GAF and CertainTeed combine for a huge piece of the roofing shingle market. This comparison hits all the important factors in deciding – Quality, cost, styles, pros and cons of each option, warranties and more. Our guide also addresses the return on investment and explains when either GAF or CertainTeed shingles are a better choice for a homeowner.
Let’s put the comparison into perspective right from the start:
CertainTeed, by every measure, is the premier manufacturer of exterior building materials and a winner of the Professional Remodelers Best in Class award.

While most of its lines are upmarket, CertainTeed has begun making less expensive lines like the Landmark Series to compete with the value-priced asphalt shingle brands.
GAF, the largest manufacturer of residential roofing materials, makes mostly good-quality shingles with a few premium lines like Camelot II Shingles that are exceptional.

CertainTeed did not appear worried about the cost a decade ago, and it still dominates the “best” category of roofing shingles, though competition is certainly increasing.
Most GAF shingles are cost-conscious products that compete with Owens-Corning, IKO, Tamko, Atlas, Malarkey and similar brands for “basic and better” ranges — niches it ranks first in.
- CertainTeed: Mainly high-end, high-cost products with some affordable lines.
- GAF: Mainly affordable shingle lines with some high-end products.
Here are some important qualitative and quantitative details to consider within the larger scope of CertainTeed vs. GAF shingles debate:

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