vented and unvented soffit – where/when are each used?

I am finding conflicting advice on when/where to use vented soffit vs unvented soffit.  There are four locations/situations that I am hoping for direction.  House eave (I believe this is… I am finding conflicting advice on when/where to use vented soffit vs unvented soffit.  There are four locations/situations that I am hoping for direction.  House eave (I believe this is…Read MoreGreenBuildingAdvisor