[RE-wrenches] Expansion on conduits on commercial roof tops!

[Darryl Thayer]

use a mini bolt the mini to b-line and use mini that is to large and when tight will allow the conduit to slide.  also I have used a B-line clamp that was ment not to slide.  

 

________________________________
 From: James Rudolph <jamesrudolph99 at gmail.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org> 
Sent: Friday, December 23, 2011 7:53 AM
Subject: Re: [RE-wrenches] Expansion on conduits on commercial roof tops!
 

Thanks fellas,
I guess I was not clear. We are using RMC or IMC on all of are roof top runs with the appropriate expansion fittings. I am trying to figure out how to deal with the movement of the conduits at the bases where we strap it down to the base( a curb with a small peice of shallow b-line placed on it (4') ).


On Thu, Dec 22, 2011 at 12:06 PM, Jason Szumlanski <Jason at fafcosolar.com> wrote:

PVC conduit? Search for “Carlon PVC Expansion Fittings.” 
> 
>They publish a good PDF that shows when expansion fittings are required and how to install them properly. 
> 
>Jason Szumlanski 
>Fafco Solar
>  
> 
>From:re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of James Rudolph
>Sent: Thursday, December 22, 2011 9:39 AM
>To: RE-wrenches
>Subject: [RE-wrenches] Expansion on conduits on commercial roof tops!
> 
>Howdy Wrenches,
>
>I was wondering how everybody is dealing with expanding conduits on roof tops? Do we have an accepted best practice on this?. What I am really looking for is a way to starp long conduit runs on commercial rooftops in direct sun that allow movement and expanision joints to do thier job.
>
>Mahalo in advance!
>
>
>
>James B Rudolph
>NABCEP Certified PV Installer 
>
>
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-- 
James B Rudolph
NABCEP Certified PV Installer



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