Light - Natural

• Maximise Natural Daylight in all habitable spaces, to reduce energy usage, improve the indoor amenity and create a pleasant environment. 
• Discomforting glare and brightness contrasts must be avoided.
• Learning Spaces should facilitate the use of audio-visual learning aids.  Provide brownout function to spaces as nominated in the individual room data table.
• Movement Areas will require natural and/or artificial light to at least BCA minimum.
• Consult an Electrical Engineer for artificial lighting design.          

Access to high levels of daylight must be ensured for at least 40% of primary occupied spaces per floor. As prescribed within Green Star, a space is considered to have high levels of daylight if:

• the space has minimum 160 lux due to daylight during 80% of the nominated hours

OR

the following requirements are met:

• No overshadowing – external shading should not impinge on the direct 25 degree line from centre of the window
• Minimum 40% Visual Light Transmittance (VLT) for building glazing