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RE: Steel Roof Decking

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16 gage seems very heavy. What is happening to this roof? Lots of in plane load, uplift, heavy snow?
I have used 2 layers in part to locally remedy some special situations that I don't remember what they were. I think putting the both of them together can be very costly if they are both expected to work as a diaphragm or to support uplift.
-----Original Message-----
From: Chris Towne [mailto:ctowne(--nospam--at)]
Sent: Monday, August 07, 2000 8:23 AM
To: SEAINT List Server
Subject: Steel Roof Decking

I specified a 16 gage roof deck for a job and the contractor says that he cannot get it.  He wants to know if he can use 2 layers of 18 gage deck?  I think this would be ok if the two layers were bonded together by welding or other acceptable means.  What do you think?
Chris Towne
Chapman Technical Group
St. Albans, WV 25177