Product recommendations/ details for air-sealing subfloor under T&G fir finish flooring

Hello all. Trying to wrap up construction this summer on a two story ADU, 600 SF apartment above heated 250 SF studio and unheated 350 SF single car garage. Climate… Hello all. Trying to wrap up construction this summer on a two story ADU, 600 SF apartment above heated 250 SF studio and unheated 350 SF single car garage. Climate…Read MoreGreenBuildingAdvisor