What has experience shown regarding different supply temperature requirements floor by floor in a UFAD system?
A. Research in UFAD buildings that have been operating for several years show that the temp supply on each floor in a UFAD system will need to vary particularly on a low rise building. For example, on a 3-story building, the supply temperature required for proper occupant comfort under the raised floor will differ from floors 1 (with the raised floor on a slab on grade), floor 2 (being sandwiched in the middle of the building), and floor 3, which is receiving radiant energy from the roof. As a result, engineers are finding our floor-by-floor air columns are a great solution to solve this problem as this way individual floor temperature needs can be met.
