Light

The walls and roof keep out the natural light that would otherwise flood the space occupied by a building. In constructing a new building or renovating an existing one, we try to make as much use as possible of natural light. Natural lighting is not only free and environmentally-friendly, it is more flattering and restful than artificial light.

Making the most of natural daylight creates a pleasant environment within a building and cuts both costs and carbon emissions. We retain and use original windows whenever possible, adding double- or triple-glazing and insulating to the highest possible standards.

Careful use of windows and skylights can maximise natural light. Positioning of mirrors and reflective surfaces can make the most of all available natural and artificial light. Skylights produce much more light than normal windows for the same area of glass. A skylight can let in up four times as much solar energy (light and heat) as a window the same size. High levels of light are not necessary in all rooms. Bedrooms - particularly adults' bedrooms - do not need bright central lighting.

Even a tiny space can use natural light from windows. Natural light is the best choice for a workspace. To appreciate areas with natural light, it is important to have contrast, with some areas less well lit. Usually, natural light sources must be augmented with artificial light sources for use in hours of darkness.

Background lighting provides ambient light for a whole room. One central light that provides a good level general lighting is the best economic and environmental choice. Task lighting provides a pool of light in a small area to highlight a feature or illuminate a work area, and adds atmosphere to a room.

Lighting homes accounts for 6% of the electricity used in the UK. Making the maximum use of natural light helps to save money and cut carbon emissions. A single central light is more energy efficient than many recessed lights. Using energy-efficient bulbs gives signficant savings in cost and carbon emissions. For further information, download our lighting guidelines.