VERSO VCL100 - VAPOUR BARRIER 1.5m x 50m (75m2)

Verso VCL100 HP Vapour Barrier – High-Performance Vapour Control for Passive Homes

When building or renovating to passive home standards, every layer of your building envelope matters — and the Verso VCL100 HP Vapour Barrier is engineered specifically to meet the demanding requirements of these high-performance builds. This premium vapour control layer and airtightness membrane has been purpose-built for the internal lining of passive homes, delivering precise control over water vapour transmission across the full spectrum of New Zealand's diverse humidity conditions — from the damp winters of the South Island to the humid summers up north.

Passive home construction relies on an incredibly tight, well-managed building envelope to achieve its exceptional energy efficiency standards. Without the right vapour control layer, moisture can migrate through walls and ceilings, leading to condensation, mould growth, and long-term structural damage. Verso VCL100 HP addresses this challenge head-on, offering effective vapour diffusion control that helps regulate moisture movement while maintaining the airtightness essential to passive home performance.

Key Features & Benefits

Safety and compliance are built into every roll of Verso VCL100 HP. The product meets EN1501 fire compliance standards, giving builders, designers, and homeowners confidence that this membrane meets recognised European fire safety benchmarks — an important consideration for any internal lining product used throughout a home's structure.

Designed specifically with passive home applications in mind, Verso VCL100 HP isn't a generic vapour barrier repurposed for high-performance builds — it's engineered from the ground up to support the specific demands of passive house methodology, where airtightness and vapour management are non-negotiable pillars of the overall design.

Effective vapour diffusion control is at the heart of what makes this product stand out. Rather than simply blocking moisture entirely (which can trap dampness within wall cavities), Verso VCL100 HP manages the rate at which vapour passes through the membrane, helping maintain a healthy moisture balance within the building envelope throughout the seasons.

To achieve a truly complete and reliable airtight system, we recommend pairing Verso VCL100 HP with ViBest Super Pro Flashing Tape. Using this combination ensures all seams, joints, and penetrations are properly sealed, maintaining the continuous airtight layer that passive homes depend on for their performance ratings. A vapour barrier is only as effective as its weakest point — proper taping and sealing at every junction is essential to prevent air leakage and moisture ingress.

Specifications at a Glance

• Product Type: High-performance vapour control layer and airtightness membrane
• Application: Internal lining for passive home construction
• Fire Compliance: EN1501
• Performance: Effective vapour diffusion control suited to all NZ humidity conditions
• Recommended Companion Product: ViBest Super Pro Flashing Tape
• Roll Size: 1.5m x 50m (75m² per roll)
• Roll Weight: 4.70 kg

Why Choose Verso VCL100 HP?

If you're building to passive home standards, cutting corners on your vapour control layer simply isn't an option. Verso VCL100 HP gives builders and homeowners a trusted, purpose-engineered solution that supports the airtightness and moisture management passive homes require to perform as designed — season after season, year after year. Combined with proper installation practices and the recommended flashing tape system, this product forms a critical part of a high-performing, durable building envelope.

Whether you're a builder specialising in passive construction or a homeowner investing in a highly energy-efficient home, Verso VCL100 HP delivers the performance and compliance you need for peace of mind.

Feel free to place your order by emailing us at [email protected] or call us at 0221969021 – we'd love to hear from you!