... 2, Roll size:1.2m*30m / 40m 3, Feture: Light,heat insulant Name: aluminium bubble foil insulation Structure:Alu Foil+Bubble ... with no special clothing or breathing Equipment Application: 1 Building Thermal Insulation Material(1),Roof,Underlay,Under Concrete & floor Insulation; (2 ... ;(2),Shells of air conditioner and water heater. bubble foil heat and thermal insulation material