Harmer AV is a range of high performance metal roof outlets with circular flanges, suitable for all regular flat roofing applications with continuous membranes. There is a choice of outlets with spigot or screw connection for vertical discharge.
Applications
- Provide flat roof drainage for warm, cold and inverted roofs
- For flat roof structures with insitu cast concrete, timber or lightweight metal deck construction
- Ideal for connection to continuous waterproofing systems (single layer, built up felt, mastic asphalt or single ply)
- Designed to connect to individual downpipes
- Not be used in managed rainwater systems
- Screw outlets recommended where connection to outlet occurs within thickness of concrete slab, where a completely gas-tight seal is required
- AV Retro-Gulley outlets available for flat roof refurbishment (removal of old rainwater outlet not necessary)
- AV Multi-Gulley outlets available for variable angle discharge
- Compatible with Harmer SML lightweight cast iron systems and all other types of pipework