Can I install my Floorify rigid vinyl floor on top of an existing wooden floor?

Floorify is installed "floating". An important condition here is that the subfloor must be even, stable and firmly fixed. When installing on a wooden base, you must first remove the existing floor covering. There must be no traces of fungi and / or insect nests. The subfloor must be level and all loose parts must be nailed. Apply a suitable wooden leveling board or leveling compound to prepare the subfloor perfectly. The leveling boards must be secured every 30 cm with screws. The crawl space under the wooden floor must be sufficiently ventilated. Remove all obstacles and ensure adequate ventilation (minimum 4 cm² total ventilation openings per m² floor area). The moisture percentage of the wood may not exceed 10%.