Guyette Roofing installs a new TPO roof system at Alabama's highest point, Mt. Cheaha State Park. This 1950's transmitter building had 4 layers of old roofing (including gravel) and a concrete deck. Once the old roofing was removed and the concrete substrate was properly clean, we installed a 1/8" tapered insulation system. We used GAF 2-part adhesive to adhere the insulation to the concrete deck. Then, we installed GAF 80 mil EverGuard TPO (fully adhered). All seams were heat welded.