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Last Updated: Dec 31, 2010
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ASTM D3161-08
Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method)
Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method)
D3161-08
ASTM|D3161-08|en-US
Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method)
Standard
D3161 Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method)>
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Significance and Use
Most asphalt shingles that have demonstrated wind resistance by this test have also performed well in use. Natural wind conditions differ with respect to intensity, duration, and turbulence; these conditions are beyond the means of this test to simulate. The results of this test do not directly correlate to wind speeds experienced in service, and no accommodation is made in this test method for building height, building exposure category, or building importance factor.
Many factors influence the sealing characteristics of shingles in the field; for example, temperature, time, roof slope, contamination by dirt and debris, and fasteners that are misaligned or under-driven and interfere with sealing. It is beyond the scope of this test method to address all of these influences. When testing shingles with sealant, this test method is designed to determine the wind resistance when representative samples of shingles are sealed under defined conditions before testing.
Scope
1.1 This test method covers the procedure for testing the wind resistance of asphalt shingles when applied to a test deck on low slopes in accordance with the manufacturer's instructions at the most susceptible slope for wind damage of 2:12 (17 %) permitted by those instructions. It is used to benchmark the blow-off resistance of sealed and interlocked shingles at a given wind velocity, but may be used to test unsealed or sealed shingles at other wind velocities as is applicable.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.