Rooflights save energy
Independent research proves conclusively that rooflights can save energy in many applications, and the greater the rooflight area the greater the potential savings.
The amount of energy needed to light a building artificially is often much greater than the amount of energy used to heat it, and is often the greatest single energy use in operating the building.
When used in conjunction with automatic lighting controls to turn the electric lights down, or off, then rooflights can have a major impact on the overall energy consumption of a building, cutting energy costs by reducing need for use of the electric lights.
Rooflights are usually less well insulated than the surrounding opaque areas of the roof, but have very little effect on the total energy required for heating, as the beneficial effects of passive solar gain compensates for the poorer insulation.
Electricity used for lighting is much more expensive in terms of CO2 than gas used for heating, so that including large areas of rooflights is one of the single most effective ways of improving the environment.
Using rooflights to provide a bright, naturally lit interior will save money, provide a more pleasant environment people want to spend time in and contribute to the government’s target to reduce emissions of CO2.
Documents containing detailed information on this subject can be downloaded from this website: