This home owner has a cantilever which was insulated incorrectly. They were complaining about having cold floors in their brand new baby's room. Upon just walking up to the house we were sure we had the culprit. This is like having an opening across the entire front of the house. When it got down to 18 degrees and windy, a 3/4" piece of plywood was the only thermal barrier. The solution was an R-20 foam board stopping any air infiltration and keeping the heat in the house. The homeowner was thrilled! So easy yet so effective.