State Roofing Company installs another GAF Roof System with a Silver Enhanced Pledge Warranty. This HAND NAILED roof system consists of the GAF Timberline HD Weathered Wood shingles, Feltbuster underlayment, Pro-Start starter strip, and Stormguard in valleys. The old roof system was damaged from the recent hail storm in May. It was paid for by the Homeowners Insurance Carrier.