Double Wall Construction
High Insulation Values – No Thermal Bridging – Quiet!
Insulation is Cheap – Loosing Heat isn’t.
Additional labor, Additional Framing Material, Additional Insulation will be necessary The energy saving vastly outweighs the upfront costs of adding a second wall.
You will notice in this photo, the studs do not line up. This offset helps mitigate heat transference from one stud to the other (from inside to outside).