Installation Clearances

Window
57mm outer frame edge to sash – 29mm
77mm outer frame edge to sash – 49mm. This is on tilt and turn windows too.

57mm outer frame with night vent (when fitted) – 5mm (add on or wide outer to head will always be required)
77mm outer frame with night vent – 25mm

Trickle Vents can be fitted to the outer frame or in the sash on all systems. An unequal large frame head can be specified as above to increase clearance from 5mm to 25mm.

Door
77mm outer frame to sash – 49mm
Low PVCu threshold to edge of door sash – 29mm
Std low ali threshold to edge of door sash – 20mm
Doc M low ali threshold – 5mm

77mm outer frame to edge of hinge – 20mm