[RE-wrenches] Working on metal roofs.

[Darryl Thayer]

Jesse Williams approach is excellent , except for disassembly after the job is 
finished on a 12/12 pitch.  You will not be able to walk the roof or the roof 
ridge.  if you fall will have no way to slow this the free fall of the eve.  


Also depending upon the roof some metal roofs you can not stand without 
buckeling the roof.  (some comerical or barn type roofs are mearly supported by 
the perlongs 

DT  




________________________________
From: Jesse Dahl <dahlsolar at gmail.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Mon, May 9, 2011 1:21:12 AM
Subject: Re: [RE-wrenches] Working on metal roofs.


Thanks DT!  



I'm thinking chicken ladder for that upper roof work.  Have you used ladder 
hooks?


Jesse
Sent from my iPad!!!

On May 8, 2011, at 12:41 AM, Darryl Thayer <daryl_solar at yahoo.com> wrote:


working on metal roofs is difficult because you have no friction, working on a 
12/12 is a close to impossible as it can get.  I like to use scaffold and of 
course safety rail such that you are safe at the scaffold level.  Scaffold needs 
to be tied off or braced to prevent toppling when ou place a ladder on to it.  
Even if you use a chicken ladder have a work platform underneath.  the work 
using harness if so difficult you use all your strength just staying there.  
There are scaffold systems that are designed for latteral force check with your 
supplier.  I find that working off a JLG is difficult also.  

>
>BTW there are at least three types of standing seam, most types can be handled 
>using Snap-NRack hardware, but get the standing seam profile first.  
>
>
>Remember you are to use every seam, to place clamps and use rails to tie the 
>clamps to the modules.  I find that this is easier than the rail-less system.  
>
>
>A ladder is not to be streched at 45 degrees.  ground to roof.  When tie off is 
>used for fall protection remember swing fall and rescure plan.  
>
>
>Darryl
>
>
>
>
________________________________
From: Jesse Dahl <dahlsolar at gmail.com>
>To: "RE-wrenches at lists.re-wrenches.org" <RE-wrenches at lists.re-wrenches.org>
>Sent: Sat, May 7, 2011 7:21:43 PM
>Subject: [RE-wrenches] Working on metal roofs.
>
>Wrenches,
>
>I will be installing multiple arrays on metal roofs at a local community college 
>and am wondering about tying off.  Most of the work will be done off of scaffold 
>and JLGs, but there will be times I will have to access upper portions of the 
>roof.  I am looking at two arrays that will be installed on standing seam roofs 
>both with a 12/12 pitch.  
>
>
>How have people been working safely on roofs like this?
>
>
>
>As always, I really appreciate all the help.
>
>
>
>Jesse
>
>Sent from my iPad!!!
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