According to the site manager, I should ventilate each room at least once a day and check the humidity level with a hygrometer. It should be around 40%. I have been ventilating every day for the past three days (heating has been on for three days now) but still can’t really reach 40%. I spend about 3 to 5 hours in the house each time to carefully ventilate and monitor so that the humidity goes down. In 1 or 2 rooms, I do manage to get under 50%. In other rooms, it stays around 60%, and in the guest toilet and storage/mechanical room (basically one space with an open connection), it’s closer to 70%. Before ventilating, it’s usually around 90%.
Is this normal? Am I doing something wrong? What should I do differently?
The storage/mechanical room has two windows on the same wall, basically one window per space (the rooms are only separated by an open passage). Can I open both windows at the same time here to increase air flow? For the hallway, which only has the front door, does that mean I should open the front door or just focus on ventilating the rooms?
Thank you!
Is this normal? Am I doing something wrong? What should I do differently?
The storage/mechanical room has two windows on the same wall, basically one window per space (the rooms are only separated by an open passage). Can I open both windows at the same time here to increase air flow? For the hallway, which only has the front door, does that mean I should open the front door or just focus on ventilating the rooms?
Thank you!
Hello.
Don’t focus on the numbers.
Start at the bottom, open all the windows, then move upstairs.
The only thing you should observe now is the window panes.
As soon as they are no longer fogged up, close the windows. Done.
And repeat this as often as possible.
If it suddenly gets cold again, ventilate for shorter periods but more frequently.
The goal is to remove moisture, not heat.
Don’t focus on the numbers.
Start at the bottom, open all the windows, then move upstairs.
The only thing you should observe now is the window panes.
As soon as they are no longer fogged up, close the windows. Done.
And repeat this as often as possible.
If it suddenly gets cold again, ventilate for shorter periods but more frequently.
The goal is to remove moisture, not heat.
If you open only one window, how is the air supposed to circulate and the humidity decrease? Strange advice to ventilate room by room. Open all windows for 5 minutes, then you’ll have humidity below 40% (provided it’s not too cold inside the house), repeating this 2-3 times a day as you have time.
...and why should it be 40% humidity??? Do you have a timber frame prefab house? Especially towards the end, you won’t even reach 60%, then it will be like a sauna upstairs.
How is anyone supposed to achieve those values in summer? There is no standard procedure for that, except airing out cross-ventilation several times a day, so don’t make it more complicated than it is.
How is anyone supposed to achieve those values in summer? There is no standard procedure for that, except airing out cross-ventilation several times a day, so don’t make it more complicated than it is.
Vicky Pedia6 Apr 2020 20:12Please disregard such figures. In a newly built house, it is only temporarily possible to achieve relative humidity (RH) below 40% because there is too much residual moisture in the structure. This will remain the case for about one year. Regardless of the season, it helps to ventilate by fully opening windows for a few minutes 2-3 times a day (and only that), and to wipe down the window frames—every drop counts. The combination of heat and ventilation is the key.
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