Visibility
In interior application to separate compartment zones, Fire Doors are most of the times required to be fitted with vision panels so that flames or smoke may be seen and collisions avoided.
Fire Rating
The most important attribute of Fire Doors is its fire rating. Fire rating is the door’s capability to withstand fire and remain intact for the duration. Fire rating is measured in minutes (sometimes hours) the fire door was able to maintain integrity while subjected to fire.
Air Tightness
Fire Doors serve as the access between the safe egress and a burning compartment, it is therefore important that fire doors do not permit smoke to the safe side. Fire doors are fitted with smoke seals to address this factor.