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?
Thank you for the suggestion. My hygrometer shows 65% at about 20C. But the humidity outside right now is like 90% with all the snow and rain. So I guess part of the problem might be that the room is too cold.
See the thing is, humidity is always given relative to the Dew Point in percent. If I assume 0°C for outside with 90% humidity thats 4.6 g/m3 of water. In your room with 20°C and 65% humidity its 11.2347 g/m3
So if you open your windows your humidity will decrease. Warmer air can store more water.
Under ideal conditions you could get to 27% at 20°C which you will never reach, but opening the windows for 5 minutes (ideally two windows on opposing sides of the house to get a good draft) should get you below 55% already. Repeat it three time a day and you will stay below 50% humidity.
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.