ASHRAE Standard 90.1 metal building U-factors-Part 3: equations for double layers of fiberglass batt insulation in roof and wall assemblies.(Report): 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 11515 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: Increased thermal performance of metal building roof and wall assemblies can be achieved by using double layers of fiberglass batt insulation. Determination of the installed double layer assembly U-factor is more complex than that of a single layer assembly when each layer has different material properties. Experimental data on the compression of typical fiberglass batt insulation samples are presented along with the derivation of the double layer U-factor equations. Finally, an example is presented to illustrate the application of the U-factor equations. These equations comprise the basis for the revised double layer U-factors for ASHRAE Standard 90.1-2010.

Citation Details
Title: ASHRAE Standard 90.1 metal building U-factors-Part 3: equations for double layers of fiberglass batt insulation in roof and wall assemblies.(Report)
Author: Merle F. McBride
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: 177(12)

Article Type: Report

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