Batten roofs [RE-wrenches]

[Steve Fain]

Hi Andrew,
	If those battens have any open space inside, crimping something
(like an S-5! clamp) onto them would cause distortion, probably pulling the
copper roof strips on either side of the batten together.  To my knowledge
the S-5! folks don't make a clamp that can accommodate 2" standing seams,
and I haven't heard of anything that will.  At any rate, you'd need to use
brass  between the copper and the racks or module frames----aluminum in
direct contact with copper would melt away in no time from galvanic
corrosion.  Custom brass clamps for 2" standing seams might end up costing
around $60 to $80 each if UniRac made them.  You'd use at least 25 or 30
clamps---more if you're in a higher wind area.  I'll bet those welded
flashings are looking better to you now!

Steve Fain
Customer Service/ Tech Support
UniRac, Inc.
1411 Broadway Blvd. NE
Albuquerque, NM   87102-1545
Ph:  505-242-6411 ext. 21
Fx:  505-242-6412
Email:  sfain at unirac.com
Web:   http://www.unirac.com
 
 
-----Original Message-----
From: Andrew Truitt [mailto:atruitt at gmail.com] 
Sent: Tuesday, February 27, 2007 8:14 PM
To: RE-wrenches at topica.com
Subject: Batten roofs [RE-wrenches]

Does anyone know of a non-invasive method for mounting L-feet to a
copper batten roof?  The battens are 2" x 2", 22" o.c. and sit on 3/4"
ply with 2" x 4", 24" o.c. framing.  Our roofer will only warranty
roof penetrations if he can use 6" welded flashings which would cost a
lot (10 kW system) and would raise the profile more than we would
like.  We are basically looking for the equivalent of S-5! clips for
2" wide standing seams.

Thanks in advance for any help because I am stumped!

-- 
Andrew Truitt
System Designer/Lead Installer
Standard Solar Inc.
15200 Shady Grove Rd. Ste. 202
Rockville, MD 20850
Office: (301) 296 - 4373
Cell: (415) 290 - 8240
Fax: (301) 296 - 4548
andrewtruitt at standardsolar.com


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