Construction Details
HOURLY ASSEMBLIES
We have provided drawings and construction details for exterior bearing and nonbearing walls requiring a fire resistance rating to assist users of PyroGuard™ fire-retardant-treated lumber and plywood.
The drawings and construction details for 2-hr rated walls are based on assemblies listed by UL and the Gypsum Association. For 1-hr. walls the component additive method in Section 721.6 and the construction requirements in the International Building Code were used. Questions should be directed to 1 (800) TEC-WOOD (832-9663).
2 Hour FR Rated Exterior Wall Assembly (Interior Side Only)
Construction
Details
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Construction
Details
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1 Hour FR Rated Exterior Wall Assembly (Interior Side Only)
Construction
Details
(.doc)
Construction
Details
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A recent test at UL has resulted in a unique listing for a 2-hour fire-resistance rated bearing wall assembly of PyroGuard fire-retardant-treated lumber and PyroGuard fire-retardant-treated plywood. This new listing, UL Design No. V314, covers the vast majority of structure exposures providing an alternative to those designers wanting a UL Design number.