[RE-wrenches] Rooftop wiring methods between multiple subarrays
R Ray Walters
ray at solarray.com
Fri Oct 9 16:21:57 PDT 2009
EMT needs to be "pickled" with vinegar or acid, to get the paint to
hold. I love it for inland work, but near the ocean, it'll rust
through in 5 years. I'm not sure how much more time paint would buy you.
Anybody use other plastic materials HDPE? Supposed to not have the
expansion problems of PVC.
R. Walters
ray at solarray.com
Solar Engineer
>
> If you have to run around the roof with EMT, you can protect it from
> rust
> with a coat of paint.
>
> Regards,
> -Hans
>
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