Before i open the can of worms, i thought i would channel some insight here. My Gal has leaky port lights. Well the 4 non opening portlights have leaked at some point you can tell from the wood damage. Currently only the one over the nav table leaks from the glass at the bottom and drips off the screwhead when it rains. The weird thing is the windows are sealed off on the outside with plastic and taped shut. I'm worried its leaking from higher up and running in the deck to the window. Moisture was scanned at survey with low readings. From reading others posts, my current thought is to replace the portlights with Lewmar size 1 and open the holes up a bit bigger. i would like a out of the box replacement but dont really find any options except Bomon in Canada but its $$$$. Anyhow, last time to the boat i tightened up every screw in the cabin top i could find. ill find out this weekend if any difference was made. Any thoughts on a possible source for the leak or reasoning why it could leak when sealed outside the boat? Also thoughts on best approach for refurb or replacement of portlights.