GAF announces CREST roof energy calculator - Energy Manager
GAF Certifications - Divided Sky Roofing & Solar
Amerhart | GAF Timberline HDZ Shingles
GitHub - CatalystApps/StarlingGAFPlayer: Starling GAF Player is an ActionScript 3 library that allows developer easily to play back animations in GAF format using Starling framework. GAF is a solution that allows porting