Check for air leaks and wood stops.
How to insulate attic door cover.
Here s one good method.
Measure the opening for the attic access hole which is often referred to as a scuttle hole.
First install foam weather stripping on the inside of the trim or directly onto the hatch.
Then add insulation batting to form a pillow and wrap it up like a birthday present as shown.
Cut a piece of 3 8 inch or 3 4 inch plywood about 1 4 inch smaller in width and length than the dimensions of the opening.
Add foam insulation tape around the edges to seal the perimeter where it rests in the access hole.
There are different ways to accomplish this.
Staple long pieces of duct tape sticky side up onto the attic scuttle door.
Once you have the materials you can begin to seal and insulate the knee wall access door through these steps.
You can check for air leaks with a lit incense stick or a thin.
Trim four pieces of 1 by 2 lumber with a circular saw to.
Measure the cover to make sure it fits the opening with the cover overlapping the molding lip so the weather stripping seals well.
Cut out two pieces of rigid foam board that are 1 4 inch smaller than the hatch so homeowners can slide the attic access panel open easily.
From inside the attic check for any openings holes or fenestrations into the knee wall surrounding area.
Add fiberglass or rigid foam.
The simplest fix is to attach insulation to the top of the cover and weather stripping underneath where it rests on the lip of the opening.