Bubble Foil Insulation 1AL+Bubble+AL 2No toxicity,moisture barrier,anti-radiation 3Used in roof,wall 4.11 years experience Aluminum consists of one layer of polyethylene bubble that are laminated between two layers of aluminum. Product characteristic:Type: AL201BL×W: 50/40 × 1.2/1.4m (available in custom spec.)Thickness: 3~5mm(single bubble)Bubble diameter: 9mm, 10mm, 20mmWeight: double bubble : ...