The effect of increased insulation on exposed bituminous roofing membranes

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DOIResolve DOI: http://doi.org/10.4224/20378563
AuthorSearch for:
TypeTechnical Report
Series titleBuilding Practice Note; no. 4
ISSN0701-5216
Physical description7 p.
SubjectRoofing; insulating products; thermal resistance; roofing products; stresses; roofs; Roofs; Snow and Ice loads; Couvertures
AbstractConcern has been expressed that increasing the amount of insulation to improve the thermal resistance of conventional roofing systems might adversely affect the performance of the membrane. Lower membrane temperatures caused by increased thermal resistance could induce higher stresses in the membrane, thus increasing the incidence of splitting failures. It is also feared that additional insulation could result in larger stresses in roofing membranes partially covered with snow. This Note evaluates the possible effects of increasing the amount of insulation on roofs.
Publication date
PublisherNational Research Council Canada. Division of Building Research
Translation of
  • L'Effet de l'augmentation isolant thermique sur les membranes de couverture bitumineuses exposées
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-1309
NPARC number20378563
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Record identifier64ca78f7-2ba7-493a-9315-331c15bc9cc2
Record created2012-07-24
Record modified2017-07-06
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