text: Design guidelines are offered in building regulations and other related literature and include a variety of recommendations on many specific areas such as:
  * Building location and orientation
  * Building form and dimensions
  * Indoor partitions and layout
  * Window typologies, operation, location, and shapes
  * Other aperture types (doors, chimneys)
  * Construction methods and detailing (infiltration)
  * External elements (walls, screens)
  * Urban planning conditions
  The following design guidelines are selected from the Whole Building Design Guide, a program of the National Institute of Building Sciences:
  * Maximize wind-induced ventilation by siting the ridge of a building perpendicular to the summer winds
  * Widths of naturally ventilated zone should be narrow (max 13.7 m [45 feet])
  * Each room should have two separate supply and exhaust openings.  Locate exhaust high above inlet to maximize stack effect.  Orient windows across the room and offset from each other to maximize mixing within the room while minimizing the obstructions to airflow within the room.
  * Window openings should be operable by the occupants
  * Consider the use of clerestories or vented skylights.