"Jonny" wrote in
ink.net:

Bear in mind the horizontal continuous wind causes simlar affects that
a topmost horizontal surface may have due to moisture disturbance of
the surface.

Caulk the heck out of every joint, crevice, or whatever. Use caulking
that is flexible with the weather and takes paint and primer well. If
you do well here, most any famous brand paint or primer will work
designed for outdoor use. I use Sherwin Williams paint/primer myself.


Use caulking that is flexible with the weather and takes paint and
primer well.


Paintable silicone or polyurethane would be my first thought. Yea maybe
5 bucks a tube but probably only need one or two.