The ceiling of a tract house is constructed of wooden studs with fiberglass insulation between them. On
Question:
The ceiling of a tract house is constructed of wooden studs with fiberglass insulation between them. On the interior of the ceiling is plaster and on the exterior is a thin layer of sheet metal. A cross section of the ceiling with dimensions is shown below.
(a) The R-factor describes the thermal resistance of insulation and is defined by
Calculate the R-factor for this type of ceiling and compare the value of this R-factor with that for a similar thickness of fiberglass. Why are the two different?
(b) Estimate the rate of heat transfer per square meter through the ceiling if the interior temperature is 22°C and the exterior temperature is – 5°C.
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GIVEN Ceiling of a tract house construction shown below Inside temperature T i 22C Outside temperatu...View the full answer
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Related Book For 
Principles Of Heat Transfer
ISBN: 9781305387102
8th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
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