FarBo® flat roof outlets


Efficient rainwater outlets for flat roofs


FarBo is a highly effective flat roof drainage system designed to manage rain water, protecting the building against water ingress and preserving its longevity.


FarBo® roof drainage system is manufactured from high grade, corrosion resistant A4/316 stainless steel and is available with a range of different membranes to suit the waterproofing membrane on the roof. It is suitable for use in virtually every flat roofing drainage application.

Designed to be different

Factory bonded membrane flange

The outlet is supplied with a factory bonded membrane flange to match the waterproofing membrane used on the roof, ensuring a completely watertight seal.

Sealed against water back-up

The ‘O’ ring seal prevents any water back-up from leaking between the spigot and downpipe.

Highly versatile

Comprehensive range of sizes, 400mm or 600mm long spigots, a variety of leaf guard options and an extensive range of membranes ensure FarBo® is suitable for most applications.

Quick and easy installation

One-piece unit which is quick and easy to install, with no need for a clamping ring or specialist installation tooling.

Flush finish

Prevents ponding around outlet opening.

Corrosion resistant

FarBo® outlet spigots are manufactured from high grade A4/316 grade stainless steel, ensuring they are highly resistant to corrosion, tarnishing and stress.

Code Explainer

Technical support

The Fixfast technical team is on hand to help you at any stage of your project from feasibility design through to final specification and tender.


We provide detailed technical reports on request, including rainwater flow rate calculations to BS EN 12056:3-2000. Product datasheets are available.

Efficient drainage systems for flat roofs