Open-air spaces like balconies and roof terraces, galleries and walkways are constantly exposed to the elements with great demands placed on them as a result of weather conditions and mechanical loads.
Door and window joints, railing posts and junctions are particularly susceptible to moisture penetration, concrete flaking and corrosion. For that reason, outdoor surfaces must remain highly robust and wear-resistant to prevent them from having an impact on the fabric of a building.
Triflex balcony waterproofing systems UK offer solutions to handle even the most demanding of challenges with ease. Our high-quality products, 40 years of experience and know-how and our comprehensive and expert service, make Triflex the partner to turn to when it comes to finding a premium balcony system. Discover for yourself our service, our solutions and the proven reliability of Triflex.

Cold liquid applied membranes for waterproofing, surfacing and protection
Walkway, balcony and terrace systems
Advantages at a glance
Available in a wide variety of finishes and colours
Anti-slip and anti-skid variants
Full and partially reinforced waterproofing options
No need for hot works
Fast-curing, cold liquid applied
Resistant to standing and ponding water
The ultimate overlay solution
Certified and tested to the highest standards
Can be applied at low temperatures
Tough and durable
Meaningful warranties backed by insurance
Application Areas
The perfect solution, every time
Triflex systems are designed to be the most versatile for use on all structures ranging from public access walkways and stairs to domestic balconies and terraces.
Our waterproofing and surfacing solutions are compatible with virtually all substrates including asphalt and are renowned for their fast installation and rapid cure times, which allows works to be completed with minimal disruption and impact on users.

Stairs and stairwells
With an increase in communal access areas of multi-floor housing and structures, it is not only important to consider the aesthetics of stairs and stairwells but also to increase the safety through design.
Triflex waterproofing and surfacing solutions for stairs and stairwells have been developed to provide a secure, high visibility, anti-slip solution to areas which are often left unprotected.

Refurbishment and new-builds
Our cold liquid applied membrane systems are designed to be applied to the majority of common substrates found on walkways, balconies and terraces. All systems are fully compatible with asphalt and Triflex systems are recognised as the industry leaders in asphalt overlay. The properties of our systems allow the costs, risks, time and disruption associated with the removal of the existing coatings to be eliminated.
When considering a waterproofing and surfacing system or simply surfacing of new-build walkways, balconies and terraces, the Triflex range of systems offer numerous benefits when compared to traditional materials.
The wide choice of system and finish variants allow colour, texture and design to be incorporated from the outset whilst minimising threshold heights compared to traditional systems.

Looking for support, guidance, knowledge, or just a better understanding of our systems and solutions, then look no further.
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Triflex case studies
Downloads
Triflex Walkway, balcony and terrace solutions - brochure
Triflex Walkways, Balconies and Terraces brochure showcasing cold liquid-applied waterproofing and surfacing systems for new-build and refurbishment projects, with decorative finishes, durability and long-term waterproof protection.
12.59 MB, PDF
Frequently Asked Questions
The best balcony and terrace waterproofing system is one that provides long-term protection against water ingress, accommodates structural movement, and delivers a durable anti-slip finish. Triflex systems are cold liquid applied, fully bonded to the substrate, and designed to create seamless waterproof protection for balconies, terraces, walkways and podium areas.
Yes. Many Triflex waterproofing systems can be installed directly over existing waterproofing membranes and failing asphalt, helping to reduce disruption, waste and project costs while extending the service life of the structure.
Yes. Triflex systems offer a range of anti-slip and anti-skid finishes designed to improve safety on walkways, balconies and terraces, helping to reduce the risk of slips and falls in high-traffic areas.
Yes. Triflex PMMA waterproofing systems are fast-curing and can be installed throughout the year. Selected details can even be applied at temperatures as low as -5°C, while system variants continue to cure rapidly at low temperatures.
Cold liquid applied waterproofing creates a seamless membrane that fully bonds to the substrate and complex details. Because no hot works are required, installation is safer and can often be completed with minimal disruption to building occupants.
Yes. Triflex systems can be finished with anti‑slip and anti‑skid surfaces, improving safety and reducing the risk of slips, trips and falls in high‑traffic pedestrian areas.
Yes. Triflex systems are suitable for year‑round installation, curing rapidly even in low temperatures, helping to keep projects on schedule regardless of weather conditions.
Yes. Triflex systems are resistant to ponding water, as well as chlorides, de‑icing salts and approved cleaning products, ensuring long‑term durability in exposed external environments.
Absolutely. Triflex provides a wide range of colours, textures and surface finishes, allowing designers to create bespoke, visually appealing outdoor spaces without compromising performance.
Yes. Triflex systems are independently tested and certified and are available with meaningful warranties, giving long‑term confidence in performance and compliance.































