Glad it worked!!You win the prize for being the funniest and most enthusiastic poster. Here's how it went.
I used flexshot after pulling out the old rubberized caulk and it works like a charm. It's pretty uneven between the bottom of the coop and the concrete so I just squished in extra where the gap was wider. a few days later we had a slamming down rain like we do here and there were only little pinholes that I needed to fill more. Try to imagine how after more than a year of walking in after a rain and seeing soaking wet litter after trying a million different things, the change when I walked into the coop and it was dry. I almost cried. Now that I know it works I can go around and just spot apply where water seeps in. This stuff is incredible and changed my life! No kidding!
And.....It works on all kinds of stuff. And it comes in all kinds of formulas. Like spray paint. And liquid. I'm stocking up and flexsealing everything I own
Big hugs from Ruskin Florida ‼‼‼‼