Air Tight Attic Access
The walls of the assembly also act as a dam to retain blown in insulation in the attic.
Air tight attic access. The walls of the assembly also act as a dam to retain blown in insulation in the attic. Often attic accesses are no more than a piece of painted plywood on a couple of cleats. The single biggest leakiest hole in most houses is the attic access. Tim healey the attic access provides a portal to the attic space while being integral to the red line air barrier.
The access is in the ceiling probably in a closet and no one notices the draft. Or they rarely connect the cold drafts on the first floor of the house with the attic access upstairs. You ll notice in the pictures below that now you. Most homeowners and builders don t recognize how much conditioned air escapes through an attic access.
You ll notice in the photo below that interior door jamb stock does not have any kind of weather stripping in. The finish panel visible from below does not have to be airtight. The finish panel visible from below does not have to be airtight.