Fiberglass roofing mat is mainly as substrate for water-proof materials,with the property of excellent water proof ,high strength ,corrosion resistance,high porosity ,easy pitch soak and with a good permeability.The asphalt mat /bitumen mat that is made with fiberglass roofing mat as base material has an excellent weather -proofing,improved seepage resistance,and longer service life ,therefore ,it is an ideal base material for roof asphalt mat/bitumen mat. The fiberglass roofing mat also used as the house heating insulation layer,have very good heat insulating property. The fiberglass roofing mat with reinforcement yarn,have high tensile strength in MD &CMD,anti-tear to pieces,could meet many manufactures' needs, it is a very good construction material. We also can do the black color fiberglass roofing mat with fire retardant. If you have any needs please contact me freely .