FLAGON PVC membranes provide a high‑performance waterproofing solution engineered for demanding roofing, civil engineering, and below‑ground applications. Designed for durability and long‑term structural protection, these PVC waterproofing membranes deliver exceptional resistance to UV exposure, chemicals, puncture, and extreme temperatures—making them one of the most reliable systems on the market.
Key characteristics include:
- Reinforced PVC‑P construction for mechanical strength
- High resistance to UV, weathering, and environmental exposure
- Suitable for fully adhered, mechanically fixed, and loose‑laid systems
- Compliant with AS 4654 and supported by BBA and BRANZ approvals
Superior Waterproofing Performance
FLAGON PVC membranes create a continuous, watertight barrier that protects buildings and infrastructure from moisture intrusion. Their reinforced structure ensures dimensional stability and long‑term performance, even in harsh environmental conditions.
Engineered for Complex Applications
Whether used on flat roofs, green roofs, tunnels, foundations, or large‑scale civil engineering projects, FLAGON PVC adapts easily to complex detailing and installation requirements. Its flexibility and weldability help installers achieve consistent, high‑quality seams and faster installation times.
Certified Performance You Can Trust
FLAGON PVC systems are engineered to meet and exceed rigorous global and local standards. They comply with Australia’s AS 4654, while also being BBA certified and BRANZ appraised, offering specifiers, installers, and asset owners confidence in their long‑term reliability and compliance. SOPREMA manufactures these membranes according to the principles of sustainable construction—ensuring minimal environmental impact without compromising performance.
Built to Withstand Harsh Conditions
The advanced PVC formulation offers strong resistance to:
- UV degradation and weathering
- Chemical exposure in industrial environments
- Mechanical stress, impact, and puncture
- Temperature fluctuations and thermal movement
This makes FLAGON PVC a dependable choice for both new construction and refurbishment projects.
Proven in Global Infrastructure Projects
With decades of successful performance across major architectural and infrastructure developments, FLAGON PVC membranes are trusted by contractors, engineers, and designers worldwide. Their track record demonstrates reliability, longevity, and consistent waterproofing integrity.
Sustainable and Low‑Maintenance
FLAGON PVC systems are lightweight, recyclable, and designed for long service life, reducing maintenance requirements and lifecycle costs—key factors for sustainable building strategies.
Part of Australia’s Largest Projects
In addition to the FLAGON PVC’s exceptional performance, it has also proven its performance on major infrastructure works, including its selection to waterproof the Sydney Metro — Australia’s largest public transport project. This real‑world validation underscores the system’s reliability, adaptability, and superior technical performance in high‑stress environments.
A Complete, Sustainable Waterproofing Solution
Furthermore, from reinforced membrane technologies to options incorporating non‑woven felt supports or glass fibre reinforcements, the FLAGON PVC range offers solutions tailored to specific design needs. SOPREMA’s sustainability commitments ensure that every FLAGON product is manufactured responsibly, supporting long‑term building performance and modern environmental expectations.
Our FLAGON PVC Systems
| FLAGON PVC Single‑Ply Roofing Membranes | FLAGON BSL – Below‑Ground PVC Membrane | FLAGON S / SR – Roofing & Detailing Membranes |
|---|---|---|
| FLAGON PVC single‑ply roofing membranes are high‑performance PVC‑P sheets designed for long‑term waterproofing across commercial and industrial roofs. Manufactured in both reinforced and unreinforced formats, they offer strong UV resistance, excellent dimensional stability, and high puncture strength, making them suitable for exposed, mechanically fixed, fully adhered, or loose‑laid systems. Their flexible PVC‑P formulation allows reliable hot‑air welding and consistent seam integrity, while their natural fire‑resistant properties support compliance with modern building standards. These membranes are commonly used on flat roofs, green roofs, and refurbishment projects where durability, ease of installation, and proven weathering performance are essential. | FLAGON BSL is a co‑extruded, dual‑coloured PVC‑P membrane engineered specifically for below‑ground and civil engineering waterproofing. Its two‑layer construction features a light green signal layer that highlights any installation damage, paired with a dark grey base layer that delivers high puncture resistance, flexibility, and long‑term watertightness. Available in robust thicknesses such as 2.0 mm and 3.0 mm, FLAGON BSL is resistant to micro‑organisms, root penetration, and chemical exposure commonly found in soil and groundwater. It is designed for use in tunnels, foundations, retaining walls, and cut‑and‑cover structures, offering excellent weldability and compatibility with compartmentalised waterproofing systems. | The FLAGON S and FLAGON SR membranes are specialised PVC‑P sheets developed for roofing systems and detailed waterproofing work. FLAGON S is an unreinforced, highly flexible PVC‑P membrane ideal for corners, penetrations, and complex shapes where adaptability is essential. FLAGON SR, by contrast, incorporates a polyester mesh reinforcement and a signal layer, providing superior mechanical strength, UV resistance, and wind‑uplift performance for exposed roofing applications. Both membranes are tested for durability under UV exposure, temperature extremes, and mechanical stress, and are available in multiple thicknesses and colours to suit architectural and performance requirements. |
| Typical Applications: Exposed flat roofs, Green roofs and planter boxes, Refurbishment projects, Warm roof systems | Typical Applications: Tunnels and buried galleries, Cut‑and‑cover tunnels, Foundations and retaining structures, Underground car parks | Typical Applications: Exposed roofing systems, Mechanically fixed roofing, Vertical and horizontal waterproofing, Detailing and upstands |