Breathable roofing membrane underlay Vent3 PRO is a heavyweight, high performance underlay for cold and warm roof application. It has a weight of 165gsm.

This high rated breathable roofing membrane underlay has a BS5534:2014 Wind Uplift rating of zones 1-4 with a 345mm lap fixing batten, and zones 1-5 with the addition of our Vent3 Double sided breather tape. With a 250mm or 100mm Lap fixing batten Vent3 Pro will reach zones 1-5.

 
BBA Certified
 
Cold & warm roof application
 
3 Layer spun-bonded membrane
 
Clean & easy to use
 
Heavyweight performance & flexibility
 
Excellent tensile strength
 
Green surface prohibits glare
 
No gusting wind noise
 
UV stable for up to 3 months
 
Excellent nail tear resistance