Effect of Solar Heat on Moisture Gains in Building Perimeter Insulation Beneath a Paving-Stone Walkway

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TypeArticle
Journal titleBuilding Research Note
ISSN0701-5232
Volume193
Pages7
Subjectthermal insulation; solar heating; moisture content; polystyrene; glass fibres; paving stones; Fibre; isolation thermique; chauffage solaire; degre hygrometrique; polystyrene; fibre de verre; pave de pierre
AbstractThis paper describes the moisture gains of polystyrene and glass fibre insulation installed under a paving-stone walkway. The walkway abuts the south, east and north walls of a building and is therefore exposed to different amounts of solar heat. The polystyrene panels have shown continuous gains in moisture content, with the greatest increases found on the south side of the building. After 13 years in the original position, the paving stones above three polystyrene sheets were raised to allow ventilation between the stones and the insulation. These insulation panels have since demonstrated a continuous decrease in moisture content. The glass fibre panels showed fluctuations in moisture content that are subject to seasonal variations but otherwise show no trend.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierBRN-193
NRC number1611
NPARC number20378212
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Record identifier909e72cf-a7d7-404d-b99f-8948a91f4a1a
Record created2012-07-24
Record modified2016-05-09
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