attic door insulation

The swing down door with the access ladder to the attic is constructed out of 1/2″ plywood and was not insulated. This means there was a 30″ x 50″ “hole” in the attic insulation. I decided that attaching rigid insulation to the door was an easy solution that would improve the situation. We had a sheet of 1″ rigid styrofoam on hand. This has an R value of about 5. It was a pretty straightforward process of cutting the insulation with a knife and gluing it to the attic door with construction adhesive.

Rigid insulation cut and glued to attic door while allowing clearance for the ladder to function properly.

1″ was the max thickness of insulation that would fit between the ladder and door. Ideally, polyiso insulation with R 8 per inch would have been used, but I had the extruded polystyrene on hand. The next step will be to fashion some sort of insulated door in the attic that can be closed before putting the ladder up. This would allow for a lot more insulation to be added as this is still a weak spot in the overall attic insulation.

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About thomas

I'm currently a graduate Water Resources Engineering student studying at the University of Guelph in Ontario, Canada. I completed a B.S. in Geosciences last year at the University of Montana, while taking additional courses in energy technology and history. I have a strong interest in renewable energy and resource conservation, and plan to continue pursuing interests in this area.
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