How do I best insulate my century home from the inside?
...wall cavity. Then insulate with Rockwool batts + Rockwool rigid board over the studs to provide a thermal barrier + Intello (or other) air/vapour barrier to allow breathing/drying + drywall (taped and painted). What insulation should I use in the wall cavity? The top runners are Rockwool batts OR dense packed cellulo...