Putting shingles to the test

NRCA product testing reveals some concerns with asphalt shingles

NRCA conducted limited physical property testing during 2016 on a number of samples of new (uninstalled) asphalt shingle products. The testing's goal was to determine the samples' compliance with ASTM D3462, "Standard Specification for Asphalt Shingles Made from Glass Felt and Surfaced with Mineral Granules." The results also provide a basis for comparison with previous NRCA testing.

ASTM D3462

ASTM D3462 describes methods for testing and evaluating fiberglass-reinforced asphalt shingles. It addresses materials and manufacture; physical requirements; dimensions, masses and permissible variations; workmanship, finish and appearance; sampling and test methods; inspection; rejection and resubmission; and packaging, marking and shipping.

ASTM D3462's Table 1—Physical Requirements of Asphalt Shingles Made from Glass Felt and Table 2—Masses of Asphalt Shingles Made from Glass Felt provide consensus-based minimum or maximum values for the physical requirements and masses tested.