PENNFLEX™ Air-permeable roofing membrane is a synthetic roof underlay to use under pitched roof claddings. It reduces drafts and assists in moisture management. 

As a functional membrane which is laid on the thermal insulation layer. It is applied to the composite outer wall or sloping roof of the wall curtain, profiled steel sheet, steel (wood) structure, masonry and so on. 

Material: Nonwoven+ Nonwoven Air-permeable film+ Nonwoven. 

Where to apply?

PENNFLEX™ Used for roof construction for sloping roof of the wall curtain, rofiled steel sheet, steel (wood) structure, masonry and so on.

Why it is so superior?

Excellent performance at water resistance.

Light and thin, antiskid with good low temperature flexibility, suitable for construction in different condition. 

Improve water-tightness of building, protect the construction from the invasion of wind and rain, protecting the structural materials and equipment inside roof and wall. 

High tensile strength and elongation rate, highly flexibility at low temperature. 


How to store it?

* Store rolls on horizontal position to prevent damage.
* Avoid sun-baked and rain
* Store rolls in a clean dry location.
* Add cover as necessary to protect rolls from environmental damage, heat, cold or moisture etc.

Why choose PENNINT?