Long-term thermal performance of impermeably faced polyiso foam boards: Field and laboratory observations

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DOIResolve DOI: http://doi.org/10.1061/(ASCE)CR.1943-5495.0000072
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TypeArticle
Journal titleJournal of Cold Regions Engineering
ISSN0887-381X
Volume28
Issue4
Article number4014005
SubjectTesting; Accelerated aging test; Collaborative research activity; Construction professionals; Field performance; Long-term thermal resistance (LTTR); Polyisocyanurate; Thin slicing; Thermal insulation; foam; insulation; performance assessment; plastic
AbstractResearchers at the National Research Council (NRC) Canada-Construction Portfolio in association with the Canadian Polyisocyanurate Council conducted collaborative research activities on the long-term thermal resistance (LTTR) of polyisocyanurate (polyiso) foam insulation with impermeable facers. Polyiso boards are commonly used in building envelope constructions (roofs and walls) in cold regions. The primary objective of the research project was to contribute towards the development of a comprehensive test procedure that could be used to measure the LTTR of polyiso foam insulation products with impermeable facers. As a part of that initiative, a project was initiated in 2001 that consisted of accelerated aging tests using thin slices in parallel with a field investigation in which polyiso boards were installed in a purpose-built test hut at the NRC's Ottawa campus. The polyiso boards installed in the field were monitored for a period of 6 years and subsequently removed from the test hut and tested in the laboratory. This paper presents the field thermal performance of the rigid polyiso foam boards with impermeable facers and critically examines its relationship with the laboratory-measured thin slice aging data. It is hoped that these observations will help construction professionals and researchers to develop a better understanding on the LTTR of impermeably faced polyiso foam insulation boards.
Publication date
PublisherAmerican Society of Civil Engineers
LanguageEnglish
AffiliationNational Research Council Canada; Construction; NRC Institute for Research in Construction
Peer reviewedYes
NPARC number21275539
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Record identifier4b49aad7-aebf-4bad-8486-27a4a4fb10cc
Record created2015-07-14
Record modified2016-05-09
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