When we see over framing, we usually have to ask for the access hole and then they make it as small as possible. Usually that means smaller than a return air register in a ceiling. Unless the fire originates under that hole, there is no way that you'll have both levels going off at once, and even then, after the first "Above" sprinkler goes off, the dormer will cool to the point that a fire below will not set off additional sprinklers without burn thru of the plywood.
JMHO Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, May 08, 2009 11:39 AM To: [email protected] Subject: Re: wood frame attics It's more like a cloud ceiling. There is more of a potential for sprinklers to open both above and below Besides, there is no separation that would allow any of the sprinklers to be omitted per 13. ------Original Message------ From: Fletcher, Ron Sender: [email protected] To: [email protected] ReplyTo: [email protected] Sent: May 8, 2009 9:50 AM Subject: RE: wood frame attics Why would the sprinklers under the plywood have to be included in the remote area? Isn't it like putting a head under a duct or some other obstruction? Ron Fletcher Aero Automatic Sprinkler Phoenix, AZ 85024 _______________________________________________ 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) Sent from my Verizon Wireless BlackBerry _______________________________________________ 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)
