Why this? Moisture in walls?

[josefinem]

[link]

THANK YOU! One might wonder why the builders didn't do it the right way..?

The question is how to proceed now? The company that built the house is no longer around, according to my neighbor (who has a house by the same builder) when he tried to contact them.

 

[Karl-Ove Qvarfordt]

THANK YOU! One might wonder why those who built it didn't do it the right way..?

The question is how to proceed now? The company that built the house is no longer in business, according to my neighbor (who has a house by the same builder) when he tried to contact them.

Do you have underfloor heating in the room where the window is?

 

[josefinem]

Do you have underfloor heating in the room where the window is?

Yes. Underfloor heating throughout the entire house.