You can add insulation and weather stripping to the door you have.
How to insulate attic crawl space door.
Add foam insulation tape around the edges to seal the perimeter where it rests in the access hole.
This effectively insulates the crawl space itself as opposed to insulating the home from the air in the crawl space.
Add fiberglass or rigid foam board to back of hatch.
Concrete block brick and even stone.
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.
Rigid foam insulation works for any type of masonry wall.
Here s one good method.
First install foam weather stripping on the inside of the trim or directly onto the hatch.
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.
To insulate an attic hatch you need weather stripping rigid foam board and fiberglass batt insulation.
Foam board insulation is attached directly to the exterior structure walls of the crawlspace.
After you have replaced the weatherstripping you ll want to cut a piece of fiberglass or rigid foam board to size and nail or glue it on the back of the hatch door.
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.
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.
Insulating a crawlspace 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.