Hi Joe,
The gasket had adhesive on one side. Just applied it to the rim. Has the additional benefit of softening the blow if someone drops the hatch cover!

________________________________
From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of Joe Dempsey <joedempsey at hughes.net>
Sent: Thursday, October 28, 2021 5:34 PM
To: Rhodes 22 Email List <rhodes22-list at rhodes22.org>
Subject: [Rhodes22-list] Hull Thickness

I don't believe it's structural because it'd dry most of the time. It's not
from "railing" the gunnel because it's fresh water. Definitely coming from
the cockpit area. I believe overflow from heavy rains which we get here on
the Chesapeake in Spring, late Summer and NOW. Second heavy rain in a week.
It's what you got in New England earlier this week. Thanks for the input. I
like the idea of the "gasket" around the hatch cover.  John, did you apply
it to the cover or to the rim? I've actually got some automotive gasket tape
that I could try.