I'm looking into mounting a vertical (20 meters and higher freq) on a new
patio cover. The cover is made out of 6 inch by 16 foot aluminum channels
that interlock edge to edge across a 20 foot width. Each section is powder
coated (aka...."painted"), so the sections are most likely not well
connected electrically to each other.

I'm considering a 10 foot long H shaped metal structure lying on the cover,
with the antenna mounted in the center of the H. Radials are a possible but
not desired approach. Any other suggested methods of mounting the
antenna/etc.?
--Wayne W5GIE