Hi,
Sorry for posting in English but my Finnish is terrible.
I live in a rintamamiestalo built in 1950 and noticed holes on the rivinteeraus. I imagined it was to circulate a bit of air from the back space but when looking with a camera the holes go almost all the way through the external basement wall.
Would anyone know if this was a common thing and the reason for it?
Here are videos of the holes:
https://drive.google.com/drive/folders/ ... sp=sharing
Cheers.
Forgot to mention that the camera went around 25 to 30 cm inside the wall.