Breathable insulation solutions / Discussions

...insulation, spray foam cavities from outside in, reinstall plywood (might be some air gaps behind plywood), add tyvek drainwrap wrb, then add 2" polyiso enerair, 1" strapping, siding. 2. Remove existing plywood and cavity insulation AND existing poly vapor barrier. Install rockwool batt insulation with NO vapor barrier...

...insulation option for the reasons you mention - protecting indoor air quality as well as managing moisture. Hemp insulation has the ability to absorb and release a certaint amount of moisture without causing any damage. Read more here - All about hemp insulation and where to buy it But I'm still a bit unsure about some...