Fire Door Smoke Seals Requirements

The types of smoke doors i identified are.

Fire door smoke seals 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. B smoke control doors shall except as required by paragraph 6 19 4 comply with paragraph c8 1 of appendix c. A common location for 20 minute fire door assemblies is a residential corridor leading to dwelling or sleeping units. Intumescent products are typically used for a smoke and fire barrier on wood doors and are activated by heat.

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 door sweep or bottom seal is not a required. Typically found and whether the doors require a fire rating a closer a latch and gasketing.

Intumescent fire door seals should be fitted to the stiles and head of a fire resisting doorset. A gasket is required to provide a seal where the door meets the stop at the top and on both sides. 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. Further the clearance around the door must be limited but other requirements associated.

As soon as the temperature in the vicinity of the strips exceeds 200 c usually about 10 15. Smoke seals are designed to accomplish this. For example the ibc requires this limited airflow for fire doors that are also smoke and draft control doors in corridors and smoke barriers. Frames used in masonry walls may be used with a maximum 3.

How to install smoke seals on a fire door. In commercial buildings in the united states fire rated doors require special gaskets to prevent smoke from getting through the opening during a fire. These seals are fitted into grooves cut into the door or the frame or alternatively can be surface mounted. Smoke gaskets on fire doors must meet smoke and draft control requirements.

Intumescent seals or gaskets are not required on fire rated steel doors. 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. This standard shall prescribe minimum requirements for smoke door assemblies for use in providing safety to life and protection of property from smoke. Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listing.

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.