The Fire Rated Ceiling Valves have been fire tested to BS EN 1365-2:1999 by The Building Test Centre in a full scale horizontal loaded timber joist floor and the ceiling and floor construction with the valves installed, achieved a Fire Rating of over 60 minutes.
The Fire Rated Ceiling Valves are available in both Supply and Exhaust configurations and incorporate integral intumescent materials. During a fire, the intumescent material expands and closes the aperture of the valve, re-instating the fire resistance of the structure.
