window specs for southern 4a climate zone?

I’m planning to build my house in zone 4a, right on the boarder of zone 3a.  The front of the house faces NNE, and the house will be in a… I’m planning to build my house in zone 4a, right on the boarder of zone 3a.  The front of the house faces NNE, and the house will be in a…Read MoreGreenBuildingAdvisor