Effisus Breather FR-B
Class B That Delivers. Proven Results.
Façade breather membranes act as a protective underlay and shield against driving rain and wind, while allowing water vapor to pass through. Effisus Breather FR-B is a B-class fire rated nonwoven membrane with outmost watertightness and UV exposure.
Ventilated façade systems
Masonry and blockwork systems
Renovation and retrofit projects
Façade membranes are critical to the building’s weatherproofing, comfort and energy efficiency, moreover, they play a key role in enhancing the façade’s durability.
Breather membranes act as a protective underlay and shield against driving rain and wind, while allowing water vapor to pass through, thus preventing mould build up in geographies with wet and cold seasons.
Effisus Breather FR-B is a B-class fire rated nonwoven membrane with outmost watertightness and resistance to UV exposure, resulting therefore in a positive contribution to the building’s safety, efficiency and longevity. For peace of mind and compliance, this solution is backed by solid test results, proven real conditions and it is fully in line with the Building Safety Act (BSA) and is approved for unrestricted use in High-Risk Buildings (HRB).
The membranes never act as a stand-alone solution, requiring various accessories for fixing the membrane in place, addressing overlaps, sealing the perimeter and finally sealing punctual perforations. Effisus addresses all these needs with high-end solutions, which ultimately result in a comprehensive system solution.
When the specifications or building compliance criteria demands A class fire-rated façade elements, Effisus Breather FR UV matches and excels in that challenge.
| Property | Standard | Value |
|---|---|---|
| Thickness | – | 0,60mm |
| Length | – | 50m |
| Width | – | 1,50m |
| Reaction to Fire | EN 13501-1 | Class B-s1,d0 |
| Watertightness | EN 1928 | W1, pass |
| Water vapour properties Sd (m) | EN ISO 12572 | 0.02 |
| Tensile Strenght MD/CD (N/50mm) | EN 12311-1 | 370 / 270 |
| Tear resistance MD/CD (N) | EN 12310-1 | 150 / 150 |
| Flexibility at low temperature (ºC) | EN 1109 | -25ºC |
| Service temperature range (ºC) | – | -40ºC to +80ºC |
| After ageing (5000hrs): Tensile strength MD/CD (N/50mm) | BS EN 12311-1 | 290 / 230 |
| After ageing (5000hrs): Resistance to water passage | BS EN 1928 B | W1, pass |
