Fire Door Smoke Seal Regulations

The gaskets must be fire listed and approved for use in a smoke and draft control assembly.

Fire door smoke seal regulations.

Ings for a basic fire door frame unless the labeling on the frame specifically states that the frame is rated for something less than 3 hours. Frames used in masonry walls may be used with a maximum 3. Smoke gaskets on fire doors must meet smoke and draft control requirements. For example the ibc requires this limited airflow for fire doors that are also smoke and draft control doors in corridors and smoke barriers.

These seals are fitted into grooves cut into the door or the frame or alternatively can be surface mounted. If a frame bears a recognized label qualifying it as a fire door frame it may sup port a 3 hour a 1 1 2 hour a 3 4 hour or a 1 3 hour door. As soon as the temperature in the vicinity of the strips exceeds 200 c usually about 10 15. So in apartment buildings where tenants will have to use the same stairwell to get to safety in case of a fire.

Smoke seals can be fitted into the door itself or a better option is to apply to the door stop so that the fire door closes onto the seals. All fire doors should be fitted with intumescent strips strips that expand at 100 degrees to fill gaps and doors that lead to stair enclosures or protected corridors must have smoke seals. A door sweep or bottom seal is not a required. And tends not to rise therefore smoke seals on fire doors are essential.

Nylon brush or neoprene smoke seals draught proofing kits are acceptable. To properly specify doors frames and hardware for fire door and smoke door assemblies it is critical the proper terminology is used and the correct code requirements are referenced. Intumescent fire door seals should be fitted to the stiles and head of a fire resisting doorset. Fire door seals or fire and smoke seals.

A gasket is required to provide a seal where the door meets the stop at the top and on both sides. It is vital that all the properties have fire doors with smoke seals leading to that common area. Opening all fire doors should open in the direction of escape and should not swing both ways double swing otherwise smoke seals will not work correctly. Fire doors even the 20 minute assemblies are subject to completely different criteria than the non fire rated smoke doors.

Not all fire doors and smoke doors are required to have air leakage limited to this level the key is to look for the reference to ul 1784 in the requirements for a specific door location. For example for a 20 minute fire.