This practice covers how to obtain and use data from in-situ measurement of temperatures and heat fluxes on building envelopes to compute thermal resistance. Thermal resistance is defined in Terminology C168 in terms of steady-state conditions only. This practice provides an estimate of that value for the range of temperatures encountered during the measurement of temperatures and heat flux.
WJE laboratories are accredited by ANAB (ISO/IEC 17025) to perform testing standard ASTM C1155 for Standard Practice for Determining Thermal Resistance of Building Envelope Components from the In-Situ Data.
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KeywordsASTM C1155 - Building Envelopes - Heat Flow - Heat Flux Transducers - Heat Transfer - Probes And Sensors - Temperature - Thermal And Thermodynamic Properties - Thermal Properties - Thermal Resistance - Thermal Resistivity
ICS CODE91.120.10 (Thermal insulation of buildings)
UNSPSC CODE30240000 (Portable Structure Building Components)
ASTM C1155-95(2013), Standard Practice for Determining Thermal Resistance of Building Envelope Components from the In-Situ Data, ASTM International, West Conshohocken, PA, 2013, www.astm.org