After the windowframes were replaced in our apartment it became far colder, on close inspection it seems that the windowsill moved a a bit and the sealant doesn't quite fill the gap anymore. Peels right off and proper gale blows through the gap. Can I just fill it back up again with acrylic sealant and paint over it?
Use a specific low expansion foam for around window and door frames.
Wear latex gloves and be careful applying it, the stuff does not come off.
Before you use it pick out any loose plaster.
After the windowframes were replaced in our apartment it became far colder, on close inspection it seems that the windowsill moved a a bit and the sealant doesn't quite fill the gap anymore. Peels right off and proper gale blows through the gap. Can I just fill it back up again with acrylic sealant and paint over it?