The OBEX CORTEX 0521FR is a Class B fire-rated, self-adhesive breather membrane engineered for external wall and facade applications. This advanced breather membrane integrates a fire-resistant, self-adhesive backing and breathable, and airtight layer, offering a fully compliant breather membrane in line all UK construction regulations.

Designed with a focus on ease of installation, superior performance, and compliance with construction standards, the OBEX CORTEX 0521FR breather membrane sets a new benchmark in the field of breather and vapour permeable membranes for external applications. Its innovative features ensure it stands out as the superior breather membrane option for professionals seeking reliable and effective building envelope solutions.

Key benefits:

GOLDEN THREAD ALIGNMENT - Class B fire classified regardless of the substrate for full compliance with Reg 7.
REDUCE WATER INGRESS ISSUES - Rigorously tested to EN 1928 achieving W1 water resistance for ultimate performance.
EASIER PROJECT SCHEDULING - six months' UV resistance for optimum project scheduling flexibility.
SUITABLE FOR OPEN CLADDING - Also available in plain black for the ultimate solution behind open rainscreen cladding.
EASIER INSURANCE APPROVAL - Full 3^rd party approval with internationally recognized KIWA BDA.
LESS WASTE & DAMAGES - Excellent scuff and tear resistance with a highly durable outer coating.
IMPROVED HEALTH & SAFETY - Ergonomically designed roll sizes to aid manual handling and reduce musculoskeletal issues.
COMPLETE PEACE-OF-MIND - 20-year warranty for full confidence in the integrity of the product.
PROMOTE YOUR OWN BRAND - Custom options available to elevate your brand’s visibility and enhance brand recognition.
UP TO 30% QUICKER INSTALLATION - Split release liner for faster and improved installation with greater control and accuracy.

Cortex 0521FR KIWA BDA Agrement Certificate