C O N T E X T 9 5 : J U LY 2 0 0 6 improve your qua l i ty of l i g h t . . . How to preserve and enhance the conservation environment Sponsors of the RIBA Conservation Awards Figure 2 – the Conservation Rooflight® Figure 1 - Traditional cast-iron rooflight Characteristics of a Victorian cast-iron rooflight • Very low in profile - nominally flush to the roof tiles • Single-glazed panels divided into narrow strips by real glazing bars • Fine lines and relatively deep modeling of the putty to the glazing bars and edges • No overtly modern materials used - traditional flashings/soakers • Poor insulation and weather-tightness performance combined with condensation and maintenance problems Characteristics of • Very low in profile - nominally flush to the roof tiles • Double-glazed panels divided into narrow strips by real glazing bars, but with appearance of single-glazing at the cill • Fine lines and relatively deep modeling of silicone replicating the putty to the glazing bars and edges • No overtly modern materials used - traditional flashings/soakers • No condensation problems due to patented Thermoliner® - thermal lining incorporating drainage channels • Proven performance – exceeds BS6375: Part 1:1989 (weathertightness), U Value of 1.7W/m2 K, BS Kite marked glazing • Wide range of ironmongery and glazing options including ActivTM self-cleaning glass Figure 1 is an original Victorian cast-iron rooflight. In order to preserve and enhance a traditional or historic property the visual characteristics of new or replacement rooflights should closely match the original cast-iron ones. In addition modern standards of insulation and weather tightness must be provided. Often modern conservation-style rooflights meet performance criteria, but most fail to match the details of the original cast-iron models due to their broad sections, aluminium fronting and mock glazing bars. The Conservation Rooflight® from the Rooflight Company offers the largest size range in the UK as well as a bespoke design service, which means that any size or shape can be accommodated. For detailed case studies, visit www.therooflightcompany.co.uk or contact 01993 833108 or email [email protected] for a brochure.
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