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Title: Thermal load histories for North American roof assembles using various cladding materials including wood-thermoplastic composite shingles

Author: Winandy, J. E.;

Date: 2006

Source: 6th Global Wood and Natural Fibre Composites Symposium : April 04-05, 2006 : scientific presentations. Kassel, [Germany] : Institut fur Werkstoffechnik Kunststoff- und Recyclingtechnik, Universtiy of Kassel, 2006: 8 pages.

Publication Series: Miscellaneous Publication

Description: Since 1991, thermal load histories for various roof cladding types have been monitored in outdoor attic structures that simulate classic North American light-framed construction. In this paper, the 2005 thermal loads for wood-based composite roof sheathing, wood rafters, and attics under wood-plastic composite shingles are compared to common North American roof cladding materials, solid wood shingles and black-and white-fiberglass shingles. WTPC-shingles have appeared to suffer no damage after over three-years of weathering and solar exposure. The summertime thermal load data for flakeboard and plywood sheathing temperatures under wood-plastic composite shingles were cooler than sheathing under North America's most commonly used fiberglass shingles. Lower shingle, sheathing and rafter temperatures should provide increased roof-system service-life.

Keywords: Building materials, service life, glass fibers, weathering, sheathing, roofing, thermal fatigue, shingles, temperature, roofs, thermoplastic composites, composite materials, thermal properties, western red cedar, thermal stresses, durability, wood-plastic composites

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Winandy, J. E. 2006. Thermal load histories for North American roof assembles using various cladding materials including wood-thermoplastic composite shingles. 6th Global Wood and Natural Fibre Composites Symposium : April 04-05, 2006 : scientific presentations. Kassel, [Germany] : Institut fur Werkstoffechnik Kunststoff- und Recyclingtechnik, Universtiy of Kassel, 2006: 8 pages.

 


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