The reason I glued the cross beam on at this early stage was so I could remove the log wall for texturing and painting.
So far so good. One of my foam cuts was not so square though. And it happened to be on one of the sides that will need to butt up to another fort section. I trimmed a little shim of pink foam and glued it in place to try to true it up.
And then a thin layer of lightweight spackling to seal the deal.
I'm going to let this dry and resume tomorrow.