10 Mm Gap Under Fire Door

3 4 between door and frame.

10 mm gap under fire door.

Bs 8214 2008 code of practice for fire door assemblies states that 9 5 3 under door threshold gaps. Nfpa 80 fire doors and other opening protectives. The gap between the door and the frame is extremely important and must be suitable for the intumescent seal fitted. Thresholds are available in various versions the doors can also be installed without a threshold with a 10 mm gap under the bottom edge.

How much can you cut off a fire door. To facilitate the checking of this gap on site the bwf certifire fire door and doorset scheme has produced a gap tester which can be. Underneath the fire door a gap of 8mm is traditionally acceptable although for fire doors that are required to limit spread of cold smoke only 3 mm is permissible with a threshold seal to be fitted if the gap is bigger. 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 tester is available on request here.

1 8 meeting edges for a pair of doors. 1 8 for more detailed gap information refer to nfpa 80 section 6 3 1 7 and section. The doors can be designed with anti finger trap. Doors with a horizontal cross bar meet the requirements for separating elements in fire rating classes e30 ei15 and a30.

However for test purposes the threshold gap is taped and some form of effective threshold seal should be used if complete smoke control is to be achieved unless the threshold gap does not exceed 3 mm at any point. Our fire door gap gauge is a handy tool designed for easy use thanks to the clearly marked dark blue recommended door gap area. When speaking with manufacturers however a common statement is that a fire doors gap of up to 8 mm underneath the door is permissible. The gaps between a fire door and its frame need to be 2 to 4mm in width to ensure that both the door can close smoothly and that the fire cannot spread through the gap of the fire door.

Contains information on maximum gap allowances for different types of fire doors. In general the gap should not exceed 3 mm. In general clearance for those allowed gaps are as follows. Nothing must be cut at the top at all and the certification label must remain intact.

Fire door seals august 2012 bw623 gap tester outlines indd 2 20 10 10 11 24 31 giving you the facts about fire door seals.