1.1 This test method covers the determination of simulated hail damage resistance of roof membranes when applied directly over rigid roof insulation or structural concrete, lightweight
insulating concrete, gypsum, cementitious wood fiber or wood roof decks. The procedures were
developed to determine the potential for puncture or fracture of the roof membrane resulting
from hailstorms when the roof membrane is applied over its tested substrate within an assembly.
1.2 Due to the potential for variable damage resulting from hailstorms in different geographical areas, two separate simulated hail damage tests are used. The tests yield ratings identified as SH (Severe Hail Damage Resistant) and MH (Moderate Hail Damage Resistant).
1.3 The values stated in SI units are to be regarded as standard. The values in parenthesis are presented for information purposes.
1.4 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 to determine the applicability of regulatory limitations prior to use.
Keywordshail; roof membrane; laminated; free fall; drop height; ultraviolet radiation; weathering
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
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