MEASURED AND EXPECTED R-VALUES OF 19 BUILDING ENVELOPES.

Author(s) : FLANDERS S. M.

Summary

THE PAPER COMPARES IN SITU MEASUREMENTS OF R-VALUES WITH R-VALUES OBTAINED FROM HANDBOOK CALCULATIONS. EXAMINATION OF SELECTED STUDY CASES INDICATED THAT CONVECTION IS A FREQUENT HEAT TRANSFER MECHANISM IN FIBROUS INSULATION, IN BOTH WALLS AND ATTICS. THERMAL BRIDGES WERE ALSO EVIDENT FROM THE MEASUREMENTS. AIR LEAKAGE AND MOISTURE WERE NOT SIGNIFICANT CAUSES.

Details

  • Original title: MEASURED AND EXPECTED R-VALUES OF 19 BUILDING ENVELOPES.
  • Record ID : 1987-0250
  • Languages: English
  • Publication date: 1985
  • Source: Source: ASHRAE Trans.
    vol. 91; n. 2B; 49-58; 7 fig.; 3 ref.
  • Document available for consultation in the library of the IIR headquarters only.