Warnock Hersey Fire Door Rating

Intertek is a company that ensures products meet safety health environmental and quality standards for almost any product.

Warnock hersey fire door rating.

Ubc standard 7 2 1997 positive pressure test method. In terms of a fire door this is measured by a length of time eg. Red oak fr 50 raised panel cherry fr 843 raised panel maple fr 20 flat panel. The new mark combined the storied etl mark with the traditional warnock hersey wh mark.

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. Flat or raised panel stile and rail wood fire door type a or type b. Door system includes 3 standard hinges. 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.

Nearly 80 of north america s wood fire rated doors bear the wh mark. Product overview fire rated steel doors for commercial industrial applications. 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. Trudoor is an authorized whi fire labeled shop warnock hersey intertek enabling us to modify re certify and label fire rated doors and frames.

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. 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. 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. And we are certified by ul to cut re certify and label fire rated glazing materials.

This mark is widely recognized throughout the industry appearing on fire doors and frames found in north america and beyond. Steel fire doors are rated by time in minutes or hours that a door can withstand exposure to fire test conditions. Intertek s warnock hersey mark is a mark certifying product safety and performance used in north america including on wood fire rated doors. 1 hours 3 hours.

Our facility undergoes routine inspections to verify that modifications are.