I have access to a large amount of EPS in the form of used multi-cubic-foot blocks (I believe they used to be boat dock floats).
Because of the high R value of EPS, I am thinking about slicing them down to use to insulate the exterior walls of the house I'm renovating. The house is located just southwest of Ft Worth, Texas. This would not be outside the sheathing to prevent thermal bridging, but between the studs, instead of fibreglass or sprayed in foam.
Can I use EPS insulation to insulate inside the exterior walls? If so, what else would I need to consider that more traditional insulation methods already include (e.g. the paper facing on batts)?