Ideal for preventing water penetration prior to installation of a metal roof system or mechanically fastened tile roof system, TAMKO’s TW Metal and Tile Underlayment is a flexible, fiberglass-reinforced, self-adhering, rubberized asphalt sheet membrane. Quick and easy to install, it also provides secondary protection against water penetration after installation of a metal roof system. For more information, call 800-641-4691 or visit