I don't like the idea of an enclosed space without the ability to air it out. Any humidity that somehow finds its way into this space will have a hard time coming out. If your inside coat is at all porous, the humidity will probably find the weakness and eventually do damage.

While I don't expect this would do any harm right away, over the years, it could become a problem.

> I am nearly finished with a osprey standard and was thinking of putting a
> plywood bulkhead aft and a minicell bulkhead foreward and not putting
> hatches in until later. Is it a bad idea to put the bulkheads in without
> having hatches?