The use of nuclear moisture density meters to measure moisture in flat roofing insulations

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Pages19; # of pages: 9
SubjectRoofing; moisture content; thermal insulation; flat roofs; Roofs; Moisture performance
AbstractCommercial nuclear soil moisture-density meters were used to measure moisture content of thermal insulation in flat roofs and to map wet areas. Variations in bitumen and gravel thickness and moisture distribution cause uncertainty in these measurements. In field tests the standard error of estimate was 50 kg/m[3] for moisture contents up to 250 kg/m[ 3] and 100 kg/m[3] for moisture contents up to 400 kg/m[3]. Grid surveys often clearly defined wet areas.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number14593
NPARC number20374419
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Record identifier2c0ef324-4922-4a37-a55d-1c5f2335d7c6
Record created2012-07-23
Record modified2016-05-09
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