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Natural ventilation can still be an option even in hot climates, particularly in hot dry climates. Two techniques can be used to cool incoming air: Evaporative cooling and geothermal cooling.
Besides considerations of thermal comfort, indoor air quality means that the chemical composition of indoor air is clean and fresh. This means avoiding chemical pollutants, particulates, pollen, mold and mildew, pathogens, and other unwanted substances in the air, as well as bringing in new air at an adequate rate.
Night-Purge Ventilation (or "night flushing") keeps windows closed during the day, but open at night to flush warm air out of the building and cool thermal mass for the next day. Night flushing is only suitable for climates with a relatively high temperature range from day to night, like the desert.
Wind ventilation is a kind of passive ventilation, using the force of the wind (or local air pressure differences) to pull air through the building. Wind ventilation is the easiest, most common, and often a least expensive form of passive cooling and ventilation.
Buildings are designed for people, and those people are trying to accomplish a task – whether it’s raising a family, running an office, or manufacturing a product. The building needs to keep people comfortable, efficient, healthy, and safe as they set about their task. Learn about acoustic, visual, and thermal comfort.
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Ventive S is a passive heat-exchanging ventilation system designed for easy home retrofits to increase ventilation while lowering heating requirements.