Interesting. I was working off an old cut sheet where it clearly says 60' to 80' option. Just checked the latest on the web. They did indeed changed the beyond BB range/span to add a row of AP's for all dimensions. I suppose I learned something new so I can go home now? Thanks for the heads up. Maybe I can use this now that the economy is in recovery, (every place but here apparently, LOL.)
Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Travis Mack, SET Sent: Monday, February 22, 2010 12:35 PM To: [email protected] Cc: Tony Grantham Subject: Re: Attics and Tyco AP sprinklers I just got off the phone with a rep from Tyco. Basically, you can not protect an entire attic utilizing AP sprinklers. Those are only to augment areas outside normal BB, SD and HIP sprinklers where standard spray sprinklers were the only option previously. However, I was informed that with the area where I have a 40' roof span, it would be permissible to use the 4.2K BB sprinklers at the ridge and then have 1 row of AP sprinklers at the eaves to provide coverage of the 40' roof that is 3:12. On 2/22/2010 11:11 AM, Chris Cahill wrote: > Art, the original question is a 3:12 roof no BB's that will do 40'. They > are all 4:12. > > To the other original question I think BB's with a 20' span and AP's taking > the last 10' would work functionally but I don't think it's listed for that > so no. The only place I find that is for 60' to 80' spans. With a specific > listed product you have to stick to the details of the listing. > > Chris Cahill, P.E. > Fire Protection Engineer > Sentry Fire Protection, Inc. > > 763-658-4483 > 763-658-4921 fax > > Email: [email protected] > > Mail: P.O. Box 69 > Waverly, MN 55390 > > Location: 4439 Hwy 12 SW > Waverly, MN 55390 > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Art Tiroly > Sent: Monday, February 22, 2010 11:54 AM > To: [email protected]; [email protected] > Subject: RE: Attics and Tyco AP sprinklers > > Check the TYCO attic sprinkler info again. With sloped roof in a wood truss > attic you can cover the 40-60ft wide attic with BB sprinklers at the peak > only spaced 6ft apart. They are available in K= 5.6 and 8.0 with just one > row at the peak. Attic Sprinklers are expensive but very efficient install. > Both wet and dry applications. > > Arthur Tiroly > ATCO Fire Protection Design > Tiroly and Associates > 216-621-8899 > 216-570-7030 Cell > WWW.ATCOfirepro.com > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Travis Mack, > SET > Sent: Sunday, February 21, 2010 4:41 PM > To: [email protected] > Subject: Attics and Tyco AP sprinklers > > 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) > > _______________________________________________ > 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) > > _______________________________________________ > 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) > -- 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) _______________________________________________ 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)
