Grilles

grilles:
a metal grating used as a screen, barrier or decorative element as in a window or gateway
hipped:
the external angle formed by the meeting of two adjacent, sloping sides of a roof ...

Grilles-Between-The-Glass (GBG)
Grilles permanently installed between the panes of the insulating glass.
Head The main horizontal member forming the top of the window or door frame.

The windows are usually decorated with wooden grilles which are often plain but can become quite elaborate.

Gothic-head window: Usually removable for easy cleaning, grilles give the appearance of a divided window pane.
Grille (or muntin bar): Usually removable for easy cleaning, grilles give the appearance of a divided window pane.

Clair-voyee
- inserts of ironwork (originally wrought, latterly cast) in stone walls, either as tall rails, or as grilles to afford views beyond the enclosure.

This sumptuousness of detail and colour, and composition of light and shade, enters into every detail; altars and reredoses, the latter often vast in size and of the richest materials; grilles of intricately wrought and chiselled metal; ...

See also: Grille, House, Decorated, Architecture, Islamic architecture