or 100 square feet. This allows you to make direct price comparisons across different lines of shingles. The three types of asphalt shingles we test are three-tab, architectural/laminated ...
These shingles come with the highest efficiency we've found (23%) and a solid wind rating of 130 mph. The only thing holding GAF Energy back is its lower wattage per square foot (14.3).
or 100 square feet. This allows you to make direct price comparisons across different lines of shingles. The three types of asphalt shingles we test are three-tab, architectural/laminated ...