Obex Cortex is a breather membrane engineered for external wall and façade applications. This Class A2 fire-classified membrane offers advanced moisture management and fire protection, making it an ideal choice for modern construction needs.
Key Features:
- Obex Cortex Technology: The Obex Cortex FR breather membrane utilises state-of-the-art Obex Cortex technology, a water resistant yet breathable technology, to ensure optimal performance in external wall and façade applications.
- Breathable Yet Protective: Designed to facilitate the escape of moisture while preventing condensation within the external wall construction, ensuring the integrity and longevity of your building.
- Engineered for Excellence: This breathable membrane is specifically engineered for use with sheathing boards, concrete, and insulation materials, providing a robust barrier against the elements.
- Fire-Classified Performance: With a Class A2 fire classification, offers an added layer of safety without compromising on breathability.
Applications:
- External Walls: Ideal for use in external wall constructions, this breather membrane effectively manages moisture and prevents condensation, safeguarding the structural integrity.
- Façade Systems: Perfect for façade applications, offering both aesthetic and functional benefits.
- Insulation Systems: Works seamlessly with various insulation materials, enhancing overall thermal performance.
Applications:
External breather membrane is used to:
- For use on external façades, normally applied direct to the sheathing board to prevent water ingress and allow vapour to escape.
- Not suitable for the sealing of windows, doors and slab edges - see ISM’s (Interface Sealing Membranes) for this purpose.
- One roll of breather membrane is 1.2M wide and 50M Long, covers 60 Sqm
- Black external breather membrane is highly UV resistant
- Breathable membrane featuers water resistant yet breathable technology
- A2 fire rated breather membrane is KIWA Approved
| Product Type | External Breather Membrane |
| Product Code | 0221FR |
| Brand | Obex |
| Length | 50M |
| Width | 1.2M |
| Roll Coverage | 60 Sqm |
| Thickness | 0.20mm (± 0.05mm) |
| Colour | Black |
| Resistance To Water Penetration | W2 |
| Low-Temperature Stability | -40°C |
| Reaction To Fire | A2 (EN 13501-1) |
| UV Resistance | Good |
| Vapour Resistance | 0.15 MNs/g |
| Applications | For use on external walls, facades etc |
| Declaration Of Performace | |
| Delivery Terms | |
|---|---|
| Order Value (Ex VAT) | Delivery Charge (Ex. VAT) |
| £650 | Free Delivery |
| Below £650 | £16.00 |
Returns And Refunds
- You are free to cancel the order anytime before we send you an order confirmation email with the estimated delivery date.
- Once confirmed and delivered, The product is NON-RETURNABLE. The product comes to you straight from the manufacturer. NO Returns accepted
- We urge you to check the insulation for any damage before the driver returns. If the product you received is damaged, please contact us immediately.
- For more information, please refer to our Return Policy

