Teksol PE Foam Underlay provides levelling for uneven floors and carpets Underlay is made of durable quality PE foam that is water proof & heat insulated Underlay is easy to install underlay is resistant to impact Density: 0.04 g/cm²; Thermal Conductivity: 0.0406 W/m.°C; Moisture Permeability: 0.52 g/m² 24hr