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floating floor[¦flōd·iŋ ′flȯr]
A floor constructed so that the wearing surface is separated from the supporting structure by an insulating layer of mineral wool, resilient quilt, or other material to provide insulation against impact sound.
The floor is separated from the rest of the building by supporting it on sleepers or a built-up structural system, to provide sound insulation or space for high-tech flexible electrical service, independent of wall locations. See also: Floor
In sound-insulating building construction, a floor slab (or floor assembly) which is completely separated from (and mechanically isolated from) the structural floor by a resilient underlayment, such as fiberglass floor-isolation board, or by resilient mounting devices; used to isolate the vibration of machinery mounted on the floating floor from the building structure.