Hello! The inside of the glass on the inner window frame in my bathroom gets a lot of condensation after taking a hot shower. The window consists of an outer window frame and an inner window frame (not coupled frames). The window also lets in some cold air (that's why it's taped around the window), and when you touch the innermost pane, it feels very cold. The bathroom was renovated in 2013, but the window is original from when the house was built in 1971. There is also a thin plastic curtain in front of the window in the bathroom. How can this be stopped?
Thankful for answers!
Thankful for answers!
Is the plastic curtain positioned so that it covers the window? You might make a bit of a difference by removing it. But I don't think you'll get rid of the condensation unless you switch to a window with better insulating value. However, it should disappear soon after showering if the ventilation is good.
A shower produces nearly 100% Rh humid warm air in large quantities with hot water from the shower - this means that anything colder and not yet mixed with drier air will cause moisture to condense on any surfaces that are at least slightly cooler than the shower temperature.
The interesting thing is not whether it will fog up - because fog will form unless the room is halfway sauna-heated - but rather the question is how long the fog remains. If it's gone within fifteen to thirty minutes after finishing the shower, I wouldn't worry.
One can use a shower cabin to reduce the amount of warm humid air flowing into the room - however, there's still a lot rising to the ceiling if it is not completely closed at the top.
The interesting thing is not whether it will fog up - because fog will form unless the room is halfway sauna-heated - but rather the question is how long the fog remains. If it's gone within fifteen to thirty minutes after finishing the shower, I wouldn't worry.
One can use a shower cabin to reduce the amount of warm humid air flowing into the room - however, there's still a lot rising to the ceiling if it is not completely closed at the top.
A simple solution is to remove the inner window frame and stretch/put/tape a plastic curtain or equivalent on the window frame. The plastic curtain becomes "a third pane" that insulates, and the inner glass is then warmer, resulting in less condensation. The plastic curtain also provides privacy for the bathroom.
Most windows fog up when you shower. It's basic physics (as described earlier in the thread). As also mentioned previously, the important thing is how long it takes for the fog to disappear after the shower. Up to about 30 minutes seems reasonable.
If you don't want fog on the window during the shower for some inexplicable reason, you need to have a hefty radiator under the window that is 60-80C warm to keep the window glass warm (and the crows happy).
If it doesn't dry quickly enough after the shower, better ventilation or a dehumidifier is needed.
If you don't want fog on the window during the shower for some inexplicable reason, you need to have a hefty radiator under the window that is 60-80C warm to keep the window glass warm (and the crows happy).
If it doesn't dry quickly enough after the shower, better ventilation or a dehumidifier is needed.