Lower the blinds or close the shutters in the hottest hours, between 12 and 16 hours, in the houses facing south and west. With this simple gesture, you can lower the temperature up to 6 degrees. If you have to change the windows, choose the aluminum slats with built-in insulation.
Protect the windows. Up to 30% of the heat comes from them. Using blinds and awnings can help lower the interior temperature of houses a few degrees.
Thermal shutters. They preserve the cold of winter, but also the heat of summer. According to the Almansa group, specialized in aluminum carpentry, blinds with injected polyurethane foam insulation affect thermal comfort and reduce noise.
Unfold the awnings before the sun hits the facade and windows of your house, you will neutralize 80% of the solar radiation and reduce the temperature by 8 degrees. Choose a dark colored awning, much more effective than the clear ones, with a skirt and that are stored in a metal box when picked up.
Ventilate at dawn and dusk so that the new air enters and the reheated air comes out. Create drafts if your house faces two facades and choose thin curtains to let the air pass without losing privacy. Water at dusk the terrace, balcony or patio; heat accumulates on the floor and you will refresh it.
Place curtains of opaque fabrics and vaporize a little with water.
Crossed ventilation. When the outside temperature is one two degrees lower than the inside temperature, open the windows and you will create a current between opposite facades: the best possible passive cooling.
Incandescent bulbs spend 90% of their energy on the heat they emit, so it’s time to get rid of them and change them to LED lights.
Unplug appliances you are not using, as the stand-by releases heat and consumes energy. Avoid putting washing machines and dishwashers during the day and use the oven little.
Fan + ice. If you want to optimize the use of the device, place a container with ice and coarse salt in front of the fan. This will allow the air that passes around to cool immediately.
Avoid the oven and dryer. It reduces heat sources and limits the use of appliances and light bulbs to a minimum. Do not use, if possible, the oven, iron or dryer during central hours, when the temperature is high.