CGL Weather Protection Systems (Gutters)




	PRODUCTS: CGL Membrane-Lined Gutter Systems Click here to download data sheet CGL is the UK market leader in the design and manufacture of industrial and commercial secret gutter systems. In 1980, the oil crisis precipitated a demand for more thermally-efficient cladding systems and components and CGL reacted by inventing and patenting insulated membrane-lined gutter systems. These products have evolved over the years since 1980 to provide a sophisticated range of gutters which can meet specifier and contractor needs structurally, hydraulically, thermally, and, more recently, in the aspect of heat loss at the interface with varying roof systems. Recently amended Building Regulations are driving greater product improvements to deal with heat loss and CO2 emissions and CGL Systems has reacted to these demands via continuous product improvement. The systems features are - Proven leak-free over 25 years experience In-house structural, thermal, and hydraulic design to architects and contractors Standard and thermally-broken options available System warranty available Lined with the best membrane - Sarnafil G410 12EL - 1.2mm thick Alternative U-values available LPC /FM approved insulant used as standard Gutters can be used as walkways without damage Anticipated life in excess of 35 years GENERAL DESCRIPTION The systems are internal (or secret) gutters which form part of the overall roof envelope and therefore require to be insulated to the same value as the roof. Thus typically the gutters will be valley gutters or eaves gutters hidden behind an eaves parapet wall. Regularly, however, such secret gutters can be placed externally to the insulated envelope of the building, but hidden by a feature fascia, and in this case CGL can offer single-skin, uninsulated, membrane-lined gutters which share the critical feature of being leak-free. DESIGN Although standard components and performance are defined below, CGL Systems will undertake in-house design to amend structural, thermal, hydraulic, or fire performance characteristics of CGL Membrane-Lined Gutter Systems to meet project requirements. COMPONENTS Galvanised steel substrate to BS EN 10142; gauge selected to suit width and support available. Typical upper metal skin is 1.2mm and soffit 0.6mm thick White painted galvanized steel soffit available Insulant: Standard 87mm thick polyisocyanurate giving 0.25 U-value; CFC and HCFC free, LPC/FM approved. Membrane: 1.2mm thick Sarnafil G410 12EL bonded to upper metal skin; light grey standard colour with dark grey as alternative. Sealants: Gutter joints are formed by hot air welding of the pvc overlap to the abutting gutter section. No sealants are required. Gutter straps: Generally, support straps are not required as CGL gutter systems are self-supporting on adjacent steelwork. In certain cases, straps may be required in which case these are typically galvanized-after-made 50 x 6mm flat bar. Stop ends: either insulated or plain, these are factory fitted by CGL Corners, T-pieces, etc: these components are factory made by CGL Outlets, sumps, etc: these components are stocked in standard sizes or made as non-standard by CGL WARRANTY CGL Systems Limited offer warranties of alternative time periods based upon building environment and design requirements. Minimum warranty period is 10 years with extensions to 25 years possible by negotiation. HOME PAGE