by U.S Dept. of Agriculture, Forest Service, Forest Products Laboratory in Madison, WI .
Written in English
|Other titles||Thermal degradation of fire retardant treated plywood.|
|Statement||Jerrold E. Winandy ... [et al.].|
|Series||Research paper FPL-RP -- 501.|
|Contributions||Winandy, Jerrold E., Forest Products Laboratory (U.S.)|
|The Physical Object|
|Pagination||21 p. :|
|Number of Pages||21|
Thermal degrade of fire-retardant-(FR-)treated plywood roof sheathing and roof-truss lumber is a complex function of wood and treatment chemistry and field exposure conditions. Because borate-based treatments inhibit or reduce the rate of thermal degradation in wood exposed to elevated temperatures, they may also be effective as a. commonly associated with plywood roof decks, where exposure thermal degradation occurs, to radiant heat is most significant. However, the effects on thereby increasing the dimensional lumber used in roof framing can be equally dramat amount of char and reduc ic. Significant reduction in both the Modulus of Elasticity ing the amount of flammaFile Size: KB. In the United States, problems with fire-retardant-treated plywood roof sheathing and roof-truss lumber have occurred in the field; thermal degradation has occurred in . Premature Degradation of Fire-Retardant-Treated (FRT) Plywood Used in Roof Decks. The following is adapted with permission from an original Fire-Retardant-Treated (FRT) Plywood article in Professional Roofing by Tom Bollnow, Professional Roofing, May p
Choosing and applying fire-retardant-treated plywood and lumber for roof designs. Madison, WI: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory,  (OCoLC) Between a substantial number of multifamily housing units in the Eastern and Southern U.S. experienced problems with thermally degraded fire-retardant-treated (FRT) plywood roof sheathing. “Thermal Degradation of Fire-Retardant-Treated Plywood: Development and Evaluation of a Test Protocol,” Res. Pap. FPL-RP, U.S. Dept. of Agriculture, . Winandy ond Lebow-MODELS FOR THERMAL DEGRADE OF FIRE-RETARDANT-TREATED WOOD 4 1 20 there has been support for both the linear and transformably linear models, we also consid- 15 ered the possibility of the nonlinear model be- cause of its close relationship to other models 80 and its theoretical appeal. 10 In the first-stage of a traditional Cited by:
Thermal Degradation of Wood Treated with Fire Retardants. II. Strength Losses Thermal Degradation of Wood Treated with Fire Retardants. II. Strength Losses Berndt, H.; Schniewind, A.P. Introduction Building codes require wood to be fire-retardanttreated for many applications. Fire retardant chemicals impede combustion by catalyzing the formation of . Wood is one of the most sustainable, aesthetically pleasing and environmentally benign materials. Not only is wood often an integral part of structures, it is also the main source of furnishings found in homes, schools, and offices around the world. The often inevitable hazards of fire make wood a very desirable material for further investigation. As well as ignition resistance Cited by: certification organization for fire-retardant-treated lumber and plywood. FRTW is generally restricted to interior use because of the possibility that the protective salts in the treatment chemicals will leach out of the materials if they are exposed to the weather. FRTW products are used in many interior applications, File Size: KB. Free Online Library: Physical and mechanical properties of laminated strand lumber treated with fire retardant. by "Forest Products Journal"; Business Forest products industry Fireproofing agents Influence Flame retardants Laminated wood Mechanical properties Lumber.