Author |
Message |
Ronald L. Geren, RA, CSI, CCS, CCCA, MAI Senior Member Username: specman
Post Number: 247 Registered: 03-2003
| Posted on Friday, May 05, 2006 - 02:07 pm: | |
I'm reviewing a set of documents where hat channel is indicated to be installed horizontally for attachment of vertical copper panels. The problem is that the hat channel is attached through the exterior sheathing (with a spray-applied air barrier) to the vertical studs. Essentially, any moisture that gets behind the copper panels to the air barrier will be blocked from draining by the hat channel. This is in the extreme, dry southwest, but I'm concerned, regardless. Is there a "drainable" hat channel? For those in moisture-prone areas, have you encountered this condition before? Am I overly concerned? Thanks. PS: The copper panels and steel hat channels are separated by rubberized asphalt for cathodic protection (I just knew somebody would have brought that up). |
Ralph Liebing, RA, CSI Senior Member Username: rliebing
Post Number: 369 Registered: 02-2003
| Posted on Friday, May 05, 2006 - 02:58 pm: | |
How about suggesting an innovative use of double-leg resilient channels, like Dietrich's RCDN/RCDE, with perforations down? |
Ronald L. Geren, RA, CSI, CCS, CCCA, MAI Senior Member Username: specman
Post Number: 248 Registered: 03-2003
| Posted on Friday, May 05, 2006 - 03:08 pm: | |
That just might work. I'll propose that. Thanks, Ralph! |
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