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Protect your roofing system with high-quality vapour barriers and vapour control layers (VCLs). Designed to prevent moisture build-up and condensation, these essential roofing components help maintain insulation performance and structural integrity.

What Is a Vapour Barrier?

A vapour barrier, also known as a vapour control layer (VCL), reduces moisture infiltration within roofing and wall systems. It plays a vital role in preventing dampness, mold, and energy loss in warm and cold roof applications.

Our Vapour Barrier Collection

✔ StrataShield SA ALU VB Self-Adhesive Vapour Barrier – Flexible, durable, and easy to install for warm roofs.
✔ ALUTRIX 600 Vapour Barrier – High-performance, fully bonded membrane for high-humidity environments.
✔ VapAir Seal MD – A strong, reinforced VCL with self-adhesive backing for quick application.

Browse our range of vapour barriers today for reliable moisture protection and long-term roofing performance.

Choosing the Right Vapour Barrier for Your Roofing System

When selecting a vapour control layer, consider factors such as:

✔  The level of humidity in your building

✔  The type of roof insulation (warm or cold roof)

✔  The material of the roof deck (metal, plywood, concrete, etc.)

✔  The installation method (self-adhesive vs. bonded application)

Our vapour barriers are designed to meet the highest industry standards, ensuring optimal protection for commercial and residential roofing projects.

Don't Take Our Word For it! Here's What Our Customers Think

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Northumberland

Very satisfied with product and service. Recently bought a roof fibreglass kit from them and very happy with everything. I have already recommended to a couple of my friends.

David B

Worcester

Very good service, e-mails answered, good product details and instructions. Good value prices on all the products and delivered very quickly with a friendly and helpful driver. Would recommend and use again.

Martin P

Ashbourne

Excellent company to do business with - highly recommended. Direct line to really helpful advice; not condescending or patronising if you are a DIY'r or a trade new to this type of construction.

Matt T

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Frequently Asked Questions

Not all roofing systems need a vapour barrier, but they are essential in warm roofs and high-humidity environments. If moisture control is a concern, a vapour control layer (VCL) helps prevent condensation-related damage.

While some self-adhesive vapour barriers are designed for easier installation, it's recommended to have a professional install them to ensure proper sealing and long-term effectiveness.

A vapour barrier is typically installed beneath insulation in roofing and wall systems. If unsure, check with building plans, consult a contractor, or look for signs of moisture-related issues that might indicate a missing or ineffective barrier.

Yes, high-quality vapour barriers, like those in our collection, are designed with excellent tear strength and puncture resistance, ensuring durability even in challenging conditions.

Yes! Vapour barriers are suitable for homes, offices, warehouses, and industrial buildings, helping to maintain insulation efficiency and prevent moisture-related damage in various structures.

A well-installed vapour barrier can last decades if it remains undamaged and is correctly integrated into the roofing system. Choosing a high-quality product ensures long-term protection.