The foam doesnt hold much heat from what Ive noticed. Great to walk on barefoot, stuff is damn near indestructible. Just doesnt like gasoline (will bubble) or oil (stains). Im sure theres a way to get the potato chip oil stains from the kids out of mine lol. I was anti-carpet so my floor is all hydroturf, but I did not do the gunnels - admiral shot that idea down.
A few notes… leave your roll of hydroturf opened up in the sun for a few days to pre-shrink it. I put mine right onto the boat and have 1/8” cracks where the seems met. Sun exposure made it shrink just a tiny bit.
Tuck the edges under the trim if possible to hold it in place better.
Spray an adhesive on the adhesive that comes with it so it actually sticks well. I used gorilla spray glue, anything like that will work.