Filter By
Shopping Options
Use our rainwater drainage calculator to calculate your property's flow requirements or ‘flow capacity’ of the gutters you're considering purchasing.
Harmer Aluminium Roof Outlets
Manufactured by Alumasc, these Harmer Roof AV Vertical rainwater outlets are designed for use with flat roof structures, using either in-situ cast concrete, timber or lightweight metal deck construction.
Harmer Roof Outlets are ideal for connection to continuous waterproofing systems using single-ply membranes, mastic asphalt, high-performance built-up felt and liquid-applied systems.
Compatible with Harmer SML lightweight cast iron systems and all other types of pipework
