Measurement of granule coverage on bituminous roofing surfaces

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AuthorSearch for:
TypeArticle
Journal titleJournal of Testing and Evaluation
ISSN0090-3973
Volume14
Issue3
Pages163167; # of pages: 5
SubjectRoofing; bituminous roofings; gravel; stone; slate (rock); cinders; bitumen exposure, bituminous surface; granular protection; granule loss; image analyzer; linear traverse; photometers; roofing; Roofs; Roofs; Couvertures; couverture bitumineuse; gravier; pierre (materiau); ardoise (roche); scorie
AbstractMethods were developed to measure the exposed area of bitumen on a granule-covered roofing surface. They included traverse microscopical examination, image analysis technique, and photometric measurements . Three specially prepared samples were tested for granule coverage. One of the samples was further tested for the exposed area of bitumen after progressively removing granules from its surface. The study showed that the exposure of bitumen could be related to the loss of granules.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1380
NRC number25957
354
NPARC number20375643
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Record identifier2cf97f7b-4d73-41fd-a514-990836c2073c
Record created2012-07-23
Record modified2016-05-09
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