Almost everyone knows that modern houses are built using thermal insulation materials. They insulate the floors, walls, roof and ceilings. But in order for insulation to be effective, you also need to use vapor barrier. Steam has high pressure on the walls, overlaps and roof than atmospheric. Wet steam passing through the insulation, at a lower external temperature condenses, turning into water. As a result of this water, insulation and walls are impregnated.
Vapor barrier materials: how to choose what to take into account
