Vented vs unvented attic

Hi all, new here and seeking advice. New construction. 2,200 square foot footprint with full walkout basement under it. Far Western edge of climate zone 5a. 1/3 of the way… Hi all, new here and seeking advice. New construction. 2,200 square foot footprint with full walkout basement under it. Far Western edge of climate zone 5a. 1/3 of the way…Read MoreGreenBuildingAdvisor