Materials
Reading Manufacturer Warranties — GAF, Owens Corning, CertainTeed Fine Print
GAF, Owens Corning, and CertainTeed all advertise '50-year' warranties. The fine print is where they differ. Here's the side-by-side.
📰 Northern Arizona Roofing Journal
Honest 2026 roofing guides
Honest 2026 roofing guides
written for Arizonans, by people who do this every day
Insurance changes, monsoon prep, real cost numbers, scam patterns, and code updates — tailored to Prescott, Flagstaff, Sedona, Cottonwood, Camp Verde, and every town in between.
Materials
GAF vs Owens Corning vs CertainTeed — 2026 Shingle Comparison
GAF Timberline HDZ, Owens Corning Duration Storm, and CertainTeed Landmark Pro are the three shingles most NAZ contractors install. Here's how they actually compare in 2026.
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