Large windows in offices and public buildings are a common feature today, they give a bright and friendly atmosphere.

However they may contribute an unsatisfactory working environment by:
- creating too much solar energy which can heat up rooms.
- causing glare and dazzle making it difficult to work at VDU screens.

This can result in stress and fatigue to personnel and be an adverse factor for health & safety Where air conditioning is in use it can increase the amount of energy. Sun protection is also important in Schools, Hospitals, Nurseries and Homes for the Elderly.

Solar Blinds need not be obtrusive but can blend in with the surroundings, and should not obstruct the view from the buildings. The are easy to handle and installed at different levels. For large area they can be fitted with solar sensors and motorised.

The material can be of various strengths from blackout to nearly opaque.