Estimated lead times
1 Day
Estimated lead times
1 Day
The DuoDrain is a specialist rainwater outlet that can provide a seal both at the VCL and rooftop level. The 'PF' (plain flange) version features a metal flange at VCL level with a variety of membranes at rooftop level. Please see the SBS version if you are using a bitumen VCL.
- Two part outlet, one to seal at VCL level, and the second which fits into the first once the rooftop membrane has been installed
- Factory-bonded membrane at rooftop level for quick and easy installation
- Ideal for new build applications
- Both spigots are manufactured from durable, corrosion-resistant stainless steel
The DuoDrain is a specialist rainwater outlet that can provide a seal both at the VCL and rooftop level. The 'PF' (plain flange) version features a metal flange at VCL level with a variety of membranes at rooftop level. Please see the SBS version if you are using a bitumen VCL.
- Two part outlet, one to seal at VCL level, and the second which fits into the first once the rooftop membrane has been installed
- Factory-bonded membrane at rooftop level for quick and easy installation
- Ideal for new build applications
- Both spigots are manufactured from durable, corrosion-resistant stainless steel
Client Technical Services
Fixfast's technical team provides a range of calculations and technical services to contractors and architects looking to purchase or specify our products. You can find out more about these services here, or register a request below.
Rainwater flow calculations
Flow rate calculations for our FarBo roof drainage systems, in accordance with the UK design standard BS EN 12056:3-200.
