Where should windows be placed in a building?
Careful placement of windows, in an effort to protect them from sun and wind, can reduce this energy waste. Windows and doors placed on the east or west can waste twice as much energy as those placed to the north or south. It is best to orient the house with the longest walls facing north and south.
Where should windows be placed in a room?
Placing the window four or more feet above the ground is crucial to avoid blinding sunlight. If possible, position the window so it's facing north or south rather than east or west. Harsh sunlight can stream through an east- or west-facing window, making it difficult for you to see your computer.