Lock It Down
Close up the whole house. Do not let heat into the house in the first place. Close up all the windows and doors before everything heats up. You do not necessarily need to shut the windows but maybe use Holland blinds or screens because closing everything will deprive you of fresh air which will make you feel really suffocated. But using Blinds and shutters will keep the heat out while still allowing some fresh air into space.
Check the Roof
Insulating the roof is a good option and it works as a long-term investment too. The insulation acts as a barricade that prevents the heat from getting in thus keeping your house cooler. Otherwise, hot air would get trapped in the cavities between the roof and the ceiling thus heating up the whole house. Another big roof project that can be done as an investment and is always effective in cooling a space is to raise the height of the ceiling. Doing this dispels hot air and does not allow it to over-heat the house. Hot air rises, so the more ceiling height you have the less likely you will begin to feel suffocated.
Get an AC Unit
Opt for Air-conditioning as it is the quickest way to cool down space. But if you have an AC unit you need to be sure that there aren’t any gaps in the ceiling, windows or doors that allow the cool air to seep out. Although air-conditions are not the most eco-friendly and cost-effective, they do help you rapidly cool a space when necessary. So if your house does not have an AC then maybe you should consider getting one if you are struggling to survive the heat and if you can afford to. AC units are not as cheap as using let’s say window blinds. So choose what works within your budget and do your best to bear the terrible heat.
I honestly hope that these suggestions help you keep your home cool so that the heatwaves become more bearable. Remember to stay hydrated! Keep drinking plenty of water and do not stay out in the sun for too long. Because otherwise, you could risk overheating your body and getting heat stroke or something worse. So take all the necessary precautions to protect yourself.