To provide a greater clear opening space, the Fineline-XTS system has
been designed to provide a larger opening in the centre of the facade.
A special mechanism inside the mullion will open the bottom louvres in a
downward motion whilst opening the top louvres in the reverse direction.
As with the XT system, the louvre blades seal vertically by closing onto
bulb seals running the full length of the mullions. Horizontal weather
protection between each louvre blade is achieved by fi tting a bulb seal
to one edge of each louvre blade.
