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. 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. The types of smoke doors i identified are. Smoke gaskets on fire doors must meet smoke and draft control requirements. Intumescent seals or gaskets are not required on fire rated steel doors.
A fire doors shall comply with paragraph c8 1 of appendix c. A gasket is required to provide a seal where the door meets the stop at the top and on both sides. Typically found and whether the doors require a fire rating a closer a latch and gasketing. The gaskets must be fire listed and approved for use in a smoke and draft control assembly.
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. A door sweep or bottom seal is not a required. B smoke control doors shall except as required by paragraph 6 19 4 comply with paragraph c8 1 of appendix c. Intumescent products are typically used for a smoke and fire barrier on wood doors and are activated by heat.
These seals are fitted into grooves cut into the door or the frame or alternatively can be surface mounted. How to install smoke seals on a fire door. A common location for 20 minute fire door assemblies is a residential corridor leading to dwelling or sleeping units. Frames used in masonry walls may be used with a maximum 3.
Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listing. This standard shall prescribe minimum requirements for smoke door assemblies for use in providing safety to life and protection of property from smoke. Fire door seals or fire and smoke seals. 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.
Intumescent fire door seals should be fitted to the stiles and head of a fire resisting doorset. Smoke seals are designed to accomplish this. 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. 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.
As soon as the temperature in the vicinity of the strips exceeds 200 c usually about 10 15.