Download Factsheet U02 - XPS BREATHABLE UNDERLAY from our Support page.
Lightweight, breathable 2mm foam Underlay, designed specifically for use with warm water floor heating systems and for use with laminate, engineered and solid wood flooring. Installing new underlay dramatically improves the performance of new wood or laminate flooring and improves walking comfort and reduces associated noise. If you are laying your floor on a relatively new concrete floor we would advise you use a damp proof membrane