Question 1

What Are the Main Parts of a Window?

Accepted Answer

Obviously, different styles of windows will have different parts. A box sash window relies on a complex mechanism to function and it’s frame will have extra parts to allow for this. On the other hand, a casement window opens on a straightforward hinge. A construction this simple means less parts involved. Whatever style of window you have, there are some parts that always feature. The main different parts of window are: Glass Frame Head  Jamb Sash Lintel Sill

Question 2

What Is Window Glass?

Accepted Answer

You can probably identify the glass in your window. Most windows will feature more than one sheet of glass, either side by side or one above, one below, depending on the style of window. These individual pieces are called ‘window panes’. Modern windows will always use strengthened glass so they are harder to break. Usually this is tempered or laminated glass, both of which are safer and more secure than standard glass. These days, they are almost always double glazed to help them keep the heat from your house inside, and the cold air outside.

Question 3

What Is a Window Frame?

Accepted Answer

The window frame is another one of those parts you could probably identify without help. Usually made of uPVC, timber or aluminium, this is the name for the outside framework which holds the window in place. There are also names for each specific part of a basic window frame: Window Head: Almost self-explanatory, the head is the main horizontal part of the frame, located at the very top. Window Jamb: The technical sounding ‘jamb’ is actually just the vertical sides that make up the outside window frame

Question 4

What Is a Window Sash?

Accepted Answer

A window sash is the inside ‘frame’ which holds one pane of glass. Made of the same material as the frame itself, any handles or mechanisms to work the window are usually attached to the sash. The sash is easily identified on most windows, because it is the bit that actually moves. In sash windows, the window sash moves vertically to open the window. In casement windows, the window sash may just be referred to as a ‘casement window’ and it moves outward on hinge to open.

Question 5

What Is a Window Lintel?

Accepted Answer

The lintel of a window is a beam that sits horizontally along the top of the window (above the head of the frame). Commonly made of wood, steel or concrete, the lintel is a key part of the window construction. This is what supports the brickwork above the window and could also be considered part of the building structure rather than the window. In older houses, you can sometimes see the lintel, made of stone or wood. They can be turned into a feature, if they are painted or stained a different colour and look very attractive.

Question 6

What Is a Window Sill?

Accepted Answer

The window sill is the part which sits under the window, between the frame and the wall beneath. It’s another part that is structurally important, providing support to the window. On the outside of a building, the sill sticks out slightly, often at angle. As well as giving some definition to the appearance of the window, this lets any rainwater run off. It is important to keep water flowing away from the frame and the seals of the windows to prevent water damage.

Question 7

What Is a Window Transom?

Accepted Answer

If a window has two panes of glass arranged vertically, then the horizontal part of the frame that separates them is called a ‘transom’.

Question 8

What Is a Window Mullion?

Accepted Answer

If a window has two or more panes arranged horizontally, then the vertical part of the window frame that separates them is called a ‘mullion’.

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