Posts tagged with: hour (Clear Filter)

How to Achieve 4-Hour Fire Rated Protection

Date: September 27, 2016 Author: durasystems Categories: Passive Fire Protection

While many buildings have a 1- or 2-hour fire rating, 4-hour fire rated protection can easily save lives. To accomplish a four-hour rating, several elements must be considered.  DoorsDoors have a fire rating classification based on the fire rating of the wall into which they are installed. The location in the building and the current building code are used to establish the fire rating of the wall. The rating is broken down by time for steel fire doors. Typically, this includes 20 minutes,...


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