Perforated radiant barrier consists of alu foil+woven fabric+alu foil Technical data: Weight:150g/m2 Thickness:0.17mm Tensile Strength:MD 756kg/cm2 CD 588kg/m2 Elongation MD 45% CD 38% Bursting Strength: 20kg/cm2 Reflectivity:97% Emissivity:3% Water Vapor Transmission Rate:0.005g/m2/day Fire Spread Index:15(ASTM E-84) Smoke Development Index:20 (ASTM E-84) Fire Rating : NFPA Glass A or UBC Class 1 Function:Closed cell foam insulation can be installed on roof,wall or floor,resist over 80% external heat from buildings,protect wall,and resist thermal shock and sudden cold,etc. Characteristics 1.No odor and toxicity,Environmentally-friendly 2.Light,soft,dust free,fire retardant ,easy to install 3.Heat reflection,heat insulation,sound insulation,anti-radiation,anti-vibration and shielding insulation 4.Moisture barrier,sun-proof,water proof,heat insulation,saving energy consumed by cool air condition 5.Summer:moisture barrier,sun proof,heat insulation,saving energy consumed by cool air condition 6.Winter:heat preservation,central heating saving and remarkable energy-saving effect. Usage: 1.Roof, Ceiling,wall,floor 2.Shells of air conditioner and water heater, 3.Protective coatings of water pipe and ventilating pipe