ASHRAE Standard 90.1 metal building U-factors--part 2: a systems based approach for predicting the thermal performance of single layer fiberglass batt ... An article from: ASHRAE Transactions

This digital document is an article from ASHRAE Transactions, published by American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. on January 1, 2010. The length of the article is 5912 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.

From the author: The parameter [R.sub.insul-sys] is calculated by combining three thermal resistances operating in parallel. Two of these resistances of equal value correspond to the insulation drapes on either side of the purlin and the one in the middle represents the thermal resistance of insulation over the purlin. An analytical expression for the R-value of the parabolic insulation drape is derived. The approach developed in this paper greatly enhances our ability to predict U-factors for metal building roof assemblies.

Citation Details
Title: ASHRAE Standard 90.1 metal building U-factors--part 2: a systems based approach for predicting the thermal performance of single layer fiberglass batt insulation assemblies.(Report)
Author: M.K. Choudhary
Publication:ASHRAE Transactions (Magazine/Journal)
Date: January 1, 2010
Publisher: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
Volume: 116 Issue: 1 Page: 169(8)

Article Type: Report

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