Passive Cooling

There’s more than one way to be cool, and passive cooling allows Crystal Coast homeowners to reduce their energy costs without excess effort.

It’s easy to head straight for the air conditioner on sizzling days and steamy nights, but sometimes low-tech, low-cost options can do the trick. Consider these non-mechanical passive cooling options for beating the heat:


Deciduous trees on your home’s south and west sides provide summer shade, but still lose their leaves to allow low winter sun to reach windows.

Block Direct Rays

Awnings, roof overhangs and exterior shades help reduce interior temperatures by absorbing solar radiation before it hits your windows.

Cook Early & Late

Household appliances such as washers, driers, ranges and ovens generate heat and humidity inside a house. By using these appliances in the morning and evening when it’s cooler, you can help keep operating costs down.


Double or triple-pane windows slow the transfer of warm air, and some window glazings can actually bounce heat back. Take advantage of summer breezes too. Bring in air through a small opening on the windy side of the house and pull airflow to a large window or door on the other side.


Once you’ve generated cooler air inside the house, keep it there as long as possible. Insulate attic floors to keep the hot upper air at bay. Find the places where air sneaks in and out of your home and plug them up with caulk or weather-stripping. These passive cooling measures will allow your home to stay cooler for hours longer.