The Story
The DEKS Square PVC Parapet Drain is designed to provide an effective horizontal drainage outlet for flat roofs using PVC membrane systems. Allowing rainwater to discharge through parapet walls rather than directly through the roof, this drain creates a secure and watertight connection between the roofing membrane and external rainwater pipework.
The smooth flange enables thermal welding directly to PVC roofing membranes, ensuring a strong and durable bond at the roof surface. Manufactured from high-quality polymer, the drain offers excellent resistance to weathering, UV exposure and environmental conditions while maintaining long-term performance.
Available in 65mm Ć 100/90mm and 100mm Ć 100/90mm outlet sizes, the rectangular outlet passes through the parapet wall and connects directly to standard 90mm round rainwater pipes, making it suitable for a wide range of flat roofing applications.
Key Benefits
⢠Designed for use with PVC roofing membranes
⢠Smooth flange allows heat welding to membrane systems
⢠Provides horizontal drainage through parapet walls
⢠Durable polymer construction for long-term reliability
⢠Resistant to UV exposure, weathering and environmental conditions
⢠Connects directly to standard 90mm round rainwater pipework
Product Specifications
Material: PVC compatible polymer
Drain Type: Square Parapet Drain
Outlet Length: Approx. 425mm
Available Sizes:
65mm Ć 100mm rectangular outlet ā 90mm round pipe connection
100mm Ć 100mm rectangular outlet ā 90mm round pipe connection
Application: Horizontal rainwater outlet through parapet walls for PVC roofing systems

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The DEKS Square PVC Parapet Drain is designed to provide an effective horizontal drainage outlet for flat roofs using PVC membrane systems. Allowing rainwater to discharge through parapet walls rather than directly through the roof, this drain creates a secure and watertight connection between the roofing membrane and external rainwater pipework.
The smooth flange enables thermal welding directly to PVC roofing membranes, ensuring a strong and durable bond at the roof surface. Manufactured from high-quality polymer, the drain offers excellent resistance to weathering, UV exposure and environmental conditions while maintaining long-term performance.
Available in 65mm Ć 100/90mm and 100mm Ć 100/90mm outlet sizes, the rectangular outlet passes through the parapet wall and connects directly to standard 90mm round rainwater pipes, making it suitable for a wide range of flat roofing applications.
Key Benefits
⢠Designed for use with PVC roofing membranes
⢠Smooth flange allows heat welding to membrane systems
⢠Provides horizontal drainage through parapet walls
⢠Durable polymer construction for long-term reliability
⢠Resistant to UV exposure, weathering and environmental conditions
⢠Connects directly to standard 90mm round rainwater pipework
Product Specifications
Material: PVC compatible polymer
Drain Type: Square Parapet Drain
Outlet Length: Approx. 425mm
Available Sizes:
65mm Ć 100mm rectangular outlet ā 90mm round pipe connection
100mm Ć 100mm rectangular outlet ā 90mm round pipe connection
Application: Horizontal rainwater outlet through parapet walls for PVC roofing systems





















