Report on Apparatus for Measuring Thermal Resistance of Expanded Polystyrene Insulation

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TypeTechnical Report
Series titleInternal Report, Institute for Research in Construction, National Research Council Canada; Volume 599
Physical description14 p.
AbstractAn apparatus to measure the thermal resistance of expanded polystyrene (EPS) has been developed at IRC as one of two elements of inexpensive instrumentation proposed for the quality assurance programs of the EPS industry. The other is a flexural strength apparatus and has been reported in other document. The apparatus reported here was used for testing 16 pairs of specimens selected from a set of EPS experimental products and the results were compared with those obtained on a Guarded Hot Plate (GHP) apparatus.The difference in each of these comparative tests varied from 0 to the maximum of 0.6 percent, while the mean difference was 0.03%. Yet th enew equipment is approximately ten times less expensive than a GHP apparatus and much easier to operate. It is therefore expected that this new equipment will be used by Canadian manufacturers of EPS (and other thermal insulating boards) as a tool for control of the production quality.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number3255
NPARC number20375272
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Record identifierfc064a8b-f70c-408b-ad7e-3f6c10aea006
Record created2012-07-23
Record modified2016-10-03
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