Through wall parapet drains are used as components of external horizontal drainage systems.
Made from special material characterised by high resistance to UV radiation, ozone, and other atmospheric and chemical agents, adapted to TPO membranes.
Due to refining additives, the drains maintain their flexibility and dimensional stability in a wide temperature range.
When installed horizontally, make sure the drain is pitched at a 3 - 5 degree angle.
A) Through wall parapet roof drain – scupper drain
B) TPO membrane
C) Separating layer
D) Levelling layer with pitch