Why choose IKO Easyseal VCL

IKO Easyseal VCL is a high-performance, self-adhesive vapour control layer designed for use
within modern warm roof constructions. Installed directly over the structural roof deck and beneath insulation,
it forms a continuous airtight barrier that limits the passage of warm, moisture-laden air into the roof build-up.

In warm roof systems, effective vapour control is essential. Without a correctly installed VCL, internal moisture
can migrate into insulation layers and structural decks, increasing the risk of interstitial condensation,
reduced thermal performance and long-term roof deterioration. IKO Easyseal VCL is designed to address this risk
at source.

Key benefits

• Purpose-designed for warm roofs: Supports modern insulated roof build-ups.
• Self-adhesive installation: Fast, secure application directly to the roof deck.
• Airtight performance: Helps maintain vapour control continuity.
• Condensation risk reduction: Limits moisture movement into insulation.
• System compatible: Suitable beneath common flat roof insulation systems.

Typical applications

IKO Easyseal VCL is commonly used in warm flat roof constructions, low-pitch roof systems and insulated roof
refurbishments. It is suitable for both domestic and commercial projects where airtightness and moisture control
form part of the roof performance strategy.

Good practice & workmanship

Vapour control layers must be continuous to be effective. The roof deck should be clean, dry and suitably prepared
before installation. All laps, penetrations and junctions must be sealed to maintain airtight continuity and avoid
unintended vapour pathways.

For wider context on substrates, detailing and control layers within roofing systems, refer to
BS 6229 substrate guidance,
the system overview provided in
The Lead Handbook,
and practical commentary from
Neal Roofing.

At a glance — IKO Easyseal VCL

Always follow manufacturer guidance and project specifications. Vapour control layers form a critical part of the
roof performance strategy.