Rooflights have a major impact on the energy efficiency of a building. Part L and research demonstrates that installing between 15%-20% rooflights can greatly reduce a buildings CO² emissions.
In order for a building to meet its CO² emissions targets as set out by Part L 2006 a minimum performance standard for rooflights averaged over the whole roof has been set at 2.2W/m²K.
Installing from between 15% to 20% of the roof area in Ritchlight Ultra rooflights is a practical solution to ensure the lighting levels within the building are adequate and will reduce the artificial lighting requirement. The notional building used in the Regulations assumes 15% to 20% roof area in rooflights and research demonstrates that installing less than this amount will make compliance more difficult. Installing from between 15% to 20% of the roof area in Ritchlight Ultra rooflights is a practical solution to ensure the lighting levels within the building are adequate and will reduce the artificial lighting requirement. The notional building used in the Regulations assumes 15% to 20% roof area in rooflights and research demonstrates that installing less than this amount will make compliance more difficult.
Independent research carried out by the De Montfort University shows that in a large volume building, with evenly distributed rooflights and moderate internal heat gains, a rooflight area up to 20% will not cause solar gain.
Rooflights don’t just improve the external environment.They improve the internal environment too. People prefer natural light to electric light and there is a growing body of scientific evidence to suggest that it helps us perform better. Studies have shown that school children learn better, hospital patients recover faster, factory workers are more productive and shoppers linger longer, spending more.
Brett Martin Daylight Systems have published a brochure on Part L 2006 and how rooflights save energy and help compliance. There is also a Mardome Price List available with details of prices of both triple and double skin options. To request a copy of either of these please contact our Coventry office on 024 7660 2022.