STUDIES OF SUNLIGHT

Studiesofsunlight-class(room)

7:00 am 7:00 pm

Shadow diagram The sun's rays cause heat gain in buildings. Heat gain and heat loss are affected by the position of the sun. Daylighting provides an opportunity to reduce the use of artificial lighting. The use of natural light in buildings has become an important strategy to improve energy efficiency by minimising lighting, heating, and coolingloads. A sun-path diagram and a percentage overshadowing are of immense use to understanding the effects of shading. Buildings can also be shaded to prevent solar radiation from reaching different surfaces, particularly windows.