GreenStuf Building Insulation Blanket (BIB) is designed for the thermal and acoustic insulation of commercial and industrial roofs. It will not break down around roof fixings, helping to reduce wind chatter and screw-shear and will significantly reduce rain-drum on long-run metal roofs. GreenStuf Building Insulation Blanket is fully self-supporting and is supplied in blanket form without the need for a supporting foil face.