range

  1. muilebon

    Range hood duct clearance to joists & drywall

    The hood duct needs to run through kitchen ceiling and vent out in a wall (not roof). My joists are 2 x 8 with the ceiling drywall dating back to the 1950s. What is the max duct diameter I can install in my joists space? Is there any clearance (air gap) consideration between the pipe and joists...
Top