... / 40m 3, Feture: Light,heat insulant Name: aluminium bubble foil insulation Structure:Alu Foil+Bubble+Bubble+Alu Foil Bubble size:2.5-8 mm *10 ... or breathing Equipment Application: 1 Building Thermal Insulation Material(1),Roof,Underlay,Under Concrete & floor Insulation; (2),Attic,Crawl Space,Stud Wall ,Metal ...