Scupper drains provide a means for water to flow off roofs surrounded by parapet walls. We offer thre superior quality cast-aluminum scupper drains with spigot ends that can be coupled to 2”, 3”, or 4” pipe. They can be installed in two positions: either with the outlet pipe passing through the parapet wall or with the outlet pipe passing through the roof deck. The center of a scupper drain should not be closer than 12” from a corner.
STEP 1: Install the drain base flush and
apply adhesive to the rubber and the roof.
STEP 2: When the adhesive has dried, apply
Silicone Caulk for EPDM to the drain base flange.
STEP 3: Adhere the rubber, pressing firmly
into the corner where the roof and wall meet.
STEP 4: Lift the rubber onto
the wall and press it into place.
STEP 5: Trace the opening in the base
and position the clamping plate on top.
STEP 6: Carefully cut a slit through
each hole in the clamping plate.
STEP 7: Thread the mounting screws through
the slits and into the base plate flange.
STEP 8: Tighten the screws securely to
spread the caulk over the base plate flange.
STEP 9: Cut out the rubber within the
clamping plate, exposing the opening below.
STEP 10: Position the drain guard unless
it will interfere with the roof covering.
STEP 11: Secure the drain guard
with the two screws provided.