Features: 1) Combined with glass wool blanket 2) Suitable for roof and wool thermal insulation of warehouses, factories, supermarkets, gyms, and offices Specifications: 1) White or black polypropylene: 38μm 2) Flame-retardant adhesive 3) 3-way fiberglass scrim: 20 x 16 threads 4) Kraft: 25gsm 5) Metallized polyester: 12μm 6) Roll width: 1.2, 1.3m 7) Roll length: 300, 500, 1000, 1500m Outer packing: 300, 500m rolls: kraft cardboard 1000, 2500m jumbo rolls: corrugated board + ply-wooden pallet