FlameTech™ Interior FRTW (fire retardant treated wood) lumber and plywood meets the requirements for FRTW as listed in ICC AC66 and complies with all parts of Section 2303.2 of the IBC (International Building Code) 2018, 2015, 2012, 2009, and Section R802.1.5 of the IRC for use as Interior FRTW where required by code (ASTM E84 extended & ASTM E2768), and has also been tested for fire-resistance and as a component of a building materials assembly (ASTM E119) providing certified & listed 1- & 2-Hr Fire-Rated Exterior Load Bearing Wall Assemblies (100% design load – no mineral wool required).
FlameTech™ FRTW lumber and plywood is kiln-dried after treatment (KDAT) to a moisture content of 19% for lumber and 15% for plywood. Solid dimensional lumber and timbers in Southern Pine, Douglas Fir, SPF and other wood species as #2 and higher grades. Structural plywood in Douglas Fir, Southern Pine & Elliotis Pine ranging from 15/32 to 1-1/8 inches C-D Exposure 1 and higher grades.
FlameTech™ FRTW plywood may be used as a component of a shear wall following the AWC Special Design Provisions for Wind and Seismic (SDPWS) Section 4.2 and 4.3, or IBC Section 2306.2 and 2306.3, provided, in either case, the nominal panel thickness is increased by 1/8 inch for the tabulated allowable shear values.
