulation, sound insulation, anti-radiation, anti-vibration, and shielding;4.Moisture ... , energy saving5.Summer: moisture barrier, sun-proof, heat insulation, saving energy consumed by cool air conditioning ;6.Winter: ...