improving dormer insulation from the exterior

I have a 25 year old house with a timber frame and SIP roof system and (5) stick-built dormers.  We are on the coast of Maine, Bar Harbor area.  While… I have a 25 year old house with a timber frame and SIP roof system and (5) stick-built dormers.  We are on the coast of Maine, Bar Harbor area.  While…Read MoreGreenBuildingAdvisor