A floating floor is any floor that does not need or cannot be glued or nailed down to the subfloor. In most cases, the floating installation method refers to engineered, laminate, or rigid click flooring installed on top of an underlay. The underlay, along with the locking system of the boards, keeps the floor stable and in place. This is a simple form of installation and a popular method for DIY enthusiasts. 

With non-rigid click luxury vinyl tile, parquet floors, and solid wood flooring, it is normally necessary to fully bond the flooring to the subfloor.

Choosing the Right Model
Acoustic Protect 50 (1.6mm): Choose this if you are covering a large area (25m² per roll) and need a cost-effective solution that provides "good" room and impact sound insulation without significantly raising the floor height.
Acoustic Protect 100 (1.8mm): This is the recommended "all-rounder" for most floating installations on concrete or screed. Its higher density provides superior acoustic damping compared to the 50 model while remaining very thin.
Acoustic Protect 500 (2.6mm): Opt for this premium underlay if your subfloor has slight irregularities or if you require the highest level of "heavy-duty" sound reduction, particularly under engineered wood floors