Sfdbi Roof Deck Sprinklers

When rooftop sprinklers are activated they spray water high up in the air which lands on the roof trees and other surfaces that are within range.
Sfdbi roof deck sprinklers. Firesafe marin recommends that you replace any wood shake roof with a fire sesistant type a roof assembly but until that happens your house is the rare case a sprinkler might be helpful. 2019 codes effective january 1 2020 as a reminder 2019 san francisco and california codes are effective for permit applications filed on or after january 1 2020. And fire sprinklers requirements for roof decks. The codes include building plumbing electrical mechanical energy and green building codes.
Section 504 2 automatic sprinkler system increase. Eg 01 exiting and fire sprinkler requirements for roof decks eg 02 emergency escape and rescue openings to yard for r 3 occupancies word eg 03 exiting requirements for addition and alteration to existing non sprinklered r 3 single family building not exceeding 3 stories under 2013 sfbc word. Section 903 2 8 2 exception. This soaking of the roof and landscape also releases moisture into the air lowering ambient temperatures and increasing humidity levels.
Rooftop sprinklers are a proven method of improving the chances that a building will survive a wild fire according to various studies. For more information contact department of building inspection housing inspection services 1660 mission street 6th floor san francisco ca 94103 2414 415 558 6220 email. Section 903 3 1 2 nfpa 13r sprinkler system. Section 903 3 1 1 nfpa 13 sprinkler system.
Without a fire resistant roof the protecting of your home will fall short. When an occupied roof has an assembly occupancy with an occupant load exceeding 100 for group a 2 and 300 for other group a occupancies all floors between the occupied roof and the level of exit discharge shall be equipped with an automatic sprinkler system in accordance with section 903 3 1 1 or 903 3 1 2. There is no grace period. The roof saver sprinkler kit is an exterior fire prevention system designed to wet roofs gutters decks surrounding trees and shrubs making these fuels less susceptible to ignition.
Local fire agencies agree that the only time a sprinkler system on the roof may be advisable is if you have a combustible wood roof. Once a falling ember burns out the firebrand should not burn through to the roof deck and flames and spread to other parts of the roof. Placing embers guard rooftop sprinkler system increases your chances to defend your home from flying embers. Section 1015 1 exits or exit access doorways from spaces.
2019 california codes have a code question.