[RE-wrenches] Roof-mounted j-box

Jason Szumlanski jason at floridasolardesigngroup.com
Wed Jul 12 14:03:00 PDT 2023


I can't speak to longevity since it just came out, but EZ Solar just came
out with a pretty interesting rail-mounted j-box option that clamps to the
rails with hose clamps. It sounds strange at first, but in practice I found
the samples to work very well.

Check out their JB-3 model. https://ezsolarproducts.com/jb-3/
<https://mailtrack.io/trace/link/4d59dfa6a10949790e994afe159cc0815d8d6dc0?url=https%3A%2F%2Fezsolarproducts.com%2Fjb-3%2F&userId=1613865&signature=569968a271fa537e>

We have had good success with their JB-1 and JB-2 boxes for shingle and
tile roofs, respectively.

I can attest from lengthy experience in solar pool heating that stainless
steel hose clamps hold up very well in pressure pipe applications on roofs.
I can't see why they wouldn't work in this application. I wonder about the
grounding of all metallic parts and if an inspector might ding you for the
hose clamps, but I think that would be a stretch to cite that as a code
violation or a safety issue.

Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956


On Wed, Jul 12, 2023 at 4:32 PM Rebecca Lundberg via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> What's currently your best long-lasting and safe solution/product(s) for
> transitioning from PV wire to wire in conduit on a residential pitched
> roof? The system I have in mind is on a 6/12 metal roof, in case that
> matters. Thanks in advance!
>
> Rebecca Lundberg
> _______________________________________________
>
>
>
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