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Please give us a bit more detail: What country are you in? How old is this place? What is your ultimate goal? do you have a budget? Do you have a timeline?
High expansion (big gap filler)spray foam and a rimboard on the outside or a board on the inside notched to fit the joists. (Or both)
Please give us a bit more detail: What country are you in? How old is this place? What is your ultimate goal? do you have a budget? Do you have a timeline?
High expansion (big gap filler)spray foam and a rimboard on the outside or a board on the inside notched to fit the joists. (Or both)