Abstract: An under roof peel-and-stick tile underlayment, having a core or substrate having an upper and lower surface. On the lower surface of the substrate, an adhesive compound is layered and then covered with a release liner. On the selvage edge of the upper surface of the substrate, an adhesive coating is layered and then covered with a top release liner. After the underlayment is adhered to a roof surface, ceramic tiles, such as Spanish-style tiles are adhered on the upper surface.

Abstract: A process for making a roofing ply roll or sheet product which comprises pretreating a fiber glass mat with water to provide greater than 2 and less than 10 wt. % water therein, and impregnating said moisturized mat with molten asphalt, the amount of asphalt retained in said mat being directly related to the amount of water present in the pretreated mat. An ASTM D 2178 Type VI roofing ply sheet comprising a fiber glass mat impregnated with asphalt and having a tensile strength of at least 60 lbf/in CMD and a flexibility of about 0.2 or less in inch/lb stiffness modulus MD.