I have stopped condensation of single
pane windows on my catamaran
by using double sided tape and plastic shrink wrap window coverings on the inside while wintering in the damp and chilly Beagle Channel winter. When back in the warmer parts
, I simply took them off and used some acetone to clear off the glue from the interior vinyl liners.
I also had a friend with a Marine
with the same condensation problem and some leaking on the sliding glass panes in the PNW. They had a canvas
maker make plastic windows and canvas
for the outside of the windows, a bolt rope
slide for the top edge above the window and snaps around the other parts
. This being on the outside, they did not have to modify the interior teak work
and it prevented condensation and leaks
and stopped the damp from staining the wood and interior.