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Roofing Products

Flat Roof Drainage Outlet
"Perforated" Flange

Our flat roof outlets are used for the vertical drainage of rainwater from flat roofs.  

Available in two standard sizes and with either smooth or perforated flanges, the outlets are suitable for either heat welding or adhesive bonding.

Engineered for flat roofs with outstanding durability, flexibility, and easy integration into modern waterproofing membranes — choose the flange style that matches your drainage needs.

Dakota Flat Roof Drainage Outlet Perforated Flange
Dakota Flat Roof Drainage Outlet Perforated Flange
CodeProductTube Length
/Diameter
PkPallet Qty.UM
BOC01-1109Flat Roof Drainage Outlet - Smooth Flange Ø 320mm235mm / Ø 63mm20 pcs.120 pcs.pc.
BOC01-1109FFlat Roof Drainage Outlet - Perforated Flange Ø 300mm235mm / Ø 63mm20 pcs.120 pcs.pc.
BOC01-1111FFlat Roof Drainage Outlet - Perforated Flange Ø 300mm235mm / Ø 100mm20 pcs.120 pcs.pc.
BOC01-1111Flat Roof Drainage Outlet - Smooth Flange Ø 320mm235mm / Ø 100mm20 pcs.120 pcs.pc.