Accoustalay 250 DPM underlay is a foam based underlay with a built in DPM which when installed correctly using waterproof tape will protect against the penetration of moisture. The transmitted sound reduction is 19dB. This is an ideal underlay where the presence of a good quality DPM in the sub floor may be missing, and this underlay will protect your new floor whilst at the same time adding some noise reduction.
Accoustalay 250dpm underlay