I am having trouble understanding the difference a bunch of different versions of what I think are actually maybe two or three different flavors of this - depending on the source I read about: underfloor raceways, underfloor ducts, cellular metal floor raceway, cellular concrete floor raceway, or cellular deck systems (at least). I could use some help grouping them into primary categories which seem to be about whether or not there is a concrete topping, whether or not the system is set up in the original construction or later, and perhaps how many levels of ducts/raceways there are. Is a duct the same thing as a raceway? Anyone got a good sense of the differences? Thank you!
Please sign in to leave a comment.