Alumasc Water Management Solutions - Harmer Roof Outlets - Aluminium

Harmer Aluminium Roof Outlets are hydraulically engineered to ensure trouble-free performance, whilst offering versatility and choice for both architects and specifers.

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 Installation & Fixing

Installation & Fixing

• Easy to handle and fix
• Minimal maintenance requirements

Performance

• Lightweight, durable and non-corrodible
• AV® outlets drain up to 40% more roof area than conventional gravity outlets
• High flow performance with increasing head of water at the outlet
• Life expectancy of aluminium: 40 years (rural/suburban areas); up to 25 years (industrial/marine areas)
• Aluminium is 100% recyclable

Materials & Finishes

• Precision cast in aluminium silicon alloy LM6 to BS EN 1559:1997
• Outlet body (fully concealed after installation) is in mill finish aluminium
• Gunmetal specification available for connection to copper pipework and for installation in copper or lead-clad roofs
• Grate is polyester powder coated in blue; clamping collar is coated in yellow
• Domical grates supplied as standard; flat grates are also available

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