Rooflights and Regulations for Daylighting
Workplace (Health Safety and Welfare) Regulations 1992 state – “Every workplace shall have suitable and sufficient lighting which shall, so far as is reasonably practicable, be by natural light”. These comments are restated in HSG38 – Lighting at Work.
The most effective method of providing even, consistent daylight, particularly in large buildings, is through rooflighting – up to three times more efficient than windows of a similar area. Diffusing materials should be used wherever possible to provide even light distribution and avoid glare. Wall glazing is less effective and can create internal shadows and dark corners. However it does offer good psychological benefits and must not be ignored.