1965 Chalet Roof Design Air Space/Venting?

I recently purchased a mid 1960s chalet style home in the White Mountains of New Hampshire. I have questions about the roof. First, can someone help me understand the functionality… I recently purchased a mid 1960s chalet style home in the White Mountains of New Hampshire. I have questions about the roof. First, can someone help me understand the functionality…Read MoreGreenBuildingAdvisor