Measure the insulation a bit bigger than the hatch so it creates a seal when shut.
How to insulate attic hatch cover.
Attach foil insulation board to the back of the attic hatch panel.
Cut two pieces of foam board that are about 1 4 smaller than the hatch.
If you have pull down attic stairs or an attic door these should be sealed in a similar manner.
Foil faced polyiso is the greenest and best performing of the rigid foam options.
A quick way to tell if you have insufficient insulation is by heading into the attic with a measuring stick and measuring the depth of your insulation.
Several layers should be applied.
Weatherstrip the edges and put a piece of rigid foam board insulation on the back of the door.
Insulate the hatch cut foam board to 1 2รข less than the size of the hatch on each side.
I used 1 board which has an r 6 5 insulating value.
Place the fiberglass insulation paper side down onto the scuttle hole cover and press firmly on all areas where it meets the glue.
Do i need more attic insulation.
Apply a bead of foam compatible glue to it and attach it to the plywood 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.
Don t forget about insulating the attic hatch access door.
Gaskets are generally more durable and produce a tighter seal.
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.
Cut a piece of fiberglass or rigid foam board insulation the same size as the attic hatch and nail or glue it to the back of the hatch.
Attach the pieces of foam board to themselves and then attach them to the hatch.
First install foam weather stripping on the inside of the trim or directly onto the hatch.
Affix the fiberglass batt insulation to the top of the foam board.