Ed, that was my thought but I’ve never used it with a dry system. Todd Williams
Fire Protection Design/Consulting Stonington, CT 860-608-4559 > > On Jun 24, 2024 at 2:22 PM, <Ed Kramer (mailto:[email protected])> wrote: > > > > > > Have a rated wall or walls installed between sections and use room design > method? > > > > Ed K > > > > > > > > > > > > > > > > From: Fpdcdesign <[email protected]> > Sent: Monday, June 24, 2024 9:52 AM > To: Sprinklerforum <[email protected]> > Subject: [Sprinklerforum] Reducing dry system area > > > > > > > > > > > I am working on a building with a unique facad where I am trying to figure > out the calcs. Each end of the building has a 24x24 “tower” where the roof > slope on 4 sides to a peak. The center of the building over the entry has a > 24x17 inverted V sloped roof. Connecting each of these is a mansard. All > construction is combustible. The roof slopes are 7:12. The total area is > approximately 2000 sqft. > > > > > > > > > > > > The sections are separated by a plywood barrier. > > > > > > > > > > > > The occupancy is Light Hazard. It’s is a dry system so I have to increase the > RA by 30%. Since the slopes are steep enough, I have to increase another 30%, > for a total of 2535 sqft design area. > > > > > > > > > > > > My layout consists of 27 sprinklers (including 3 attic AS in the center > section). No realistic way to decrease due to the arrangement. This totally > blows out that calc with a 27 sprinkler flow. > > > > > > > > > > > > Any thoughts on how to decrease the number of sprinklers flowing? I have > tried all of my tricks but haven’t come up with anything yet. > > > > > > > > > > > Todd G Williams, PE > > > > > Fire Protection Design/Consulting > > > > > > Stonington, CT > > > > > > 860-535-2080 (tel:860-535-2080) (ofc) > > > > > > 860-554-7054 (tel:860-554-7054) (fax) > > > > > > 860-608-4559 (tel:860-608-4559) (cell) > > > > > > _________________________________________________________ SprinklerForum > mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to [email protected] >
_________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
