Apply a bead of foam compatible glue to it and attach it to the plywood hatch.
How to build insulated attic hatch.
To insulate an attic hatch you need weather stripping rigid foam board and fiberglass batt insulation.
Insulating the attic hatch here s a real quick solution.
Since the weather is getting colder by the day up here in the northern hemisphere i had to qu.
When you have four pieces cut glue them together with a construction adhesive designed to work with foam and then glue that entire foam block to the backside of hatch panel centred as it is here.
First install foam weather stripping on the inside of the trim or directly onto the hatch.
I used 1 board which has an r 6 5 insulating value.
Add fiberglass or rigid foam board to back of hatch 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.
Attach foil insulation board to the back of the attic hatch panel.
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.
Several layers should be applied.
Foil faced polyiso is the greenest and best performing of the rigid foam options.
This foam should be cut to the outside dimension of your attic access hatch box that you have pre assembled.