The hugely popular Atlas Friction Hinge range has a new variant with an alternative opening geometry. This is aimed at window types which require a little more clearance between sash and frame on opening and closing, and may be particularly suitable for timber windows and flush windows. It is available immediately in both 14mm and 18mm stack heights, in a 14″ ( 350mm ) length. The 18mm stack height is designed specifically for Halo flush windows. The hinge offers egress, easy clean and heavy duty ( sash weights up to 45kg ) and is suitable for sashes up to 900mm.