Moisture content in protected membrane roof insulations : effect of design features

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AuthorSearch for:
TypeArticle
ISSN0066-0558
Pages3650; # of pages: 15
SubjectRoofing; moisture content; roofs; thermal insulation; sealing; roofing; thermal insulation; membranes; moisture content; sealing; slotting; water; insulation cellular materials; slope; flashing; drying; Moisture performance
AbstractIn protected membrane roofs, the thermal insulation is placed above the main waterproof membrane where it is exposed to precipitation. The severity of the wetting problem can be reduced by protective measures. Fibrous and closed cell plastic insulations, ranging from 150 to 610 mm square and 51 mm thick, were placed on experimental roofs. They were weighed periodically over periods of up to five years. The results indicate that moisture gains are reduced by increasing deck slope.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-P-687
NRC number15382
2806
NPARC number20374915
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Record identifier60629996-9fe3-4369-b278-5740cd40536d
Record created2012-07-23
Record modified2016-05-09
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