Please call them and tell them I am on the way
Rahe Loftin ----- Original Message ----- From: "Thom McMahon" [EMAIL PROTECTED] Sent: 05/06/2008 02:00 PM CST To: [email protected] Subject: Re: Residential Sprinklers and Beam Obstructions Never worry about the AHJ's insurance, they don't need it. As far as ours goes, what is outside the scope of 13D, and is approved by the AHJ, is all we really need.(Or at least the best we can hope for.) Just like those pesky 10/12, 12/12, 16/12 beamed sloped ceilings, sauna's, elevators, elevator equipment rooms, or the two thousand other things 13D never considered in residences. Basically unless a new listing procedure has been accepted, anything but a flat smooth ceiling is outside the listing of residential heads. I don't know what deal the mfg's use to list for 4/12 or 8/12, but it's not an actual test, I believe its just an interpolation of data.(Someone correct me if I'm wrong?) The Insurance companies money was meant to be spent somewhere, if not then our premiums would be a lot less. Thom McMahon Firetech, Inc. 2560 Copper Ridge Dr Steamboat Springs, CO 80488-2136 Tel: 970-879-7952 Fax: 970-879-7926 ----- Original Message ----- From: "Mike Brown (TECH- GVL)" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, May 06, 2008 12:58 PM Subject: RE: Residential Sprinklers and Beam Obstructions The NFPA 13D Committee in their wisdom (or as some people have suggested lack thereof) put in the 2007 Edition Paragraph 8.1.3.1.2 "Where construction features or other special conditions exist that are outside the scope of sprinkler listings, listed sprinklers shall be permitted to be installed beyond their listing limitations." I hope that you and the AHJ have good insurance or a lot of money. Michael L. Brown Manager of Technical Services The Reliable Automatic Sprinkler Company, Inc.' [EMAIL PROTECTED] www.reliablesprinkler.com (864) 843-5228 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thom McMahon Sent: Tuesday, May 06, 2008 2:03 PM To: [email protected] Subject: Re: Residential Sprinklers and Beam Obstructions Bob: We run into this all the time. First question are the beams structural? If the beams are decorative only drill the beams use your concealed heads and space as normal. While the beam rules for TYCO are ok, they have a lot of situations where you would have to tell the Arch. how to layout the beams before hand.(Like that's ever going to happen!) If you read the white paper for slope Beam ceilings exceeding 8/12 you'll see that the concealed sprinklers responded slightly better when in the beams than in the pockets. If this is true on a steep slope ceiling it should be reasonable to apply it to flat beam ceilings. (With heads in the beams less than 12" below the actual flat ceiling, we usually use the flows for 8/12 slope to offset any delay for the lower position of the heads,) All our AHJ's are OK with this. If your beams are structural, good luck getting the Arch. or Structural Eng. to let you put a 21/2" hole vertically thru a structural member. Then we usually end up with heads in every pocket, because you can't center a head and still get far enough away from the beams to spray under them. Good Luck! Thom McMahon Firetech, Inc. 2560 Copper Ridge Dr Steamboat Springs, CO 80488-2136 Tel: 970-879-7952 Fax: 970-879-7926 ----- Original Message ----- From: "Bob Knight" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, May 06, 2008 10:51 AM Subject: Residential Sprinklers and Beam Obstructions
I'm working on a home (13D) that has several rooms with the ceiling broken up by "beam pockets". These vary in width from 2'8" to 3'3" o.c. with the beams being 6" deep. Concealed residential sprinklers are being used. In one room, which is 224 sf, if I place a sprinkler in every pocket like I think I should, there will be 13 sprinklers. This averages out to 17 sf per head. Another room is 375 sf and will require 10 sprinklers. This averages at 37.5 per head. In rooms of this size do I really need a sprinkler in every pocket? Can a sprinkler be placed in every other pocket and be acceptable? Has anyone else found a better way to protect rooms like this? Any and all suggestions will help. Thanks, Bob Knight, CET (208) 318-3057 [EMAIL PROTECTED] www.firebyknight.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
