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Options: Design configurations

A number of options are available to produce a variety of glazing design configurations, from transoms and mullions to glazing bars and timber cassette overlays.


Transoms and mullions

The design potential for any architectural project can be increased considerably by incorporating transoms and mullions into any NorDan product. A transom or mullion constructed within a NorDan sash provides separate sealed units either side. The NorDan standard range of products can have transoms and mullions in 62mm or 92mm widths. The exception to this is the Villa range which offers only 62mm width.


Glazing bars

Image of the NorDan duplex system

NorDan can also provide a multi-paned solution using a duplex "astragal" system to effectively produce the appearance of individual panes of glass both internally and externally.

Timber overlays

Overlays are a small section of timber frame divided into panes to produce square or rectangular patterns over the main window or door leaf glazing. Overlays are fitted over the glazing beads by way of hinges with removable pins. This method of fixing enables the overlay to be released for cleaning purposes. The overlay moves with the window sash or door leaf.

The overlay can be designed to suit your particular needs or taste and, once attached, will afford your home with a totally new appearance. Overlays are available in a range of different sections, and to exhaustive design configurations.