FlamePRO® brand fire retardant treated wood is typically permitted for interior, above ground applications such as: roof systems, studs, flooring, joists, sill plates (when not in direct contact with the ground), blocking and furring, and other interior applications.
The specifier and/or end user is responsible to review the test data on FlamePRO® brand fire retardant treated wood to determine if it is acceptable for the intended end use.