RESTEC FLEXITEC is a roofing system used for flat roof waterproofing and refurbishment. It is designed to provide a seamless, durable membrane that helps protect roofs from leaks and long-term weather damage.
With experience in installing FLEXITEC systems on both domestic and commercial projects, Woking roofers Miller Roofing understand how important correct preparation and application are to achieving long-lasting results.
This guide explains what RESTEC FLEXITEC is, how it works, and why it has become a popular choice for flat roof repairs and upgrades in the UK.
Key Takeaways
- RESTEC FLEXITEC is a liquid-applied roofing system that creates a seamless waterproof membrane for flat roofs.
- It can often be installed over existing roof coverings, making it suitable for refurbishment projects.
- Correct installation by a trained contractor is essential to ensure long-term performance and eligibility for the manufacturer guarantee.
What is RESTEC FLEXITEC?
RESTEC FLEXITEC is a liquid-applied roofing and waterproofing system designed to create a seamless, fully bonded membrane across a roof surface. Unlike traditional roofing materials that rely on joints, seams, or overlaps, FLEXITEC forms a continuous waterproof layer that helps eliminate common weak points where leaks can develop.
The system is suitable for a wide range of flat roofing solutions and can often be installed directly over existing roof coverings, reducing the need for costly strip-outs and extensive refurbishment work.
As a result, RESTEC FLEXITEC is commonly used on domestic flat roofs, commercial buildings, schools, offices, balconies, walkways, and many other waterproofing projects.

How Does RESTEC FLEXITEC Work?
The FLEXITEC system is applied in liquid form by trained installers. Once cured, it creates a tough, flexible membrane that adheres directly to the roof substrate.
Because the membrane is seamless, there are no vulnerable joints or welds that can deteriorate over time. This makes it particularly effective for roofs with complex detailing, penetrations, awkward shapes, or areas where traditional roofing systems may be difficult to install.
The flexibility of the material also allows it to accommodate normal building movement without compromising its waterproofing performance.
Benefits of RESTEC FLEXITEC
Seamless Waterproof Protection
One of the biggest advantages of RESTEC FLEXITEC is its seamless finish. Traditional roofing materials often contain multiple joins that can become potential points of failure. FLEXITEC eliminates this issue by creating a single waterproof membrane across the entire roof surface.
Ideal for Roof Refurbishment Projects
In many cases, FLEXITEC can be applied over suitable existing roof coverings. This can significantly reduce labour costs, minimise disruption, and avoid the expense of a full roof replacement.
Suitable for Complex Roof Designs
Roofs featuring skylights, vents, pipes, upstands, or unusual shapes can present challenges for conventional roofing systems. The liquid application process allows FLEXITEC to conform easily around these details while maintaining complete waterproof protection.
Long-Term Performance
RESTEC FLEXITEC is designed to provide durable protection against the UK’s changing weather conditions. Its flexibility and resilience help it withstand temperature fluctuations, rainfall, and UV exposure.
Minimal Disruption During Installation
Because extensive roof removal is often unnecessary, installation can usually be completed more efficiently than some traditional replacement methods. This makes the system particularly attractive for occupied homes and commercial premises.
RESTEC FLEXITEC Installation from Miller Roofing
As a trained RESTEC FLEXITEC installer, Miller Roofing has the expertise to install this advanced liquid roofing system in accordance with manufacturer specifications. Proper installation is crucial to ensuring the roof delivers the durability, flexibility, and waterproof protection that FLEXITEC is designed to provide.
Eligible RESTEC FLEXITEC installations can also benefit from a 20-year manufacturer guarantee, giving you added confidence that your investment is protected for years to come.
If you’re considering a new flat roof in Woking or want to explore refurbishment options for an existing roof, contact Miller Roofing today for expert advice and a free, no-obligation quotation.


