although the allowed material by type f construction is the primary driver, I
suspect that the plywood would not be classified as structural components (what
do you think John?). There is a restriction on the flame spread rating for
interior surfaces that could play a role in this.
Roland
On
Chapter 23
TREATED WOOD.
Wood and wood-based materials that use vacuum-pressure impregnation
processes to enhance fire retardant or preservative properties.
Fire-retardant-treated wood. Pressure-treated lumber and plywood that
exhibit reduced surface-burning characteristics and resist propagation
SECTION 603 COMBUSTIBLE MATERIAL IN TYPE I AND II CONSTRUCTION
John Drucker, CET
Fire Protection Subcode Official
Fire/Building/Electrical Inspector
Fire Marshals Office
Borough of Red Bank, NJ
Not the official position of any agency, association, committee or
otherwise. Obtain required applic
