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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Requested Product

Title: Combined Effects of Fire-Retardant Treatments and Extended Exposure to Elevated Temperature

Source: In: Proceedings, 87th American Wood -Preservers™ Association annual meeting; 1991 April 29-31- May 01; Seattle, WA. Woodstock, MD: American Wood Preservers™ Association; Volume 87, 1992; pp. 121.

Author(s)Winandy, Jerrold E.; LeVan, Susan L.; Ross, Robert J.

Publication Year: 1992  View PDF »

Category: Conference Proceedings

Abstract: Fire retardant (FR) treated wood has been used for nearly 50 years in the United States. FR treatments reduce wood strength and these reductions must be considered in the design process. However, additional strength reductions related to thermal degradation have recently been encountered with the use of some FR treatments for plywood roof sheathing and roof trusses. The Forest Products Laboratory has mounted a large research program into this phenomenon. As a result a number of reports have been recently published on: problems with FR-treated plywood used as roof sheathing (LeVan and Collet 1989), the thermo-chemical factors involved (LeVan and Winandy, 1990), time-temperature effects on strength (LeVan et al 1990), design guidelines (Winandy 1990), review of the development and an evaluation of the new ASTM Emergency FRT-Plywood Standard (Winandy et al 1991), and the effects of cyclic thermal exposures (LeVan and Kim 1991).

Keywords: fire retardants, exposure, temperature relations, thermochemical properties, wood preservation, wood properties

Publication Review Process: Non-Refereed (Other)

File size: 65 kb(s)

Date posted: 10/24/2014
RITS Product ID: 71466
Current FPL Scientist associated with this product
Ross, Robert J.
Supervisory Research Gen. Engineer

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