Mixing Exterior Insulation types

I’m in NH (CZ 6A) doing an exterior remodel on my 1950 ranch using 7 1/4″ Larsen Trusses over a 2×4 structural wall.  The existing wall is standard drywall, 2×4… I’m in NH (CZ 6A) doing an exterior remodel on my 1950 ranch using 7 1/4″ Larsen Trusses over a 2×4 structural wall.  The existing wall is standard drywall, 2×4…Read MoreGreenBuildingAdvisor