... wall insulation 3 Certificates:SGS,ISO Name:Perforated radiant barrier foilStructure:Alu foil+Woven +Alu foilSize:4'*250'/ ... rollTechinal Parameters:Characteristics1.No odor and toxicity,Environmentally-friendly2.Light,soft,dust free,fire retardant ,easy to install3. ... insulation,anti-radiation,anti-vibration and shielding insulation4.Moisture barrier,sun-proof,water proof,heat insulation,saving energy ...