Tips any stains that remain on the brick or mortar once the loose material is removed will likely darken after sealing.
How to seal a drafty brick 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.
These door sweeps will seal off the door and prevent air from leaking out of your home.
You can spray expanding foam between the drywall and framing.
The attic can also be a major source of air leaks.
If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening.
Insulating the attic is the best way to seal these leaks.
Seal big gaps around such receptacles with a quick application of handy expandable foam like great stuff.
Then jeff filled those gaps with 2 1 2 inches of foam it green spray foam insulation.
Start by placing door sweeps on the bottom of every door that leads outside.
Cellulose filled the cavity between the framing and the plaster interior walls.
Seal the wall plate where the top of walls meets the floor ceiling joists in the attic to ensure air does not leak at the outer edges of your attic roof.
Jeff used the redwood siding as his starting point fixing 2x3 studs the skeleton into the redwood siding that looked like a grid.
You can do this with expanding foam sealant.
Do the same around the top plates of interior walls underneath the attic floor.