Hello,
I have been living in my newly built house (a three-gable house) for one month now. It was built according to the 2013 Energy Saving Ordinance. I have underfloor heating but no ventilation system. To meet the requirements of the Energy Saving Ordinance, my insulation values had to be 15% better than the standard at that time. The thickness of the exterior wall insulation meets the latest standards and actually exceeds the 15% improvement. Airtightness is also ensured. The attic was insulated accordingly as well. Construction dryers were used during the building drying phase. After one month of living here, the relative humidity is usually between 50-60%, even when the bedroom and bathroom are occupied.
Now to my problem. Although, for example, the bedroom temperature is 20°C (68°F), it feels much colder to me. Right now, at 5:30 a.m., the humidity is 55% and the room temperature is 20°C (68°F). Still, I get a damp feeling. Even the duvet feels damp. Underneath my blanket, I am practically sweating, but the surrounding air feels much colder. It shouldn’t be radiation coldness from the window (there is one triple-glazed window) or from the walls (which have the described top-level insulation).
Everyone I ask says this feeling will go away over time. The building is very new, and there is probably still a lot of moisture bound in the structure that needs to dry out first. I also keep hearing about moving in only in the third year, and having friends or family live in the house in year one and two for drying purposes.
Could the cold sensation really be caused by only 55% humidity according to the hygrometer? Or what else could be causing this? Thank you very much.
I have been living in my newly built house (a three-gable house) for one month now. It was built according to the 2013 Energy Saving Ordinance. I have underfloor heating but no ventilation system. To meet the requirements of the Energy Saving Ordinance, my insulation values had to be 15% better than the standard at that time. The thickness of the exterior wall insulation meets the latest standards and actually exceeds the 15% improvement. Airtightness is also ensured. The attic was insulated accordingly as well. Construction dryers were used during the building drying phase. After one month of living here, the relative humidity is usually between 50-60%, even when the bedroom and bathroom are occupied.
Now to my problem. Although, for example, the bedroom temperature is 20°C (68°F), it feels much colder to me. Right now, at 5:30 a.m., the humidity is 55% and the room temperature is 20°C (68°F). Still, I get a damp feeling. Even the duvet feels damp. Underneath my blanket, I am practically sweating, but the surrounding air feels much colder. It shouldn’t be radiation coldness from the window (there is one triple-glazed window) or from the walls (which have the described top-level insulation).
Everyone I ask says this feeling will go away over time. The building is very new, and there is probably still a lot of moisture bound in the structure that needs to dry out first. I also keep hearing about moving in only in the third year, and having friends or family live in the house in year one and two for drying purposes.
Could the cold sensation really be caused by only 55% humidity according to the hygrometer? Or what else could be causing this? Thank you very much.
M
MatzeGalle11 Mar 2017 14:24What I wanted to add is that my main concern isn’t saving energy. My problem is that I haven’t been able to sleep a wink for two nights because the indoor climate is really bothering me... 20°C (68°F) air temperature, outside the duvet I’m freezing cold, but underneath it I’m sweating buckets. None of this makes sense, does it?
K
Komposthaufen11 Mar 2017 17:10MatzeGalle schrieb:
))))....is the "only" 20 °C (68°F) meant sarcastically (I actually only need about 17-18° (63-64°F) in the bedroom) or should the heating really start with higher temperatures?..(cold air can hold more moisture, right??). At the moment, I can hardly get the temperature below 20° (68°F). The heat seems to be rising from below into the bedroom. The double door between the living room/dining room/kitchen (open-plan living) and the hallway, leading to the first floor, is still missing... It's actually the other way around. Warm air holds more moisture. So: heat and ventilate.
Good luck.
No, that wasn’t meant sarcastically... at around 20°C (68°F), you can hardly air out properly, so the moisture stays inside... I understand that you actually want or need different temperatures for sleeping... but if you can’t sleep because the room is too damp, then you have no choice but to turn up the heating and ventilate several times a day to get the moisture out of the building...
Hello,
Actually, it does. It’s called high humidity. As mentioned, that’s completely normal at the beginning. Heat thoroughly and ventilate properly, and everything will be fine.
Regards,
Andreas
MatzeGalle schrieb:
20 degrees air temperature, outside the duvet you freeze like crazy and underneath I’m sweating buckets. That doesn’t add up at all, does it?
Actually, it does. It’s called high humidity. As mentioned, that’s completely normal at the beginning. Heat thoroughly and ventilate properly, and everything will be fine.
Regards,
Andreas
M
MatzeGalle11 Mar 2017 19:07Many thanks ☺... there are really a lot of nice people here... so I will try that again and hope that it is actually the reason for the cold. However, I have one more question about that... According to the hygrometer, the humidity in the room is only about 55-60% maximum... is that actually normal? Or is the moisture absorbed or retained in another way? I also heard from an energy consultant who said it could be due to cold air falling. So warm air meets a "cold" window and "cold" wall and then sinks as "cold" air, which you might perceive as cold despite the 21°C (70°F) air temperature... However, I find that hard to imagine with triple glazing and wall insulation. Also, the climate is quite okay during the day... it only gets bad at night.
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