The heat ducts were never in the roof - only in the floor.
The roof contains ductwork for the air conditioner and if so equipped in the AC, a heat pump.
The change over to the laminated floor in the last couple years represents a move away from a duct run within the floor, the dedicated runs from the furnace to each heat duct in the floor.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.