On Apr 11, 9:56 pm, "diablo" wrote:
I have a pole barn that has a galvanized corrugated steel roof. Last year
the roof started to get some rust in a few spots. After this winter there is
a lot of rust showing on the roof.

Is there any roof coating that will either slow down or stop the rusting? I
don't want to replace the roof at this time and would like to try and cover
it up as well as stop or slow the rusting down.

....

A couple of choices...if it is indeed just simple corrugated, can take
it off and turn it over and have a whole new side. The other basic
alternative is to use one the rust converter products to stabilize the
rust and then, optionally, paint. There are a bunch of online
suppliers available. I posted some links not too many months ago to
the same question. Look for farm product suppliers can help to locate
some less expensive alternative sources for sizable volumes than most
of the "regular" channels. Your local farm supply/farmers' co-op may
well have it in stock, in fact.