Commercial External Venetian Blinds
External Venetian blinds are the main alternative to fabric blinds both retractable however the external Venetian blinds offer a greater ability to alter the light levels. With an external Venetian blind you can control the light from almost black out to a high level of transmitted light. This gives great flexibility with light through changing seasons. They are often used in office buildings in a double facades to reduce cooling costs and allow office workers to work in optimal lighting conditions. There now have been many studies performed on the performance of workers when in balance lighting conditions. Changing the angle of the blinds during the day filters the low sun in the morning and afternoon and allows them to be more open during the day and give occupants a more open view outside.
Installation of external Venetian blinds requires more planning mainly due to the larger stacking space required (generally 3x Roller blinds). Therefore a larger recess will be required in the design of the wall above the window or alternatively the window will require an external box cover of approximate height of 250mm – 350mm x 150mm projection x the width of the window. Like the fabric blinds the system would run on stainless steel guides or aluminium tracks.