In many Mediterranean climes, it has been the norm for centuries to build properties that keep cool even below a hot, boiling sun. Thick stone walls, modest windows, wooden shutters, awesome tile floors and windows positioned on the northern side of residences have been time-examined approaches of keeping a home in a hot climate great. In fact you’ll discover in most warm climates that builders have realized how to enhance the coolness of residences. In the Southern United States, for instance, broad porches, tall windows, and high ceilings have been utilized to hold the temps down.
Over, a broad porch aids shield windows from direct sunlight. A screened in porch supplies optimal ventilation, without having worry about invading insects from open windows. Ceiling followers keep breezes moving. Ceilings are high, allowing loads of area for hot air to rise.
In the Southwest, thermal mass in the envelope (adobe brick walls) provides a buffer against the extreme summer sun, related to the thick stone walls noticed in the Mediterranean. See below:
In much more temperate climates, a mix of these techniques performs very best. Including:
- Cutting down on direct sunlight in warm months
- Drawing warm air out of the interior
- Tightening a home’s envelope to maintain heat from infiltrating
- Designing spaces that keep the air amazing in the “occupied zone”
For illustration, the 2 houses pictured at the beginning of this submit are from the “From the Ground Up” competition. They are passive homes utilizing very tight envelopes and heat-recovery units. The upper floors sport openings that allow the interior to act like 1 massive chimney. The pop-up that caps the residence has a south-facing window that heats up this zone, assisting to draw warm air up and out of the house.
For those not but willing to stray as well far from standard kinds of architecture, a “ranch-style” house oriented with the length from east to west can effectively perform for passive cooling and heating. This design and style minimizes the home’s direct acquire from the summertime sun although maximizing its winter solar publicity.
Thermal zoning is critical to acquiring a passively-cooled residence to perform effectively. Living spaces ought to be positioned in an area of the house in which they will be amazing or warm depending on the time of yr. In sizzling climates, major residing regions ought to be clustered along the cooler north and east sides of a home. Buffer zones like garages or porches must be placed on the home’s west side to defend interior living spaces from gaining too considerably heat.
The north-dealing with living space in the Australian residence under attempts to function just that sort of magic.
One more critical element of a passively cooled house is the windows. Believe carefully about exactly where the dominant summertime wind comes from, so you can use the prevailing breezes to your advantage. You should also give some thought to the kind of window. Casement, jalousie, and awning windows can act as air scoops, channeling breezes into a home. Windows placed on opposite sides of the residence aid in cross-ventilation, routing air through the property instead of letting it stagnate.
In addition, essentials like insulation and a reflective roof can assist out quite a bit.
If you are smart about your home’s design, it can be remarkably straightforward to survive the summers with out air-conditioning. Your residence will keep naturally amazing with maybe only a bit of support from ceiling supporters. You will keep relaxed, aid save the planet and save a few bucks at the very same time!
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