
The Rhenofol Emergency Overflow Drain provides a reliable secondary drainage outlet for flat roof systems, ensuring safe removal of excess water during heavy rainfall. Manufactured from high-quality PVC, it integrates seamlessly into the Rhenofol waterproofing system.
The Rhenofol Emergency Overflow Drain is a precision-moulded PVC outlet designed to act as an auxiliary drainage path for roof surfaces. It prevents standing water buildup and protects roof assemblies against overload during severe weather conditions or blocked primary outlets.
Available in 75 mm and 110 mm outlet diameters, it is fully weldable to Rhenofol PVC membranes for a continuous, watertight connection. For optimal performance, flange surfaces must be cleaned with Rhenofol Thinner D prior to welding.
Key Features & Benefits
Compatibility Notes
Storage & Handling
Store in a clean, dry location. Avoid contact with sharp objects that may damage the PVC surface. Restore product to room temperature if exposed to cold before installation.

Rhenofol by FDT provides high-quality PVC accessories, adhesives, and drainage solutions for flat roof detailing and installation. Trusted across the UK for lasting performance.
