Does replacing the window bring any benefit?

Hello,
My daughter lives in a rented apartment. Very cold air comes down from the skylight. So they do not keep the cold outside. Now water is collecting in the corners and the wood is starting to mold. My daughter always cleans it thoroughly and also uses mold stopper, but after a few days it comes back again.

Now my question: Do new windows with better insulation help? Will heating costs also be saved?

Thank you very much for your information.

Hi, You have already formulated that correctly, because in an old apartment it is often advisable to replace the old windows. The apartment must be sealed and the ventilation behavior must also be changed. Often this is the cause, and if it is done incorrectly, the place gets moldy. BG

Hi Annegret,


Your daughter should first ask her landlord, or does she want to pay for it herself?
But I suspect that even with the new windows, the problem won't be solved. It may not occur as intensely, but that's just how it is: where moisture appears and there is a cold surface, condensation forms. I think the only thing that helps is frequent ventilation. Especially when cooking and after showering.


BG

It depends on what kind of roof windows you use, the roof windows from Velux or also Roto also have thermal insulation glass and are double-glazed. They therefore have a good thermal insulation value, the downside being that these roof windows come at a price. That’s why you should first ask the landlord what he thinks about it? Because it might very well be that he doesn’t care, since your daughter pays the heating costs :)

Hello, as already described, replacing the window cannot fundamentally improve the problem. The types of windows that nam suggests do have their price, and it is rather unlikely that the landlord will pay for it. I had a similar problem, and there were also two plastic roof windows that tended to form condensation. The only help here was: dry wiping, sufficient ventilation, and reheating. This warm air can hold more moisture than cold air. Best regards

Hello, But why should the landlord be against it? He risks mold forming, and its removal or treatment then costs a lot of money. Therefore, replacing the windows is a good option. As a recommendation, I would take the windows from Roto, and they have good quality. BG