The Kerf Profile option for Rediframe is a prefinished fixed throat steel door frame designed for interior and exterior applications where the strength of a steel door frame is desired. Especially suited for interior or exterior applications (new construction and light commercial) such as hotel/motel, assisted living, residential, multi-family, offices, condominiums, hospitality, assisting living, dormitories, and public housing. Embossed 90 minute neutral and positive pressure fire label wood or steel stud. Approvals available for HVHZ and Wind Zone 4 per ASTM E1996. Designed to be installed AFTER walls are finished, eliminating on-site painting and reducing construction damage to opening. Demountable without damage to the finished wall, door or frame.