Few thoughts. Eaves are outside the building usually separated by at least insulation. So unless they are over 4' wide I don't see them in the floor area.
Dormers are usually on top of the roof and no need to double count the sq.ft. Wouldn't matter it the main roof sheathing was open or not. And I can't put my finger on a reference but the system size is area actually covered. In theory you don't have to count area where there are no sprinklers like wall cavities, shafts and even electrical rooms (meeting the exception). For whatever reason, if there is no sprinkler you don't have to count the foot print. The applicable code phrase is "to be protected by sprinklers". If it ain't protected by sprinklers it ain't floor area counted. And exactly which exception are you using to base omitting sprinklers with spray fire retardant. I'm not thinking of one. Spray on is not fire treated. 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 Michael Gallello Sent: Wednesday, August 12, 2009 9:39 AM To: [email protected] Subject: RE: attic Assuming that your system configuration would conform to trip times... The talk is about 'floor area", correct? So my assumption of your situation is that these dormers and eves extend the footprint of the area from 50K to 53K. If that's the case and it's not "overlapping" floor area (like a mezzanine type of thing), I'd see it as 2 systems required. Given the consideration its borderline, with likely trip time issues, I'd be in line to provide what's best for the owner as opposed to split hairs on semantics. On the concept that the areas have been sprayed and possibly don't require sprinkler protection, that doesn't omit the square footage from existing. To me it doesn't seem much different than deleting the square footage of bathrooms under 55 square feet on dwelling units. Just my $0.02 MPG -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Geoff Dyce Sent: Wednesday, August 12, 2009 10:20 AM To: [email protected] Subject: attic We have an attic that is 53,000 sq ft. 3000 sq ft has been sprayed with fire retardant. (dormers and eves) Can we say we have 50,000 sq ft or is the area still considered 53,000 sq ft?? 2 dry systems vs 1 dry system?? Geoffrey H. Dyce Operations Manager/NICET IV DELTA Fire Sprinklers, Inc. A Veteran Owned Small Business Ph: 407-328-3000 ext 143 Fx: 407-575-9991 E-Mail: [email protected] _______________________________________________ Sprinklerforum mailing list http://lists.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 http://lists.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 http://lists.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)
