Cantilever insulation/sealing? | Terry Love Plumbing Advice & Remodel DIY & Professional Forum

Hi. I have a cantilever that extends over my back wall about 12 inches. The rim joist is the outer part of this cantilever. The rimjoist has foamboard on the outside then vinyl siding over that foamboard. The soffit under the cantilever is 2 by wood with seams sealed with caulk and vinyl soffit over it. The inside joist bays of the cantilever have no insulation right now. Do I have to do anything to insulate or seal these joist bays or is the foamboard insulation on the outside enough?