Semi rigid air ducting S90

What is S90 Ducting?

Plumbavent’s S90 Semi-Rigid 90mm ducting matches metal duct performance while being flexible, quiet, and easy to install. It offers low air resistance and acoustic benefits, making it ideal for high-efficiency ventilation setups.

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Easy to Install

S90 semi-rigid ducting is lightweight, flexible, and designed for hassle-free installation. It bends around corners, clips into place, and connects with simple fittings. It’s perfect for new builds or retrofits, whether installed by DIYers or professionals.

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Plumbavent S90 ducting  showing flexibility
This 125 diameter duct is used to extend the ceiling plenum up to 500mm. It is glued onto the ceiling plenum with plumbers glue. It can be cut to any length when fitted.   part no  PD-R-125-0.5

BRE-Approved

S90 ducting is SAP Appendix Q and BRE-approved, meaning it performs as well as metal ducting. It meets EN 13180 for hygiene and airflow. This ensures reliable, airtight, and efficient performance—ideal for homes targeting energy ratings like BER or Passivhaus.

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Fittings

You'll need S90 connectors, clips, vaned bends, manifolds, and plenums to create a fully airtight and efficient system. These fittings are designed for tool-free assembly and low resistance, helping systems perform like rigid metal ductwork without the complexity.

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Plumbavent S90 semi-rigid ducting Semi rigid ducting EN 13180:2004 strength Sap Appendix Q listed Anti static inner layer Anti Bacterial inner later Smooth inner layer for reduced resistance.
Plumbavent S90 semi-rigid ducting Semi rigid ducting EN 13180:2004 strength Sap Appendix Q listed Anti static inner layer Anti Bacterial inner later Smooth inner layer for reduced resistance.

Internal Flow Vanes

S90 bends include internal flow vanes that gently guide air around corners, reducing turbulence and noise. These vanes maintain static pressure and efficiency—mimicking commercial metal ducting in a compact, user-friendly format.

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Plumbavent Machines

Plumbavent supplies Genvex MVHR systems - renowned for efficiency, durability, and quiet performance. These machines offer advanced heat recovery, summer bypass, and smart controls, and are backed by decades of use across the UK and Ireland.

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