A Study of the Effects of Insulation Gaps on Building Heat Loss
Abstract
The scope of the program included testing of a wall panel designated Type I and a second designated Type II. The Type I panel consisted of 2x4 inch studs spaced 16 inches on center and insulated with R-11 fiberglass insulation. Tests were conducted in a Guarded Hot Box operated in accordance with ASTM C236-66 (Reapproved 1971). Thermal resistance values were determined at mean temperatures of approximately 45 deg F, 75 deg F, and 95 deg F. After these values were determined insulation areas amounting to 5, 10, and 15 percent of that originally installed were cut out from the mid-height of the test metering area and the tests repeated at each condition. The cut outs were to simulate omissions or errors in installation of the insulation. The second wall panel, designated Type II, was constructed to simulate 2x6 inch studs spaced 24 inches on center and insulated with R-19 fiberglass insulation. The test program duplicated that performed on the R-11 insulated wall in order to determine whether the greater thickness gave similar changes in measured heat flow with increasing insulation void areas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1980
- Accession Number
- ADA085222