OBEX CORTEX 0520FR Class B Breather Membrane features water-resistant yet breathable technology, which facilitates the escape of moisture and the prevention of condensation within the external wall construction.  It can be applied to many surfaces including sheathing board, concrete and insulation.  

This breather membrane has a watertightness rating of W1 and is therefore especially suited to demanding applications where the highest levels of water resistance are required.

The membrane is installed using the OBEX CORTEX 0825 Installation Kit which includes 2 rolls of 0824FR double-sided tape and 6 rolls of single sided 0823FR UV façade tape.

Typical Uses

Class B external breather membrane for use in facades and other construction applications.
3rd Party Certified
6 Months Exposure
Class B
EI60 Fire Test Component
Breathable
W1 - EN 13859-2


Product Specs

Width
1500mm

Length
50m

Thickness
0.3mm

Colour
Black with white printing



Technical Specs

Harmonised Standard

EN 13859-2

Fire Classification | EN 13501-1

B-s1,d0

Watertightness | EN 1928

W1

Sd value | EN ISO 12572

0.1m

Tensile Strength | EN 12311-2

Longitudinal – 255 N/50mm, Transversal - 180 N/50mm

3rd Party Approved

KIWA Approval – BAW-22-245-P-A-UK

UV Resistance

6 Months UV Resistance

Data Sheets

Data Sheet

Decleration Of Performance

Installation Guide

Safety Data Sheet

Technical Data Sheet