Preventing moisture problems in decking

I’m building a patio over living space in climate zone 3.  We’re planning to put insulation above the deck (min. R-5) as well as below.  The vapor-open air control layer… I’m building a patio over living space in climate zone 3.  We’re planning to put insulation above the deck (min. R-5) as well as below.  The vapor-open air control layer…Read MoreGreenBuildingAdvisor