Chris hits on the heart of the matter. What did the architect/engineer intend to use to achieve the rating on the glass wall? We are working on a project with a "rated" glass wall with doors. The plans indicate a water curtain with closely spaced sprinklers so that's what we are doing.
Ron Fletcher Aero Automatic Sprinkler Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Cahill Sent: Tuesday, September 30, 2008 6:03 AM To: [email protected] Subject: RE: Window Sprinklers Cause there is nothing in the code that I am aware of that gives a rating with ordinary sprinklers at any spacing. The 6' comes in about openings in floors and as an alternate in the atriums. These are two specific situations addressed but not a general 1 hr rating. The floor opening has nothing to do with ratings and the atrium needed a solution to rating before the development of the Tyco heads once code officials decided to allow multiple floors to be connected without a traditional rating. Tyco heads are listed and tested to the same standard as other rated construction methods for ratings. It's the same test for sheetrock and concrete. If you have a corridor that requires a rating Tyco heads are the only code complying solution I am aware of if using sprinklers. And to Craig's comment if it's unrated then you don't need any sprinklers on the glass. Of course standard note and discussion point regarding a contractor choosing methods of rating vs. the architect and engineer who should have specified methods. 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 Russell Sent: Tuesday, September 30, 2008 7:21 AM To: AFSA Subject: Window Sprinklers Mornin'. I am bidding a project which consists of an educational facility. Down the center of the building runs an 8' wide corridor. 60' of one of the corridor walls is glass. The corridor walls are fire rated so I am installing sprinklers on both sides of the glass at a max. of 6' spacing. Tyco makes a sprinkler expressly for this use. I can find nothing in codes or standards that require me to use this Tyco sprinkler. Does anyone know of a requirement to use this sprinkler? Why would a contractor choose to use an $80.00 Tyco sprinkler when a $3.00 SSP will do the same job? This makes me concerned that there is one sorta like the CC1 and CC2 sprinkler. Any input will be greatly appreciated. Russell Rewis Brown Automatic Sprinklers, Inc. 107C Hemlock Street Valdosta, Georgia 31601 229-244-8130 [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)
