[RE-wrenches] Metal roof

Mon Oct 19 11:23:04 EDT 2020

I would say it was the metal itself. It was torn, so the clips that hold
the metal to the roof held, at least long enough for the metal to tear. It
is completely plausible that the point load was too high from too few
clamps.

On Mon, Oct 19, 2020 at 8:16 AM Will White <will at solarenergy.org> wrote:

> It's interesting that you experienced this as I've always told customers
> that the roof will come off the building with the array attached before the
> array comes off the metal roof. Sounds like the issue was with the
> attachment (or lack of) between the roof and the building.
>
> Thanks,
> Will
>
>   --
> *Will White*
> Curriculum Developer
>
>
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> .
>
>
>
> On Sun, Oct 18, 2020 at 5:41 PM Jason Szumlanski <
> jason at floridasolardesigngroup.com> wrote:
>
>> I would add that S-5s are only as good as the roof. We saw a large system
>> (not ours) that ripped the metal right off the roof during Hurricane Irma.
>> It literally tore the meta. The panels, rails, and S-5s were still
>> connected, sitting on the ground with chunks of metal roofing still
>> attached to the S-5s. It was quite the mangled mess. We salvaged quite a
>> bit, but the client built a ground rack after this.
>>
>> To be fair, this was a totally exposed beachfront home. I don't know what
>> the spacing was on the clamps, either.
>>
>>
>> On Sun, Oct 18, 2020 at 12:00 PM Jerry Shafer <jerrysgarage01 at gmail.com>
>> wrote:
>>
>>> Wrenches
>>> I think what you said is totally true,"its only as good as the
>>> instalation" but here is where l differ, S-5's if installed correctly are
>>> no different than anything else installed on the roof.
>>> Jerry
>>>
>>> On Sun, Oct 18, 2020, 8:42 AM Dave Angelini Offgrid Solar <
>>> offgridsolar at sti.net> wrote:
>>>
>>>> The S5 is only as good as the installer. I have seen them come off with
>>>> a string of panels on an insurance inspection I did.
>>>>
>>>> I billed them and made another note in my journal of why the only thing
>>>> that should go on a metal roof is rainwater.
>>>>
>>>>
>>>>
>>>> *Dave Angelini Offgrid Solar
>>>> "we go where powerlines don't"
>>>> http://members.sti.net/offgridsolar/ <https://mailtrack.io/trace/link/b0e6d73847b0d7d442ccbc699ac04d43af439126?url=http%3A%2F%2Fmembers.sti.net%2Foffgridsolar%2F&userId=1613865&signature=605126a0d342965b>
>>>> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
>>>> text 209 813 0060*
>>>>
>>>> On Sat, 17 Oct 2020 21:37:07 -0400, Hilton Dier III <
>>>> hiltondier at gmail.com> wrote:
>>>>
>>>> I'm with Jerry Shafer on this one. S-5 clamps with rails work well
>>>> without punching holes in the metal roof. If the roof is fastened well to
>>>> beefy steel C channel it should be fine. The S-5 clamps themselves are
>>>> stronger than the roofing.
>>>>
>>>> --
>>>> Hilton Dier III
>>>> Missisquoi River Hydro
>>>> Renewable Energy Design
>>>>
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>
> --
> *Will White*
> Curriculum Developer
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>
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