use of one pane of glass in a sash but not as energy efficient as dual glazing
Use of single panes of glass in a window. An alternative to double glazing but not as energy-efficient.
Use of single panes of glass in a window. Not as energy-efficient as double glazing.
Single thickness of glass in a window or door.
The use of single panes of glass in a window.
The use of a single pane of glass in a window.