If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the.
Plaster repair material for air sealing attic.
When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic.
If you have ducts that aren t sealed you are probably leaking a lot of conditioned air into your attic space.
To repair moving cracks in plaster secure the loose or high side of the crack with plaster washers before filling in the crack rob leanna based on kathy bray although the washers will flatten as the screw is driven into place they will still stand slightly above the wall surface.
Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.
Figure 2 top plates may be missing where a lower ceiling meets the wall of a room with a higher ceiling.
Typically plaster ceiling cracks have two causes.
House settling and temperature or moisture fluctuations in an attic which result in the expansion or contraction of framing members.
The open wall cavities should be closed off with an air blocking material like rigid foam plywood or dimensional lumber that is cut to fit the stud cavity and sealed in place with caulk or spray foam or fiberglass batt insulation that is rolled and friction fit into place and air sealed.