Is it permissible to protect an attic entirely with Tyco AP sprinklers? I am looking at a project with a 3:12 roof slope. The Roof is */- 40' span. Tyco makes a BB sprinkler that allows a 3:12 roof slope, but a max span of 20'. I do not see any criteria in the data sheet for the Tyco Attic Sprinklers for a roof entirely protected with AP sprinklers, only a mix of HIP, BB, SD & AP.
Or, it is possible to put a row of the 4.2K BB sprinklers at the ridge and then put a row of AP sprinklers at the eave to get the 40' roof span coverage. In that way, the 4.2k BB would only be protecting up to 20' and the AP would get the last 10' on each side to give me my total roof span of 40'. The reason for doing this is to try to utilize CPVC piping in the attic as well as the floors below where the CPVC is allowed without a problem. -- Please feel free to call if you have any questions or comments. Sincerely, Travis Mack, SET MFP Design, LLC 2508 E Lodgepole Drive Gilbert, AZ 85298 Office (480) 505-9271 Fax (866) 430-6107 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
