Hail resistance of roofing products

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Abstract
A test was developed for evaluating the hail resistance of roofings, in which synthetic hail stones of various sizes were shot at roof assemblies at their free fall terminal velocities. Indentations, granule loss and roofing fracture were observed.

Date
8/1969

Author(s)
Sidney Greenfeld

Page(s)
11

Source
National Bureau of Standards (now NIST)

Keyword(s)
asphalt shingles; hail; storm damage

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