XDS air tight flashing is mounted inside the room to form a barrier against warm and humid air as any moisture on the surface of the insulation greatly reduces its thermal insulation properties.
Application of ready made solution such as the XDS air tight flashing will eliminate this problem. This ensures a tight connection between roof window and sheeting. The sheeting is pushed into a groove specially made in the window's frame. The flashing should be chosen in accordance with the size of the window.