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Multifoil Insulation - (Vapour Control & Radiant Barrier)
SuperFOIL multifoil insulation systems provide high-performance thermal insulation, vapour control and radiant barrier performance in a single, space-saving solution.
Designed for roof, wall and floor applications as part of internal or protected construction build-ups, where airtightness, moisture control and compliance with building regulations are required.
- 3-in-1 system combining thermal insulation, vapour control layer and radiant barrier.
- Reduces heat loss, limits condensation risk and improves airtightness.
- Suitable for roofs, walls and floors in new build and retrofit projects.
- Slim, lightweight design ideal where build-up depth is limited.
- Easy to install with no specialist tools required.
- Manufacturer-tested and building regulation compliant.
Important – Certification & System Use
SuperFOIL multifoil insulation products are designed to be used as part of controlled or protected construction build-ups, in accordance with approved installation guidance.Certain SuperFOIL multifoil products form part of the SuperFOIL IWI (Internal Wall Insulation) system, which has achieved KIWA Agrément certification when installed as a complete system with correct layer sequencing, air gaps and vapour control detailing.
Multifoil insulation is not a breather membrane and not a waterproof external layer.
It must always be installed within internal or protected constructions using correct vapour control logic.System certification applies to the approved build-up, not to individual products used in isolation.
Project-specific U-value calculations and technical guidance are available to support compliance.
U-Value calculation & regulatory compliance
Thermal performance depends on the full construction build-up. Use the official SuperFOIL U-Value Calculator (available on the Home Page or Product Page) to verify compliance and optimise your insulation design.
