It prevents the penetration of water into the interior of the building structure, but does not prevent the exit of steam to the outside.
It prevents the penetration of water into the interior of the building structure, but does not prevent the exit of steam to the outside.
user
Воно перешкоджає проникненню води в товщу будівельної конструкції, але не заважає виходу пари назовні.
assistant