Bottom-hinged windows can also be called hopper windows. This type of window opens only at the top to a limited extent, with the window tilting inwards from the top.
They are very suitable for small windows and rooms that need ventilation but where you do not want to have the window wide open. They are very useful for renewing the air inside a room avoiding the nuisance of draughts generated by an open window.
This window is available in PVC and aluminium. In the latter material it is also available with thermal breakAluminium is an excellent conductor of cold and heat and is not an effective thermal insulator.
Thermal Break (TB) consists of preventing contact between the outer and inner faces of the window by fitting a rubber separator between the external and internal profiles to eliminate conduction and increase insulation.
Another advantage of TB is that it improves the sound insulation of the window.. A two-colour finish is possible.
It is recommended to use double glazingDouble glazing – also called insulated glazing or even Climalit – is glazing consisting of at least two panes of glass (interior and exterior) separated by a chamber of dehydrated air guaranteed with a double seal.
Double glazing is an excellent thermal and sound insulator compared to single glazing. Single glazing consists of a single pane of glass and is recommended for internal architecture (internal glass doors, dividing elements, mirrors, environment separators, decorative glass) and external architecture (integrated into rails for balconies or terraces). to improve the sound insulation. It is possible to improve their security by fitting a lock.
This opening system is frequently combined with that of a casement window, giving rise to the tilt & turn window.