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Obex Cortex FR - Self Adhesive Breather Membrane - 25M Long x 1100mm Wide (27.5 SQM)

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(incl VAT) £334.04 £303.67
-10%
(excl VAT) £253.06
Estimated Delivery Date Jul 18, 2025 - Jul 21, 2025
No deliveries on weekends or holidays.
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Obex Cortex FR is a self-adhesive breather membrane engineered for external wall and façade applications. The Cortex Obex FR is a Class B fire-classified breather membrane, offering a fully compliant solution that aligns with all UK construction standards.

Designed with a focus on ease of installation, these Obex Cortex 0521FR sets a new benchmark in the field of breather and vapour permeable membranes for external applications. This innovative membrane integrates seamlessly with sheathing boards to prevent water ingress and allow vapour to escape, ensuring your building envelope remains both dry and breathable.

Key Features:

  • Self-Adhesive Application: Breather membrane ensures quick and easy installation, reducing labor time and costs. It includes a fire classified adhesive layer with an easy release liner for the ultimate self-adhesive breather membrane.
  • Class B Fire Classification: Provides enhanced safety and compliance with UK construction standards. 0521FR external breather membrane combines a fire classified, breathable and airtight membrane.  
  • High Breathability: Allows vapour to escape, preventing moisture build-up and ensuring a dry building envelope. With W1, water tightness feature, it effectively prevents water penetration, protecting the insulation and internal structures.

Applications:

Obex cortex FR, external breather membrane can be used for use on external façades, normally applied direct to the sheathing board to prevent water ingress and allow vapour to escape.

Delivery Terms
Order Value (Ex VAT) Delivery Charge (Ex. VAT)
£650  Free Delivery
Below £650  £16.00

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Delivery Terms
Order Value (Ex VAT) Delivery Charge (Ex. VAT)
£650  Free Delivery
Below £650  £16.00

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