Foam insulation question for 100-year-old brick home
The attached illustration depicts the current condition of my wall. The plaster and the lathe is currently removed from the wall.
What I’m thinking of doing is spraying 1/2 to 1 inch of closed-cell foam along the inside of the stud and on top of the sheathing, which will serve as a vapor barrier. The remaining space will be filled with fiberglass insulation, and topped by 5/8-inch of drywall and latex paint.
Another option would be to spray low-density insulation between the brick and wood sheathing by drilling holes in the sheathing.
I’m currently looking for the best way to handle insulating my wall in its current condition, and would appreciate any suggestions you may have.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part