Nfpa 13 Draft Curtain

The maximum projected floor area under an individual sprinkler system shall be in accordance with chapters 6 and 7. Paragraph 3 3 8 draft curtain of nfpa 13 2016 standard for the installation of sprinkler systems defines draft curtains as a continuous material protruding downward from the ceiling to create a reservoir for collecting smoke and heat. Nfpa 13 requires closely spaced sprinklers with a draft curtain around unenclosed moving stairways staircases or similar unenclosed floor openings which are not large 20 feet or more across and 1000 sqft or greater as an alternative to the enclosure of the vertical opening nfpa 13 8 15 4 1 in 2016 and 9 3 5 1 in 2019.

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Standards And Applications For Smoke And Fire Protective Curtains Page 6 Of 6 Construction Specifier

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5 17 3 draft curtain areas shall be around each roof ceiling fire suppression system and subdivided such that a single draft curtain area shall not exceed 697 m2 7500 ft2.

Nfpa 13 draft curtain.

With standard response sprinklers a draft curtain of noncombustible construction and at least 2 ft 600 mm in depth shall be required to separate the two areas. It references nfpa 204 2015 standard for smoke and heat venting for additional information. Curtains also rate glass up to two hours and are used in lieu of static glass draft curtains per nfpa 13. Icc ac 77 listed for elevator door smoke containment to remove the need to pressurize the hoistway or have lobby doors on hold open.

Draft curtains are also required by nfpa 13 in buildings where an early suppression fast response esfr is adjacent to standard response systems. 888 917 8777 us smoke and fire corporate video from u s. Smoke fire on vimeo. According to nfpa 13 draft curtains need to be 2 feet deep but the ibc code commentary refers to 18.

Previous article next article. 20 6 6 6 3 20 6 5 3 3 a clear aisle of at least 4 ft 1 2 m centered below the draft curtain shall.

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