View the Wavin entry on BPindex
Wavin Osma UltraRib is a robust structured-wall gravity drainage system engineered to deliver long-term reliability in demanding below-ground applications. Widely specified across residential, commercial, and infrastructure projects, UltraRib combines exceptional strength, durability, and ease of installation, making it one of the most trusted solutions for adoptable and non-adoptable drainage networks.
Its distinctive ribbed external profile provides superior stiffness and exceptional resistance to ground loads, ensuring the system performs reliably in deep installations, high-traffic areas, or challenging ground conditions where additional reinforcement is required. Inside, a smooth bore optimises flow, minimising the risk of blockages and ensuring consistent hydraulic performance over time.
Constructed from premium PVC-U, UltraRib offers outstanding corrosion resistance and chemical stability throughout its service life. Unlike traditional materials, it is not susceptible to corrosion, abrasion, or biological attack, contributing to a low-maintenance, cost-effective drainage network. Available in diameters from 150mm to 300mm, the system accommodates a broad range of design requirements.
Installation is fast, safe, and straightforward. The secure ring-seal socket and push-fit joint design allow for reliable connections without specialist tools, streamlining workflows and reducing installation time. . The lightweight nature of PVC-U further improves handling and health and safety on site.
Fully compliant with BS EN 13476-3 and accepted by major adopting authorities, Wavin Osma UltraRib meets stringent industry standards for performance and reliability. Its proven track record and strong technical pedigree make it a go-to choice for engineers, contractors, and specifiers seeking a dependable drainage solution for challenging environments.
With a combination of strength, efficiency, and long-term performance, Wavin Osma UltraRib continues to set the benchmark for structured-wall drainage systems in the UK construction sector.