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Preformed shape made from PVC for use with downpipes drainage holes on flat roofs. For use with PVC waterproofing membranes only. Manufactured with smooth flange.

Flexible PVC shape is inserted into drainage hole and bonded to the waterproofing membrane with hot air gun (do not use a direct flame). Outlet shape is placed onto the PVC waterproofing and bonded using adhesive and / or mechanical fixings.

A patch of waterproofing is installed above the outlet flange and fully bonded completely over the top to ensure area is watertight. Drainage outlet is protected by having additional layer and fully sealed.

A round leaf guard should be inserted into top of hole once installed. Always prime both the outlet shape and the waterproofing membrane before installation.

General information



Tough and flexible connector, UV resistant


Polyvinyl chloride


240 x 235 x 26 x 24 x 31 mm

Uniclass 2015
Gravity rainwater outlets (Pr_65_50_35_37)Primary
Digital objects
PlatformCompatibleVersionCertified to
- 1 2.1
Revit 2017 1 2.1
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