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Top Lighting. ID 320 – LIGHTINGACOUSTICHVAC Done by: Amjad AlFawaz. Top Lighting . Skylights Monitors Clerestories Provide high quality and high quantity illumination over large area. . Not workable in multistory buildings Doesn’t satisfy view and orientation
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Top Lighting ID 320 – LIGHTING\ACOUSTIC\HVAC Done by: AmjadAlFawaz
Top Lighting • Skylights • Monitors • Clerestories Provide high quality and high quantity illumination over large area.
Not workable in multistory buildings • Doesn’t satisfy view and orientation Top lighting should supplement and not replace windows.
Skylight • Horizontal or slightly sloped openings in the roof. • Direct sunlight needs to be diffused for better visual performance and reducing glare. • Skylight face the summer sun more than winter and collect more heat in summer problem • Glare and heat
Skylight Strategies 1- Skylight Spacing
2- Use splayed openings for better light distribution. 3- Place the skylight high in a space. For light to diffuse and reduce glare
4. Place skylights near walls 5. Use interior reflectors to diffuse the sunlight.
6. Use exterior shades and reflectors . 7. Use steeply sloped skylights to improve the summer/winter balance.
Clerestories • Monitors when the window face two sides • Light Scoops the window face one direction and reflect light with the opposite side
Vertical clerestories has the characteristics of windows rather than skylights • Facing south: collect more sunlight in winter than in summer, can be shaded easily • Facing north: low but constant light with no glare • West and east are to be avoided ;receive more summer sun than winter and hard to shade
Advantage of clerestories diffued light; the result from light reflected off the ceiling • Disadvantage no view
Clerestory strategies 1- Orientation. • Facing south: collect more sunlight in winter than in summer, can be shaded easily • Facing north: low but constant light with no glare • West and east are to be avoided ;receive more summer sun than winter and hard to shade
3-reflective roof. White reflective roofs to collect more sunlight
Other daylighting techniques • Light wells or shafts
Other daylighting techniques • Tubular skylight
Outdoor shading Membrane