It should be 8 10mm max from bottom of the door to the surface onto which the carpet etc is laid.
Fire door gaps uk.
Nothing must be cut at the top at all and the certification label must remain intact.
All fire doors display certificates and relevant markings to verify their fire integrity.
3 4 between door and frame.
Under the bottom of a door.
Fire doors basic guidance.
I work in a relatively new office buiding that has internal fire doors with cold smoke seals and the gaps under the doors range from 5mm to 10mm.
Ce marked hinges tested to bs en1935 should be used on fire or smoke.
If there isn t one it is most likely not a fire door and will not protect you in a fire.
Fire doors need a seal around the edges which swells when heated to block any gaps if the doors are fitted with windows the glazing must be fire resistant all ironmongery on the doors needs to be fire resistant.
Check for a label or a plug on top or on the side of each door for a fire resistance rating.
Bs9999 2008 recommends for fire doors with cold smoke control that the threshold gap should be either less than 3mm in height or should be fitted with a threshold seal.
1 8 for more detailed gap information refer to nfpa 80 section 6 3 1 7 and section.
How much can you cut off a fire door.
What gaps are required around a door and its frame.
Nfpa 80 fire doors and other opening protectives.
In general the gap should not exceed 3mm along the 2 long edges and across top of the door leaf to facilitate checking of the gap on site a bwf fire door alliance scheme gap.
Gaps between fire doors and the door frame should never be more than 4mm or less than 2mm.
Please could you confirm or otherwise my understanding that the maximim 8 10mm gap usually cited as permissible at the bottom of the fire door should be to allow for the carpet i e.
The gap between the door and the frame is extremely important and must be suitable for the intumescent seal fitted.
In general clearance for those allowed gaps are as follows.
Gaps around the fire door should be 3mm or less to stop smoke.
Regulations which apply the directive and its requirements in the uk.
1 8 meeting edges for a pair of doors.
Contains information on maximum gap allowances for different types of fire doors.
This makes the gap between the carpet and doors around 10 15mm.
