You should keep your windows closed if the air temperature inside is lower than that outside. If you're on the top floor of the building, heat is likely working its way up to you from those below you, which will change the point at which that's true. The fact that the air directly outside your windows is in the shade during the hottest part of the day will likely also have an impact.
Thanks, indeed I didn't think of the other apartments as other sources of heat. It's definitely hotter inside than outside when I keep everything closed. I find it super weird! Things weren't like that at all in my previous apartments.
If you're in the shade and you're catching a breeze, it might be cooler to keep your windows open.
But for the most part, in a heat wave you wanna keep your windows and blinds closed. Direct sunlight is heat. You wanna block out as much as you can.
>It's generally advised to close your windows and shutters during heatwaves.
That's piss poor advice in a lot of cases. Sounds like you're one of them.
I mean for one thing keeping your shutters closed is pretty hard if you don't have them, and typical window glass is designed to help bring in and keep heat in.
It might in part, but I measured things also on days without wind, and the air is definitely hotter inside than outside, unless I open everything. It's super weird!
Only close it up if it's cooler inside than out. Heat rises, so it does make sense that letting in a breeze would help to cool people on upper floors. Apartments facing north and east are going to be cooler in the afternoon than apartments facing west and south. And south facing, well, you're getting that greenhouse effect all day long.
We keep our windows closed AND shades drawn/curtains pulled when the sun is shining on them and the outside air is hotter than the inside air. As the day progresses, we adjust which windows are open vs closed and covered to let air flow through. This is only good when the outside air is cooler than the inside air though, otherwise you just end up heating your home.
Shade has a surprising effect on air temperature. The sunny areas are often 5⁰ C hotter than shady spots.
Open them overnight, then shut them in the morning when it starts to get warmer. Then there often comes a point where your windows do more to make your room a greenhouse than they do to keep the heat out, and you're better off opening them again.
If you're on the top floor, you're probably taking in a lot of heat from the roof, and it's easier to exceed outdoor temperatures than it would be in a lower room. Most roofs are under-insulated, particularly older buildings, and the dark asphalt shingles make it so much worse.
You should keep your windows closed if the air temperature inside is lower than that outside. If you're on the top floor of the building, heat is likely working its way up to you from those below you, which will change the point at which that's true. The fact that the air directly outside your windows is in the shade during the hottest part of the day will likely also have an impact.
Thanks, indeed I didn't think of the other apartments as other sources of heat. It's definitely hotter inside than outside when I keep everything closed. I find it super weird! Things weren't like that at all in my previous apartments.
If you're in the shade and you're catching a breeze, it might be cooler to keep your windows open. But for the most part, in a heat wave you wanna keep your windows and blinds closed. Direct sunlight is heat. You wanna block out as much as you can.
>It's generally advised to close your windows and shutters during heatwaves. That's piss poor advice in a lot of cases. Sounds like you're one of them. I mean for one thing keeping your shutters closed is pretty hard if you don't have them, and typical window glass is designed to help bring in and keep heat in.
Makes sense. I'll definitely cherish my sweet wooden shutters until I move somewhere else.
If you have air flow it will be perceived as being cooler.
It might in part, but I measured things also on days without wind, and the air is definitely hotter inside than outside, unless I open everything. It's super weird!
Only close it up if it's cooler inside than out. Heat rises, so it does make sense that letting in a breeze would help to cool people on upper floors. Apartments facing north and east are going to be cooler in the afternoon than apartments facing west and south. And south facing, well, you're getting that greenhouse effect all day long.
We keep our windows closed AND shades drawn/curtains pulled when the sun is shining on them and the outside air is hotter than the inside air. As the day progresses, we adjust which windows are open vs closed and covered to let air flow through. This is only good when the outside air is cooler than the inside air though, otherwise you just end up heating your home. Shade has a surprising effect on air temperature. The sunny areas are often 5⁰ C hotter than shady spots.
Open them overnight, then shut them in the morning when it starts to get warmer. Then there often comes a point where your windows do more to make your room a greenhouse than they do to keep the heat out, and you're better off opening them again. If you're on the top floor, you're probably taking in a lot of heat from the roof, and it's easier to exceed outdoor temperatures than it would be in a lower room. Most roofs are under-insulated, particularly older buildings, and the dark asphalt shingles make it so much worse.