The first answer is one of technology: nowadays many people are equipped with an air conditioner or fan.
The use of these devices, however, greatly affects power consumption and literally "shoots out" an extra burst of hot air outside.
The most complete solution can be implemented when the house is still in the process of design or restructure.
Only in this case, you can carefully plan the orientation of glazed surfaces, thus ensuring the maximum possible flow of light inside, but at the same time blocking, the direct impact of the sun.
When temperatures become unbearable at home is there any way to be able to act from inside?
1. If in the living room or the kitchen you have leather-covered seats, you can cover these with cotton sheets, because the leather naturally creates more heat.
2. When you are about to open the windows to aerate the walls, it is better to remove every type of carpet, mat or runner from the floor because, in this way, they get refreshed much faster.
3. For the dining table it is better to use tablecloths made of natural fibre, which possess higher transpiring properties.
4. Significant sources of heat are the common incandescent bulbs, which affect energy consumption more so than the low consumption (fluorescent) ones.
You can then replace them, or you can try to limit the quantity used and limit the amount of time they are used.
5. Avoid cooking hot meals at noon and try to use ovens and hobs only at night.
6. Open windows for refreshment or close them to keep out the heat?
You must use both options, the important thing is not to make mistakes with the timing: from the early mornings it is best to keep the shutters of the windows down, especially the ones exposed to the sun; in the evenings (no earlier than 18:00pm or even better later), you can open the windows to try to generate (as much as possible) a refreshing breeze.