A high performing breathable roofing underlay that combines high strength with a high head of water and ageing performance. The product has a weight of 140 g/m2 and is available in 1 x 50m and 1.5 x 50m roll sizes.
Monarperm Plus is a dark grey coloured breathable roofing underlay made from polypropylene (PP) spun bonded material with a dark grey microporous film for high UV and ageing stability. Monarperm Plus is made with an extra heavy underside spun bond to make it useable on boarded roofs.