Light
Light affects the human body in a number of ways and effects mood, behaviour, and even hormonal balance and not least how well we are able to see. The University of Surrey Sleep Research Centre has also carried out studies in office environments and has found that the correct lighting can improve employee alertness and productivity.
Creating workspaces than maximise natural light should be the first consideration as windows not only provide the best type of light they also connect us with the outside world which also has a positive impact. Several studies from the past 10 to 15 years also show that the view from the window can greatly improve our sense of well-being. However, careful consideration should also be given to screening in order to control natural light on sunny days, reducing glare and solar gain.
It is not always possible to naturally light to the full depth of a floor plate, but there are ways to bring natural light into deep spaces, for instance you could consider piping natural light into a room.
Artificial light cannot be discounted particularly in the winter months, but our philosophy is to reduce the requirement for artificial lighting where possible while maximising natural light and to specify lighting systems that provide a comfortable working environment, wherever practicable.
Artificial lighting accounts for around 14% of the average electricity bill in office buildings, therefore designing more efficient and effective artificial light not only saves energy, but will substantially reduce the building’s running costs, while also reducing the demand for cooling.
Specifying energy efficient light fittings and movement or light sensors (that can monitor occupancy and Lux levels), although a slightly higher initial outlay can have a significant impact on the overall energy use of an office. While providing lighting controls at desks, can give employees the responsibility of their own environment, generally leading to improvements in accuracy and alertness, and tends to lower overall lighting loads and costs.
Design options to maximise light
- Use large aperture windows wherever possible, with solar shading.
- Use glass dividers to open plan spaces, or where this is not possible use transparent or semi-transparent screening.
- Specify energy efficient light fittings and movement or light sensors that can monitor occupancy and lux levels.
- Providing lighting controls at desks giving employees responsibility for their own environment.
- Specify controllable daylight blinds that distribute light deeper into the space.