BreathTech® Vapor Permeable Membrane
BreathTech®, a vapor permeable membrane, advances the capabilities of the building envelope through very high permeability, ultrahigh water holdout, and UV stability.
From Polypore International, LLC, a global manufacturing leader of battery membranes, BreathTech® is a highly engineered, paradigm shifting material for the building industry.
Target Applications




- Roofing Membrane
- Mechanically Fastened Building Wrap
- Self-Adhered Building Wrap
- Composite Integrated Rainscreen
- Combination Sheathing
Moisture Management
Water damage caused by moisture intrusion continues to be a major source of building failures. BreathTech® increases building envelope water management properties through a unique pore structure that delivers an optimal combination of ultra-high water holdout and high vapor transfer.
Unique Pore Structure

Moisture
Vapor Transfer | >150 Perm | ASTM E96-B
Promotes vapor transfer allowing moisture to escape

High Water Resistance | >900 cm |AATCC-127
Fights against water intrusion

Customizable & Integrated Profile Design

- Profile channels can support drainage
- Profile patterns can support slip resistance for safer installations

Building Productivity
Building materials must withstand environmental and construction elements.
The robust polymer chain structure maintains performance properties well beyond 6 months of UV exposure. The highly specialized process used to create BreathTech® produces a tough barrier film for efficient installation and performance.

Pass (no change in defined tensile degradation at 5000 hours)

Lamination Capable
BreathTech® can be adapted to meet unique construction needs and many building material combinations.

Highly bondable composition allows thermal and adhesive lamination for multi-layer structures

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