These flooring elements are what are generally accepted as being common property:
(a) original floorboards or parquetry flooring affixed to common property floors
(b) mezzanines and stairs within lots, if shown as a separate level in the strata plan
(c) original floor tiles and associated waterproofing affixed to common property floors at the time of registration of the strata plan
(d) sound proofing floor base (eg magnesite), but not including any sound proofing installed by an owner after the registration of the strata plan.
The floating floor that you installed is not common property.
You do not have to apply for permission from the committee or the OC to lay carpet – it is a “cosmetic” renovation SSMA2015. Just go ahead and do it.
If your scheme has an existing by-law that states that carpet installation needs approval then the existing by-laws which conflicts with the the new Strata Act are invalidated by the new Strata Laws.
You will note that carpet has not been classified as common property, neither the original carpet, nor any latterly installed carpet .