How to prevent condensation on AC mixing box in floor trusses open to soffit?

We have a two-story home in southwest Florida, and within our floor trusses between the first and second floor we have an AC mixing box above our kitchen that keeps… We have a two-story home in southwest Florida, and within our floor trusses between the first and second floor we have an AC mixing box above our kitchen that keeps…Read MoreGreenBuildingAdvisor