I need to build an entry door for a small astronomical observatory that
I am constructing in Maryland. The door will be only 32-1/4" wide by
45" tall (as the wood-frame base upon which the telescope dome will
rest is only 48" tall).
I would like for it to be a frame-and-panel door (two vertical panels)
of solid mahogany.
The problem is that the door exterior will be fully exposed to the sun
and elements. It will face southward, getting the sun all day long.
Summer-winter temperature changes are fairly extreme in Maryland.
My concerns are water getting into the joints where the panels rest in
the grooves and finding a finish that will stand up to the sun. I used
a very expensive spar varnish when I refinished an exterior wood door a
few years ago and it lasted about a year.
Advice most welcome.
usenet *at* davidillig dawt com