Junckers Polyfoam underlay is a sound absorbing underlay that includes a moisture barrier and is recommended for use with solid hardwood and engineered wood floating floor installations.
Polyfoam is non-absorbent and must be laid foam-side down to prevent perforation of the membrane by sand or gravel particles.
Unique 100mm overlap to prevent moisture
Lay with polythene side up
Available in 15m² or 30m² roll