I agree with JT. Try the OC avenue first.
There are a few things to consider when determining if flooring is common property.
If there is no special by-law regarding the flooring then Floating flooring can be a ‘grey’ area and can depend upon how it is affixed to the slab e.g. has it been screwed or glued to the slab, or not affixed to the slab at all?
The OC may argue that if the flooring is not affixed to the slab and has no special by-law regarding who is responsible for it then perhaps it may be considered not to be common property …. in a similar way that carpet is not considered common property.