Re: what glue for attaching foam insulation to the cabin interior?
We did the overhead in our previous vessel....31 foot, lots of curves and had to grind off the foam left by the old cloth on the overhead. An ugly job.
We insulated with the pink foam panels you can get a Home Depot. We cut with a box cutter to let it bend in the boat and glued up with Liquid Nails. We also put up wood lathe with the Liquid Nails to tack up vinyl covering for the overhead. The foam was between the lathe strips. You need wood to act as holders for the Liquid Nails to set so the boat looked like a stick forest as pieces were set up and cured.
I was able to sew the vinyl pieces so they fit exactly to the shape of the boat's coach roof. The over head vinyl was then tacked up with a staple gun, securing into the wooden lathe strips. Varnished finish strips were then put up covering the stapled vinyl using phillips head screws.
The whole job was a killer but very worth the effort. Totally changed the appearance of the vessel's interior. The insulation was even better than the appearance. We were cooler in the summer and warmer during the cold months. A very worthwhile project. Worst part is grinding off that glue and foam before you can start.
Good luck with your project.
s/v Tango, Cabo Rico 34
Lankford Bay Marina
Chester River, MD