The symptoms of the problem were that the Fireplace Den was 5-10 degrees colder/warmer than the rest of the house depending on the season. The problem was caused by not having the exterior top plates air sealed, previous blown fiberglass was not blown all the way to the eave and the vertical wall inside the garage that was adjacent to the attic of the Fireplace Den was insulated with a loose fill of fiberglass that had settled.
Fiberglass Insulation
Existing loose fill insulation
Air Sealing
Once insulation is removed, air sealing all penetrations and new rafter baffles are added
Insulated foam board
SilverGlo Foam Board and ZypFoam Sealant used to maintain a vertical wall divider
