Our remodel will have 9" foundation walls. I can only buy vents for a 6", 8", or 10" wall. I do not want to put the vents into the rim-joist as the wall will be bricked. This is a 400 sq. ft. addition on a 50 yr. old home that is being made to match existing. Any suggestions?
Wall thickness... I was just told that they used to make adjustable vents for use in 6-8" walls. I guess it was sort of a sleeve type set-up for adjustability. Anyone ever see em or know if they available in larger widths?