Warnock Hersey Fire Door Rating

Intertek s warnock hersey mark is a mark certifying product safety and performance used in north america including on wood fire rated doors.

Warnock hersey fire door rating.

Nearly 80 of north america s wood fire rated doors bear the wh mark. 1 hours 3 hours. Engineered to meet warnock hersey standards for long lasting durability and performance this fire rated door offers a 20 minute neutral pressure fire rating and includes a primed wood frame. Intertek s warnock hersey mark has long been a marquee mark in building product industry and in 2013 intertek introduced the next evolution of the warnock hersey mark.

Hourly ratings include 1 1 2 hours 1 hour 3 4 hour and 1 3 hour with the maximum rating required of any swinging type fire door being three hours. The new mark combined the storied etl mark with the traditional warnock hersey wh mark. Our facility undergoes routine inspections to verify that modifications are. This mark is widely recognized throughout the industry appearing on fire doors and frames found in north america and beyond.

Intertek s warnock hersey mark has long been one of the industry s most recognizable marks and is found on a variety of products including fire doors and frames. Pre primed and ready to paint the door is pre drilled to accept most handle sets sold separately. Red oak fr 50 raised panel cherry fr 843 raised panel maple fr 20 flat panel. Door system includes 3 standard hinges.

Ubc standard 7 2 1997 positive pressure test method. Product overview fire rated steel doors for commercial industrial applications. 90 minute warnock hersey red label 9 shipper call out 90 minute whi specifics label each door of pairs 90 minute rated mineral core composite stiles rails positive pressure warnock hersey s label silver label 10 red lettering shipper call out 20 45 60 90 positive pressure whi specifics label each door of pairs used with all whi. In terms of a fire door this is measured by a length of time eg.

The label contains other information as well such as the manufacturer whether the opening is equipped with fire exit hardware and whether the door carries a. All republic doors and frames have been fire tested in accordance with ul 10b ul 10c ubc 7 2 and astm e 152 and are all produced under underwriters laboratories and warnock hersey its factory inspection and labeling service program. Intertek is a company that ensures products meet safety health environmental and quality standards for almost any product. A fire resistance rating is the duration for which a door can withstand a fire resistance test.

Flat or raised panel stile and rail wood fire door type a or type b.