ORIENTATION
If your home is oriented to take advantage of warm sun and cooling breezes, you'll achieve greater comfort at lower cost.
In general, ideal orientation means:
you get the right amount of sun - plenty in winter and in cooler climates, not too much in summer and in warmer climates
you're protected from strong/cold winds but can take advantage of breezes to cool your home when it is too warm.
When you're designing a home or planning renovations, there'll also be other considerations such as local climate, view, terrain, vegetation, street access and noise. You'll need to balance these against the benefits you can achieve through harnessing the sun's energy for heating and breezes for cooling.
Positioning for sun
To make the most of the sun for warmth and natural light, your home's main living areas (or any rooms you use a lot) should face north. The main glazing in the house, such as windows, skylights and glass doors, should also face north. Anywhere between 20ºW - 30ºE of true north is fine.
The exact amount of heat your home gets from the sun will depend on the season, time of day, weather, local climate and rate of air pollution. Heat is greatest when the sun is at a high angle relative to the horizon (i.e. it's higher at noon than at dawn or dusk). Heat is also greater in sunny than rainy or cold seasons.
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