Insulating And Weather Stripping The Attic Hatch

Wash rinse and repeat until you have added at least 4 of foam board but preferably 8 of foam.

Insulating and weather stripping the attic hatch.

Once you have the appropriate materials you can start the process of sealing and insulating the attic hatch. To guarantee a good seal i paired sash locks with a gasket of foam weather stripping around the frame of the attic hatch. Attach the pieces of foam board to themselves and then attach them to the hatch. Carefully pull down the finish trim.

To insulate an attic hatch you need weather stripping rigid foam board and fiberglass batt insulation. Insulating the hatch cut foam board to 1 2 less than the size of the hatch on each side. The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners. If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening.

Apply a bead of glue to it and attach it to the plywood hatch. Access shall be provided to all equipment which prevents damaging or compressing the insulation. Install the weather stripping onto the hatch or on the inside of the trim. Cut four pieces of polystyrene rigid insulation about 1 2 inch smaller than the dimensions of the hatch.

Air seal the trim the first step is air sealing the finish trim and enclosure around the attic hatch. How to insulate and air seal an attic access hatch. The insulation will both slow heat loss and add ballast to the hatch to improve the seal at the weatherstripping. Sealing the attic hatch or door finish up by sealing the access hatch with self sticking weather stripping.

Cut two pieces of foam board that are about 1 4 smaller than the hatch. My apologies for the lack of photos but you can surely imagine how it works glue layers of insulation to hatch. When the sash locks are rotated in use they form an air tight seal with the foam weatherstripping. Foil faced polyiso is the greenest and best performing of the foam options.

Insulate the hatch remove your existing attic hatch and measure its size. Access doors from conditioned spaces to unconditioned spaces e g attics and crawl spaces shall be weather stripped and insulated to a level equivalent to the insulation on the surrounding surfaces.