Modiflex MF-95-SS-Base Fully Adhered Base Sheet is constructed using an inorganic reinforcing mat of high strength non-woven glass fibers. The product is coated top and bottom with select SBS polymers and premium quality asphalt. Both sides are sand covered to allow application via mopping or an IKO-approved cold process adhesive. Modiflex MF-95-SS-Base is an excellent choice for the “lay flat” base sheet in a BUR system or two-ply modified system.