A GAF certified roofer in Austin doesn't just throw on shingles—they've been trained by one of the biggest names in roofing to handle tricky Texas weather properly. My neighbor had her whole roof replaced by a guy with that certification, and he actually checked all the flashing and ventilation rather than just nailing stuff down. It's the kind of detail that keeps leaks from popping up during our sudden spring storms. gaf certified roofer austin 11