TAMKO^® Synthetic Underlayment is well-suited for use as an underlayment felt to be applied over the deck prior to the installation of the final roof covering. It also provides secondary protection for shedding water after the installation of the roof system.

Features a flexible, fiberglass reinforced, self-adhering rubberized asphalt sheet membrane with a polymer film on the surface and a removable treated release film on the adhesive side. Well suited for application under metal and tile roofs where prevention of water penetration is required.