Permavent Leto 125 Breathable Felt 1.0 x 50m (125gsm)

Manufactured by Permavent, the latest range of breather membranes LETO are �for use in warm non-ventilated and cold ventilated roofs. A three layer construction with�two layers of non-woven polypropylene and� a microporous film between�to form a breathable waterproof membrane.� A high quality material to regulate humidity and moisture levels and control�condensation in the buidling.�