Starboard Gets Pink!

Today was primarily spent adding rigid foam insulation to the starboard side.  (I know that yesterday I said the preparations for the side were complete, but I neglected the foam fill.)

The concept of the structure is that rigid foam fills the cavities between the relatively thin plywood sides, and between the inner and outer ceiling/roof plywood.  This creates a sandwich, improving the structure and, as a side consequence, insulating and reducing any drum skin effect of the 1/8" birch plywood on the ceiling.  Note:  there will be a double layer of the 1/8" birch ply on the front/roof.

We used 3/4" thick rigid foam in two layers for simplicity.  Recall from previous posts that some wall cavities are uninterrupted volumes, while others have either a cleat on the inside to support attached shelves/counters, or have a T-shaped vertical member where the inside face is backed by a 2-1/4" wide piece but the outer face only has a 3/4" member.

Using two layers of 3/4" foam allowed us to deal with these vagaries.  Further, when we do the curved ceiling, the 3/4" foam will bend much more easily to the profile desired without kerfing.

Here is the completed side: