Hello,
my new PVC windows are fogging up on the inside, even though the house is 25 years old and there is no remaining construction moisture. I have an indoor temperature of 22°C (72°F) in the living area and 19°C–20°C (66°F–68°F) in the bedroom (outside temperature is currently 0°C (32°F)). The indoor humidity level is 53%. I ventilate twice daily for at least 5 minutes each time, with the windows fully open. The doors to the rooms are only closed at night.
My question is: how can I stop the condensation? Should I raise the floor heating temperature or rather reduce the heating?
Best regards, hsgl
my new PVC windows are fogging up on the inside, even though the house is 25 years old and there is no remaining construction moisture. I have an indoor temperature of 22°C (72°F) in the living area and 19°C–20°C (66°F–68°F) in the bedroom (outside temperature is currently 0°C (32°F)). The indoor humidity level is 53%. I ventilate twice daily for at least 5 minutes each time, with the windows fully open. The doors to the rooms are only closed at night.
My question is: how can I stop the condensation? Should I raise the floor heating temperature or rather reduce the heating?
Best regards, hsgl
M
MODERATOR7 Mar 2010 23:59Hello again hsgl,
A "too well sealed" house has nothing to do with condensation on the window; I assume there is a problem with the glazing; the glazing bead was probably not sealed properly.
Have you already carried out this temperature measurement?
A "too well sealed" house has nothing to do with condensation on the window; I assume there is a problem with the glazing; the glazing bead was probably not sealed properly.
Have you already carried out this temperature measurement?
Hello,
I took the measurements with the roller shutter open:
outside air -10°C (14°F), glass -5°C (23°F)
inside air +20°C (68°F), glass +16°C (61°F)
and with the roller shutter closed:
outside air -4°C (25°F), glass 0°C (32°F)
inside air +20°C (68°F), glass +18°C (64°F)
I measured in the same room and at one window on the same side each time. The indoor humidity in the room (34m² (365 ft²)) was between 50-58%.
Where the roller shutter was down, the panes were not wet.
The glazing as well as the glazing bead were in excellent condition and sealed (this was inspected and assessed by the glass and window company).
Best regards,
hsgl
I took the measurements with the roller shutter open:
outside air -10°C (14°F), glass -5°C (23°F)
inside air +20°C (68°F), glass +16°C (61°F)
and with the roller shutter closed:
outside air -4°C (25°F), glass 0°C (32°F)
inside air +20°C (68°F), glass +18°C (64°F)
I measured in the same room and at one window on the same side each time. The indoor humidity in the room (34m² (365 ft²)) was between 50-58%.
Where the roller shutter was down, the panes were not wet.
The glazing as well as the glazing bead were in excellent condition and sealed (this was inspected and assessed by the glass and window company).
Best regards,
hsgl
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