Not sure how true that is, although I don’t understand how, one side of my house is noticeably cooler than the rest and it has stayed like that throughout the heatwave even without turning on the ac
True, but we’re at the time of year when there’s way more daylight than night, so it’s a war of attrition with the hot day winning no matter what you do.
If it’s a couple days maybe, but in a heatwave everything will heat up eventually.
Not sure how true that is, although I don’t understand how, one side of my house is noticeably cooler than the rest and it has stayed like that throughout the heatwave even without turning on the ac
maybe you have some kind of natural evaporative heatsink nearby (trees) or perhaps inside
No trees (unfortunately). I even have a commercial laundry right next to that side that is constantly expelling very hot air around.
Is it the North side? Maybe painted a different color?
South/east, but there is a building right next to it that gives it some shade during the end of the day.
you can open windows during night, as long as night air temperature is tolerable
That’s your lower bound, but you need to have fans everywhere to replace all air and cool down your walls to the air temperature.
Night air in a 40°C heatwave isn’t going to be particularly cold, especially when you just passed the longest day in the year.
True, but we’re at the time of year when there’s way more daylight than night, so it’s a war of attrition with the hot day winning no matter what you do.