Yep, that's what I'm saying. Of course there are other ways to skin this
cat. Fire rated glass is a $$$$ option but I think the size of each pane is
limited so it wouldn't be confused with a glass wall. This would be code
compliant.
Perhaps an alternate method of compliance is possible with ordinary heads
but that's between the designer of responsibility (EOR) and the AHJ. Note
I'm trying to keep the PE part to a minimum because I know reality sometimes
leaves these things in your lap. And an alternate is not the same as code
compliance technically, practically maybe but not technically.
I'd say a side light with an ordinary head might be something as an AHJ I'd
entertain as equivalent. A 60' wall not a chance. Also I required the
glass wall of this size to be valved separate from the rest of the system
all the way back to the header. Our approval was based on the fact
traditional fire rating is not lost when the sprinklers are shut off for
maintenance or TI's. There is no reason to lose the rating just because
sprinklers (Tyco) are being used instead of sheetrock.
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 8:59 AM
To: [email protected]
Subject: RE: Window Sprinklers
Let me see if I understand Chris, from an architectural standpoint, the
glass wall is not a rated wall unless the Tyco sprinkler is used?
"Cause there is nothing in the code that I am aware of that gives a rating
with ordinary sprinklers at any spacing."
"If you have a corridor that requires a rating Tyco heads are the
only code complying solution I am aware of if using sprinklers."
Chris Cahill, P.E.
Russell Rewis
Brown Automatic Sprinklers, Inc.
107C Hemlock Street
Valdosta, Georgia 31601
229-244-8130
[EMAIL PROTECTED]
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