Izoperm Plus FR

IZOPERM PLUS FR (A2) is a non-combustible interior air and vapour control membrane built on a lacquered aluminium composite, engineered for buildings with stringent fire safety requirements.

What it does

It simultaneously functions as a high-resistance vapour control layer (Sd 2000 m), an airtight barrier, and a low-emissivity reflective layer reflecting up to 95% of interior radiant heat — all while carrying an A2-s1,d0 reaction-to-fire classification.

When and where to use it

• High-rise residential and commercial construction
• Schools, offices, hospitals, and other regulated buildings
• Roof, ceiling, wall, and floor assemblies (pitched or flat, warm/cold/hybrid)
• Timber- or steel-framed construction
• External protective sheathing in warmer climates

Key benefits

• A2-s1,d0 fire classification
• Vapour resistance Sd 2000 m / 10,000 MNs/g — strong protection against interstitial condensation
• Air permeability <0.01 m³/m²·h @ 50 Pa
• Low emissivity (≤0.05) reflective surface
• W1 watertight per EN 1928
• 20-year warranty, UKCA and CE marked

System note

Use with ECHOSEAL ALU FR detailing tape — the system is A2-s1,d0 tested together.