FIREFLY™ MEMBRANE WP is a non-combustible, fire resistant membrane achieving an A2 non-combustibility classification in accordance with the demanding EN 13501-1 standard.

FIREFLY™ MEMBRANE WP is constructed from a strong, durable woven glass substrate aluminised on one side. It is a breathable, weatherproof barrier with excellent mechanical properties and is designed to be a vapour permeable layer or reflective insulation layer in commercial wall applications such as facades.

FIREFLY™ MEMBRANE WP is lightweight, pliable, extremely strong and durable and easy to install. Joints between membrane layers should be sealed with foil tape or overlapped by at least 150mm.