Home Breather Membrane Permavent METAL

Permavent METAL

 permavent-metal

PHYSICAL PROPERTIES

Surface mass density 560 g/m2
Water vapour permeability 1373 g/m2/24hr
Vapour resistance 0.15 MNS/g-1
Thickness approx. 9.5 mm
Resistance to UV 3 months
Resistance to tear
  longitudinal:
>310 N/5 cm
 transversal:
>199 N/5 cm
Temperature range -40 ?C +95 ?C
Resistance at nailing point >193 N
Watertightness >6000 mm H2O !!!
Roll size: 1.5m x 25m   37.5m2
Number of rolls per pallet 9
 

 

 

 

Permavent METAL uses the very high production methods of Permavent MAX as base layer to which a spiral layer of polypropylene mesh is melt bonded. It is specially designed as a moisture and seperation layer for all types of standing seam and metal roofs. It is designed to be laid on top of rigid insulation or timber or plywood boarding and is clean, safe and lightweight.

Its high tech design is ideal for roof pitches over 3o and will mask irregularities such as board joins that could deform the metal roof covering. Permavent METAL is easy to install in and allows the metal roof to be installed in the usual manner.

Permavent METAL is fully vapour-permeable, and provides a strong, durable and waterproof barrier.

 

Newsflash

Following the success of the Queen’s award winning Easy Verge, here at Permavent we are proud to announce the launch of the recently developed Easy VergeTrim. This latest addition to the Easy Roof System has been specially designed to meet the requirements of the Scottish and refurbishment markets.