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roof underlays mdm Ventia

mdm® Ventia Metal breathable roof underlay


A specialized, diffusive roof membrane designed for use under flat metal roofing. It protects metal sheets from corrosion - the upper side is covered with a spacing drainage layer. It represents high durability and very good water vapour permeability - Sd=0,02m. UV resistant (up to 3 months). Weight: about 400 g/m2.

Use with full boardnig YES
UV resistance*
concerns average yearly radiation in the Central European climate
3 months


Polipropylene combined with polipropylene microporous film; the upper side covered with spacing drainage layer.


lenght: 25 m
width: 1,5 m

quantity per pallet:

Palett dimensions: 1500x1000x2000
m²/palett: 300 m² / 8 rol.

10000110151137,5 m²300 m²/8 rolek