Top-hung windows have an operable sash that pivots at the top. When opened, the sash dips downward slightly. The vertical position of the upper sash can be changed.
Projecting top-hung or awning windows were developed in 1972.
Top-hung windows have an operable sash that pivots at the top. When opened, the sash dips downward slightly. The vertical position of the upper sash can be changed.
Projecting top-hung or awning windows were developed in 1972.