Windows and doors can also only be insulated to a certain degree; moisture and wetness even penetrate through thick cement walls. Dangerous moisture that leads more quickly to mould and rust than expected and damage deposited materials, electrical installations, perishables, files, and much more.
During the manufacturing of cement, mortar, plaster, and so on, large volumes of water are required for the hardening process. Even processed construction elements like bricks, gas cement, and so on may contain water to an extent that should not be underestimated.
