s!5 Clamps [RE-wrenches]

[Chris Meier]

Hi Kirpal

	The biggest issue with S-5 usage is testing. At this point there
is limited testing on different roofs using a pull off testing
procedures. The listed testing on the S-5 website is pulling along the
seam. What we have found is the pull off is much more critical than was
ever imagined. Because of this I can say we have pulled on several roofs
but the one with the most testing from us is the Butler SMR 24. But you
need to use an S-5 with two set screws to achieve a usable strength.
This roof allows for 500 lbs of design strength if you pull between the
roof clips at a 48" roof clip spacing. The best design is to set the
roof clip spacing to the same spacing as the S-5 this will allow the
loads to be transferred direct to the roof clips an into the structure.
Our engineering is based on an S-5 that is 2.5" long this seams to
spread the set screws apart enough to give use better results.  

Chris Meier

Product Manager

UniRac, Inc.

1411 Broadway Blvd. NE

Albuquerque, NM   87102-1545

Ph:  505-242-6411 

Fx:  505-242-6412

Email:  chrism at unirac.com 

Web:   http://www.unirac.com

 

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-----Original Message-----
From: Kirpal Khalsa [mailto:solarworks at gmail.com] 
Sent: Friday, March 21, 2008 9:16 PM
To: RE-wrenches at topica.com
Subject: s!5 Clamps [RE-wrenches]

Happy spring to all......
I am looking for some advice on any brands and models of "standing
seam" roof folks have had good experience with......I know many
different versions work better than others....we have done a bunch of
jobs with different models.....some we have had to crimp a bit - not
ideal......others work very smoothly....just wondering if any one had
any direct recommendations........this time the customer is going to
install the standing seam roof just to accommodate the penetration
free solar......I love it when the solar folks get to participate in
the whole design process.......now this is a solar revolution!!!!
Thanks in advance

-- 
Sunny Regards,
Kirpal Khalsa


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