K
KellerMaus11 Apr 2024 20:11Hello,
we recently moved into a house that had been vacant for about 6 months, and we want to convert the basement party room into a home office/guest room. After placing a hygrometer downstairs, we noticed that the humidity level is between 69 and 72 percent, which is definitely too high.
In principle, the basement itself is not damp, and there are no visible wet or moist spots.
Currently, the basement is not heated, but we would like to change that later.
1) How useful is it to proactively insulate the room with, for example, Knauf Rotkalk in-Board Climaprotect 416x625 mm (16.4x24.6 inches)? At the moment, the basement party room is fully paneled with wood on the inside.
2) Would simply heating the room and regularly ventilating be sufficient?
Best regards
we recently moved into a house that had been vacant for about 6 months, and we want to convert the basement party room into a home office/guest room. After placing a hygrometer downstairs, we noticed that the humidity level is between 69 and 72 percent, which is definitely too high.
In principle, the basement itself is not damp, and there are no visible wet or moist spots.
Currently, the basement is not heated, but we would like to change that later.
1) How useful is it to proactively insulate the room with, for example, Knauf Rotkalk in-Board Climaprotect 416x625 mm (16.4x24.6 inches)? At the moment, the basement party room is fully paneled with wood on the inside.
2) Would simply heating the room and regularly ventilating be sufficient?
Best regards
HausKaufBayern11 Apr 2024 20:52At what temperature do you have a humidity level of 70? 18 degrees Celsius (64°F)? If it is only at 15 or 16 degrees Celsius (59 or 61°F), I think heating would already help quite a bit. Alternatively, perhaps a dehumidifier?
K
KellerMaus11 Apr 2024 21:10The current humidity is about 70% at 13 - 14°C (55 - 57°F).
Since we are completely new to the house, we can't really assess the situation yet. About six months ago, the surveyor who measured the moisture in the walls said everything was "okay."
I have also considered a dehumidifier, but that doesn’t seem like a long-term solution, right?
Since we are completely new to the house, we can't really assess the situation yet. About six months ago, the surveyor who measured the moisture in the walls said everything was "okay."
I have also considered a dehumidifier, but that doesn’t seem like a long-term solution, right?
KellerMaus schrieb:
Currently 13 - 14°C (55 - 57°F).= 54% at 18°C (64°F) = 50.5% at 19°C (66°F) => Time to heat!K
KellerMaus11 Apr 2024 22:01So, does that mean you probably don’t need any additional insulation? Just replaster the walls, paint them, install the heating, and that’s it?
It depends on whether the home office will be used during the winter as well. Uninsulated walls will be cold then. If you spend time there regularly, the indoor air will also get more humid, and the key factor becomes not just the air temperature but the dew point, which rises as the absolute humidity in the indoor air increases.
At some point, the dew point gets so high that the wall becomes colder, and condensation forms on the wall. This can turn into actual dripping, especially if you stop heating in the evening because no one is there anymore.
So, if the room is going to be used regularly and throughout the year, I would recommend insulating.
With interior insulation, however, you need to work very precisely. Others might have more to say on that.
At some point, the dew point gets so high that the wall becomes colder, and condensation forms on the wall. This can turn into actual dripping, especially if you stop heating in the evening because no one is there anymore.
So, if the room is going to be used regularly and throughout the year, I would recommend insulating.
With interior insulation, however, you need to work very precisely. Others might have more to say on that.
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