Fire Door Smoke Seals Requirements

In commercial buildings in the united states fire rated doors require special gaskets to prevent smoke from getting through the opening during a fire.

Fire door smoke seals requirements.

How to install smoke seals on a fire door. Intumescent products are typically used for a smoke and fire barrier on wood doors and are activated by heat. B smoke control doors shall except as required by paragraph 6 19 4 comply with paragraph c8 1 of appendix c. 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.

Further the clearance around the door must be limited but other requirements associated. These seals are fitted into grooves cut into the door or the frame or alternatively can be surface mounted. A common location for 20 minute fire door assemblies is a residential corridor leading to dwelling or sleeping units. Typically found and whether the doors require a fire rating a closer a latch and gasketing.

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. Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listing. 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. Frames used in masonry walls may be used with a maximum 3.

As soon as the temperature in the vicinity of the strips exceeds 200 c usually about 10 15. For example the ibc requires this limited airflow for fire doors that are also smoke and draft control doors in corridors and smoke barriers. Smoke seals shall be fitted at the head and all vertical edges in the gaps between the door leaf or leaves and the frame and between leaves in multi leaf door sets. Doors required to provide an effec tive barrier to limit the transfer of smoke doors in smoke partitions doors in smoke barriers fire door assemblies in corridors and smoke barriers.

A fire doors shall comply with paragraph c8 1 of appendix c. Intumescent fire door seals should be fitted to the stiles and head of a fire resisting doorset. Smoke seals are designed to accomplish this. A door sweep or bottom seal is not a required.

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. The international building code ibc and national fire protection association nfpa 101 life safety code do mandate positive latching hardware for these doors in hospital corridors. Intumescent seals or gaskets are not required on fire rated steel doors.

The types of smoke doors i identified are.