The term ‘jamb’ typically refers to the vertical up-right components that form the sides or of door or window frames. On a window, the jambs can be fitted with jamb liners to improve air tightness. As with doors, a casing will generally be used to conceal the joint between the frame and the walls.Click to see full answer. Likewise, people ask, what’s a window jamb?Jambs are the main vertical components that form the sides of a window. A head or head jamb is the vertical component that sits at the very top of the window frame. The window sash seats against it.Also Know, what is the casing of a window? Casings are the moldings that go around the window frames. They are installed outside the house to seal the window frame to the house blocking cold air from entering the interior. Inside, casings are the finishing touch to a window installation, the same as baseboards and door moldings finish off a room. Also to know, what are the parts of a window? The frame has three main parts: the sill, or horizontal strip along the bottom of the frame; the jamb, the vertical sides of the frame; and the head, the top horizontal strip on the frame. The sash also has several components. Stiles are the vertical sections of the sash.What holds glass in a window frame?Materials Required. On older single-pane windows, the glass is usually surrounded by putty called “glazing compound,” which holds the glass in place and seals out the weather. With the glass thoroughly broken up, pull the shards out of the frame by hand. Pull out the old glazing points with pliers.