U VALUE MEASUREMENTS FOR WINDOWS AND MOVABLE INSULATIONS FROM HOT BOX TESTS IN TWO COMMERCIAL LABORATORIES.

Author(s) : MCCABE M. E.

Summary

FOUR REPRESENTATIVE DIRECT GAIN FENESTRATION (DGF) COMPONENTS, INCLUDING A MULTIPLE-GLAZED WINDOW AND THREE SINGLE-GLAZED WINDOWS WITH MOVABLE INSULATION SYSTEMS, WERE PURCHASED AND PREPARED FOR TESTING. U VALUES WERE MEASURED FOR EACH TEST COMPONENT AT TWO COMMERCIAL TESTING LABORATORIES USING THE ASTM C236 AND THE AAMA PROCEDURES. COMPARISON OF TEST RESULTS WITH THE DGF MANUFACTURER'S RVALUES SHOWED DISCREPANCIES VARYING BETWEEN 20 AND 117%. FOR THE MOVABLE INSULATIONS TESTED, THE MANUFACTURER'S CLAIMS FOR ENERGY SAI E TEST RESULTS BETWEEN INDIVIDUAL LABORATORIES ARE COMPARED AND DIFFERENCES ARE NOTED WHERE WIND SPEEDS OF 6.7 M/S WERE SIMULATED. THE DIFFERENCES ARE ATTRIBUTED TO THE DIFFERENT DIRECTIONS USED FOR SIMULATING WIND.

Details

  • Original title: U VALUE MEASUREMENTS FOR WINDOWS AND MOVABLE INSULATIONS FROM HOT BOX TESTS IN TWO COMMERCIAL LABORATORIES.
  • Record ID : 1987-0671
  • Languages: English
  • Publication date: 1986
  • Source: Source: ASHRAE Trans.
    vol. 92; n. 1A; 453-473; 12 fig.; 2 tabl.; 8 ref.; discuss.; append.
  • Document available for consultation in the library of the IIR headquarters only.