ᐅ Damp spots on the base coat after thawing

Created on: 14 Jan 2026 07:15
H
hoppelstrasse
H
hoppelstrasse
14 Jan 2026 07:15
Hello,
Yesterday we experienced a thaw, and around the base of the house there were some isolated damp spots in the plinth area. These disappeared within about 6 hours.

Specifically in this area, there was apparently a slight moisture problem on the inside of the wall in this corner of the room, as we found fine efflorescence and the corner of the wall is slightly discolored. Yesterday I took a measurement using a “Testo” device, and the value for lime-cement plaster was between 0.6 and 0.8%.

Could this be caused by humidity in the air and subsequent frost, which then “releases” during the thaw?