Black Knight Secondary Glazing

Secondary Glazed Windows

Types of secondary glazed windows

There are Black Knight secondary glazed windows that are suitable for just about every window design.

They are suitable for use behind sash windows, casement, fixed, opening, picture and bay windows.

There are a few descriptive terms that are used when talking about a secondary glazed windows that may help you:

A - Frame

the part of the window that forms the perimeter of the window

B - Mullion

a fixed vertical bar within the window that separates opening or fixed sections of the window.

C - Transom

a fixed horizontal bar within the window that separates opening or fixed sections of the window.

D - Casement

the opening section of the window (can be side hung, top hung or slide).

E - Glazing Bar

smaller bars that separate individual glass panes.

F - Reveal

the part of the wall that runs from the internal face of the window to the inside wall of the room.