Roll of Breathable Felt - 1Mtr x 50Mtr Permavent ECO

For use on all types of domestic and commercial roofing and walling applications, including: 

• cold non vented
• traditional hybrid
• cold vented
• Scottish and fully boarded applications

Permavent use the very latest technology from the medical industry to encapsulate the highest grade hydrophobic film inside the very highest quality spunbond polypropylene layers. Unlike other companies, who simply stick the different layers together, Permavent membranes are manufactured in a single process that greatly improves the quality and integrity of our membranes. This 3 in 1 process means that Permavent offer the best performing breather membranes in their class with superior strength, breathability, flexibility and durability. 

Permavent membranes are certified for use in all types of roofing and walling applications and conform fully with: 
BS 5250: 2011 Code of practice for control of condensation in buildings. 
BS 5534: 2014 Code of practice for slating and tiling. 
BS 8000-6: 1990 Workmanship on building sites. 
BS EN 1991-1-4; 2005 +A1: 2010 +UK NA. 
BS EN 13859: Flexible sheets for underlays. 
BS EN 13501-1 2007.