Basics of Daylighting in a Green Environment
The use of natural sunlight, known as daylighting, to illuminate a building can save energy, reduce operating costs, create visual appeal, and enhance occupant health and productivity. The U.S. Green Building Council Leadership in Energy and Environmental Design (LEED™) rating system encourages the use of daylighting to achieve high performance buildings. This course provides an introduction to the use of daylighting in commercial spaces. The course objective is to show why daylighting should be considered, the basic guidelines of using daylighting and some words of caution when using certain daylighting techniques.

4.10 Shading Strategies

Intense sunlight must be controlled for comfort and to control costs. Basic design strategies include:

Exterior Devices

  • Exterior devices are typically the most effective in blocking solar heat gain
  • Design the building to shade itself
  • Use a horizontal shade on south windows
  • Use a vertical shade on east and west windows
  • Give west and south windows shading priority
  • Design shading for glare relief as well
  • Exterior shades should be light if daylight penetration is the key issue while they should be dark if heat gain is the number one concern
  • Use automated, movable shading where the budget allows

Interior Devices

  • Less effective than exterior; heat is already in the building
  • Use light colors
  • Blinds can still let the daylight in

Property of

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