the S-5 solution to standing seam roofs? [RE-wrenches]

[Matt Tritt]

Marco,

The real alternative is Unisolar PVL. No penetrations and no wind
problems.

Matt T

-----Original Message-----
From: marco mangelsdorf [mailto:marco at pvthawaii.com] 
Sent: Sunday, August 10, 2003 10:54 AM
To: RE-wrenches at topica.com
Subject: the S-5 solution to standing seam roofs? [RE-wrenches]

Here in Aloha land we've got a lot of standing seam metal roofs.  Rather
than going down through the flat part of the metal roof to attach PV
mounting hardware into a structural member (i.e., steel z-bar purlins),
one
seemingly attractive option would be to use this S-5 clamp from Dynamic
Fastener.  The S-5 clamp is essentially a machined block of aluminum
which
bites down on the standing seam with a couple of SS bolts.  The mounting
rails are then bolted down onto the S-5 block.  Have any of you all used
this kind of hardware?  Have any of you had any engineering done on it
in
terms of pull-off strength in 80+ MPH winds?  Intuitively, this
attachment
means SEEMS pretty solid especially when the alternative is lots of roof
penetrations into the flat parts of the metal roof.  (FYI: we get an
average
of 130 inches rain/year here in humid Hilo.)  But then doing commmerical
PV
systems based on intuition is not a real smart idea...

aloha, marco

Marco Mangelsdorf
President
ProVision Technologies, Inc.
69 Railroad Avenue, A-7
Hilo, Hawai'i 96720
(808) 969-3281, 934-7462 facsimile
www.provisiontechnologies.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
--^----------------------------------------------------------------