We are offering farming insulation. Aerolam super wf consist one layer of fire retardant air bubble film laminated with one side woven fabric laminated aluminium foil and another side pure aluminum foil. roll size (w x l) 1.2m x 40m bubble size 4mm x 10 mm total thickness (mm) 4.5 to 5 mm reflection ratio 95% thermal resistance emissivity 0.04-0.05 temperature range -122 ℉ to 230 ℉(-50°c ~ 110 °c).