At the point where operable sash meet, the interlocking design of the meeting rail or stile secures sash tightly together.
Double Hung windows
feature a vent latch
for partial ventilation.
Windows with operable sash move smoothly and easily because of a
constant force coil spring
A spacer system with a U-channel design inside the I.G. is more efficient than conventional box spacers.
Low-profile composite cam lock blends into the overall window design.