Fitting exterior walls with insulation will reduce heat ... the Rmax Pro boards create a continuous insulation; unlike batts or blown-in insulation, which fill cavities but don’t cover the ...

then add new insulation from the outside, new sheathing and metal siding. A Your plan will work, but depending on the current state of exterior walls, it could also involve a lot of unnecessary work.

Blown-in insulation is relatively easy to install ... Whether you are replacing the insulation in the attic, the exterior ...