We are offering foil bubble insulation for pre engineer building. roll size (w x l) 1.2m x 40m bubble size 4mm x 10 mm total thickness (mm) 8 mm reflection ratio 97% thermal resistance emissivity 0.03-0.04 temperature range -122 ℉ to 230 ℉(-50°c ~ 110 °c) minimum order quantity 5000 mtrs (india) container load (export) application roof insulation rafter insulation hvac insulation home insulation (attics & floor) pre engineered builging underroof insulation