Warnock Hersey Fire Door Rating

A fire resistance rating is the duration for which a door can withstand a fire resistance test.

Warnock hersey fire door rating.

Our facility undergoes routine inspections to verify that modifications are. Intertek is a company that ensures products meet safety health environmental and quality standards for almost any product. Ubc standard 7 2 1997 positive pressure test method. Steel fire doors are rated by time in minutes or hours that a door can withstand exposure to fire test conditions.

1 hours 3 hours. 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. Trudoor is an authorized whi fire labeled shop warnock hersey intertek enabling us to modify re certify and label fire rated doors and frames. And we are certified by ul to cut re certify and label fire rated glazing materials.

In terms of a fire door this is measured by a length of time eg. Nearly 80 of north america s wood fire rated doors bear the 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. 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.

Door system includes 3 standard hinges. Flat or raised panel stile and rail wood fire door type a or type b. This mark is widely recognized throughout the industry appearing on fire doors and frames found in north america and beyond. 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.

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. Red oak fr 50 raised panel cherry fr 843 raised panel maple fr 20 flat panel. 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 new mark combined the storied etl mark with the traditional warnock hersey wh mark.