The purpose of an underlay is to level out minor unevennesses in the sub-floor and to provide acoustic and/or thermal insulation. As the quality of the underlay will have a major impact on the eventual quality and comfort of your Quick-Step floor, we highly recommend to always combine your Quick-Step floor with the correct Quick-Step underlay.
There is a suitable type of underlay for every room and situation. Stop a moment to think about what you need exactly.