CertiShield Class A2 Non-Breathable Membrane meets EN 13501-1 (Class A2), for non-combustibility and BS 476 parts 6&7 for resistance to spread of flame.
CertiShield Class A2 Non-Breathable Membrane is lightweight, extremely strong, durable and easy to install. (Note: joins between membrane layers should be sealed with CertiShield Foil Tape 75mm x 50m.