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    Author(s): J. E. Winandy
    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
    PDF: View PDF  (230 KB)

    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.

    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.

    Citation

    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.

    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

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