ClassicBond Internal Drain


UK Flat Roofing





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ClassicBond Internal Drain

£31.80 (inc VAT) £26.50 (ex VAT)


ClassicBond Internal Drain


inc. VAT

Ex VAT £11.50



  Same day dispatch if ordered before 12pm


EPDM drain outlets are used to join a rainwater down pipe to the EPDM membrane where the drain runs through the roof deck.

Size Options:
68mm - Fits Standard 68mm Domestic Downpipe
100mm - Fits Standard 100mm Domestic Downpipe
110mm - Fits Standard 110mm Domestic Downpipe

Installation Notes
Cut the drain flange down to leave a 25-35mm flange.
Cut the appropriate sized hole in the roof membrane.
Insert the drain ensuring a positive fit inside the down pipe.
Fix to decking by screwing through the flange into the roof deck using 3 wood screws.
Prime the Internal Drain and surrounding roof membrane with rubber primer.
Cut a piece of 9" Uncured Flashing to place over the internal drain ensuring at least 60mm extra on all sides is bonded to roof membrane
Adhere flashing to drain and membrane using seam roller once the primer is touch dry.
Cut a hole in the flashing making sure not to cut internal drain
Insert leaf guard.


Brand: ClassicBond

Diameter: 100mm

Dispatched Same Day
Delivery 1 - 4 Working Days

SKU: CB-Drain-Int-100

 Same day dispatch if ordered before 12pm


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