Now that the temperature outside has dropped, the windows start to accumulate water vapor. I am assuming that it might also lead to that black stuff forming. Is there a more efficient way of dealing with the condensate than wiping it dry every day?
Now that the temperature outside has dropped, the windows start to accumulate water vapor. I am assuming that it might also lead to that black stuff forming. Is there a more efficient way of dealing with the condensate than wiping it dry every day?
Not the room, but certainly some surfaces. at 65%/20°C the dew point is at about 13°C. Any surface near or below that temperature will collect water droplets. Find those, measure them and then either find a way to get these surfaces warmer or lower the humidity in your room until they are no longer beneath the dew point. If necessary, get an electric dehumidifier. Unless you need to run it all the time, it’s a valid workaround for a few days per year.
Just checked the windows temperatures. Interestingly, the temperature varies quite a bit along the surface of the window. The middle of the window is about 18C but the bottom measures at about 13C, which is exactly the dew point for my 20C / 65% (thanks for the calculator, btw).
Thanks so much for a detailed answer, I will try to follow your advice.