Membrane WP - TBA Firefly - Flexible Fire Barriers

A2 Class non-combustible, vapour permeable, breathable membrane

FIREFLY™ MEMBRANE WP is a non-combustible, fire resistant membrane that achieves Class A2 (EN13501-1). Vapour permeable and suitable for use as a lining within ventilated façade systems, including applications above 18 metres.

CONSTRUCTION
FIREFLY™ MEMBRANE WP is a strong, breathable woven glass substrate aluminised on one side, suitable for jointing with foil tape.

KEY BENEFITS

Weatherproof and breathable, FIREFLYTM Membrane WP is designed to be a vapour permeable, reflective insulation layer in commercial facades and rain screen cladding systems
Classified A2 (EN13501-1), suitable for use over 18m – combining non-combustible fire resistance with traditional construction membrane performance requirements
Ideal for upgrading fire performance both on remedial work and new installations of cladding and rain screen systems
Outstanding strength and durability both before and after age testing, demonstrating sustainable performance attributes when weathered
Lightweight, flexible, simple to install and resistant to damage during installation at temperatures as low as -40°C
Jointed by foil tape

DESCRIPTION	Aluminised woven glass/aluminium breathable membrane
REACTION TO FIRE	EN 13501-1:2018, A2, S1 d0 Non-combustible, No significant contribution to fire at any stage of the fire
FLAME PROPAGATION	BS476 Part 6 & 7 Class 0
RESISTANCE TO WATER PENETRATION	EN 13111 Pass - W3 (pre-ageing) Pass - W3 (post-ageing)
WATER VAPOUR DIFFUSION	EN ISO 12572 Sdc (m) 0.02m silver face, 0.03m reverse
TENSILE STRENGTH	EN 12311-1 (modified by EN 13859-1, EN 13859-2) MD >2200 N/50mm (pre-ageing) MD >2200 N/50mm (post-ageing) CD >1800 N/50mm (pre-ageing) CD >1800 N/50mm (post ageing)
ELONGATION	EN 12311-1 (modified by EN 13859-1, EN 13859-2) MD 4% (pre-ageing) MD 4% (post-ageing) CD 4% (pre-ageing) CD 3% (post ageing)
TEARING RESISTANCE (NAIL SHANK)	EN 12310-1 (modified by EN 13859-1, EN 13859-2) >200 N
DIMENSIONAL STABILITY	EN 1107-2 (% change) MD 0.01 %, CD 0.0 %
FLEXIBILITY AT LOW TEMPERATURE	EN 1109 No cracking at -40°C
DIMENSIONS AND PACKAGAING	Width: 125cm Thickness: 0.2mm Roll Length: 50m Roll Area: 62.5m2 Weight: 225g/m2, 14kg per roll nominal

All FIREFLY™ cavity barrier products must be installed in compliance with the FIREFLY™ Installation Guide, which is provided upon request. Deviation from these drawings should not be carried out without written authority from the FIREFLY™ Technical Department.

All figures quoted are nominal, believed to be true at the time of printing and are presented without guarantee. It is up to the user to determine the suitability of use.

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