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.

These seals are fitted into grooves cut into the door or the frame or alternatively can be surface mounted. For example the ibc requires this limited airflow for fire doors that are also smoke and draft control doors in corridors and smoke barriers. A common location for 20 minute fire door assemblies is a residential corridor leading to dwelling or sleeping units. Smoke seals are designed to accomplish this.

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. Smoke gaskets on fire doors must meet smoke and draft control requirements. 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. 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. Typically found and whether the doors require a fire rating a closer a latch and gasketing. Intumescent seals or gaskets are not required on fire rated steel doors. A door sweep or bottom seal is not a required.

This standard shall prescribe minimum requirements for smoke door assemblies for use in providing safety to life and protection of property from smoke. The gaskets must be fire listed and approved for use in a smoke and draft control assembly. Intumescent products are typically used for a smoke and fire barrier on wood doors and are activated by heat. 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.

Further the clearance around the door must be limited but other requirements associated. A fire doors shall 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. B smoke control doors shall except as required by paragraph 6 19 4 comply with paragraph c8 1 of appendix c.

The types of smoke doors i identified are. 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. Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listing. 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.

A gasket is required to provide a seal where the door meets the stop at the top and on both sides.