Language selection

Government of Canada / Gouvernement du Canada

Search

Measurement of granule coverage on bituminous roofing surfaces

From National Research Council Canada

Download
  1. (PDF, 1.3 MiB)
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
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
Abstract
Methods 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
In
  • Journal of Testing and Evaluation 14, no. 3 (May 1986): 163–167.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1380
NRC numberNRCC 25957
NRC-IRC-354
NPARC number20375643
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier2cf97f7b-4d73-41fd-a514-990836c2073c
Record created2012-07-23
Record modified2020-06-06
Date modified: