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 <dahlso...@gmail.com>
To: "RE-wrenches@lists.re-wrenches.org" <RE-wrenches@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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