Walls and Roofs
The easiest way to insulate walls from the exterior in older homes
...foam if you choose (spray foam is our least favorite but it can be done so we mention it, though we always encourage readers to choose spray foam with the safest blowing agents)
Larsen truss walls can be made in a variety of thicknesses, which is a really nice advantage to the design as it can be done in a way that ha...