How To Insulate Attic Crawl Space Door

Here s one good method.

How to insulate attic crawl space door.

Two inch expanded polystyrene foam board is the favored insulation for crawl space inside walls. You can purchase pre cut attic door insulation material at your local home improvement store or online. Staple long pieces of duct tape sticky side up onto the attic scuttle door. Add fiberglass or rigid foam board to back of hatch.

To insulate an attic hatch you need weather stripping rigid foam board and fiberglass batt insulation. This effectively insulates the crawl space itself as opposed to insulating the home from the air in the crawl space. Concrete block brick and even stone. 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.

Foam board insulation is attached directly to the exterior structure walls of the crawlspace. On the door pictured below i added a 1 foil insulation board to the back of this door adding an r value of 6 5. Short of ripping the door out there is a simple fix you can do to increase the r value. Then add insulation batting to form a pillow and wrap it up like a birthday present as shown.

Rigid foam insulation works for any type of masonry wall. This type of insulation may be faced with silver foil with the foil facing inward toward the crawl space. First install foam weather stripping on the inside of the trim or directly onto the hatch. The access door is in our closet which is fine except the fact that the crawl space has very little insulation and neither does the door.

As you can see using the flame test the door is a little crooked which leaves a gap at the top and the bottom which allows cold air to flow into our closet. Insulating a crawlspace door.