A2 Class non-combustible, vapor-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.
FIREFLY™ MEMBRANE WP is a strong, breathable woven glass substrate aluminised on one side, suitable for jointing with foil tape.
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)
(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
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.
Delivery usually 1-2 days from receipt of order, please allow 1+week for bespoke orders.
Returns & Refunds, if the items are no longer required you can return them within a 28 day period from order, the return items will be paid for by the customer & a 15% re-stocking fee will apply, all items must be returned in good order.
When the items have been received in good condition a refund will be issued minus the 15% re-stocking fee.
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Bank Transfer (details on request).
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