Stone, brick or plaster on 3 or 4 sides 2" x 6" or 2" x 8" exterior walls @ 16" centers 2" x 6" or 2" x 8" METAL STUD exterior walls @ 16" centers R-20 exterior wall insulation in 6" walls R-20+ exterior wall insulation in 8" walls R-38 insulation in the Attic space Sound insulation in MB, theaters, baths 5/8" drywall on celings (volume builders use 1/2") Vaulted ceilings Exposed copper duct work Tankless water heaters Radiant barriers |


