Air-tight flashings

Air-tight flashings are an essential element of roof window installation, responsible for maintaining the integrity of thermal insulation. Their main task is to create a barrier that prevents warm and humid air formed inside the room from penetrating the insulation layers around the window. Proper protection of this area is crucial for securing the building’s energy efficiency and the comfort of its occupants. Joint areas are particularly critical in any roof structure – this is where thermal bridges most often occur, leading to heat loss and moisture in the insulation materials. Air-tight flashings eliminate this risk by sealing the connection between the vapour barrier membrane and the roof window. They create a tight barrier that keeps the insulation wool in optimal conditions, protecting it from moisture and deterioration of its thermal insulation properties.