C
Call Out Size (COS)The nominal size of a window or door. For instance, a window that is 3 feet wide and 4 feet high would have a call out size of 3040.
Cam LockA pivoting type latch usually attached by a screw or rivet to the top rail of a single hung sash or the centermost side rail of a sliding window sash. The latch locks to the meeting rail, some type of keeper, or strike plate attached to the meeting rail.
Casement WindowA window unit in which the single sash cranks outward, to the right or left. Projecting window hinged at the sides and usually opening outward like a door.
CasingMolding of various widths, thickness and shapes applied to the framework of window and door units. Interior casing is a flat, decorative moulding which covers the inside edge of the jambs and the rough opening between the window unit and the wall. Exterior casing (or brickmould) serves the same purpose, while it also is an installation device through which nails are driven to install the window unit into the wall, (nailing fin).
CaulkingA soft semi liquid material used to seal cracks around a window and door frame adjacent to the wall opening. Normally, this is applied from a tube in a caulking gun.
Center JambThe vertical rail in a sliding glass door panel containing the lock.
Channel GlazingA method of glazing that entails a soft vinyl or rubber gasket-like material folded over the edges of the glass and then fitted inside a channel opening in the sash frame members. SWISCO uses the term: marine glazing.
Check RailOn a double-hung window, the bottom rail of the upper sash and the upper rail of the lower sash, where the lock is mounted. The top rail of the lower sash and the bottom rail of the upper sash which meet when a double-hung window is closed. Both pieces should be weather stripped for maximum weather-ability.
ClerestoryA window in the upper part of a lofty room to provide natural light. Usually it is out of reach from the floor. These windows can be fixed or operating and an extension device is used for operating clerestory windows.
Closet Pocket DoorA sliding glass door style whereby the door panels stack up inside a wall.
Colonial LiteWindows with small rectangular panes or divided lights and designated as a 12-lite, 16-lite, and so on.
Combination StormA wood or aluminum storm sash with self-storing screen and operating glass panels.
Commercial WindowA window used in commercial buildings, which are normally heavier than residential windows and often anodized.
CondensationA condition caused by warm moist air coming into contact with a colder object with moisture appearing on the colder surface. A large difference in the temperature of either side of a window and humid air present on the warmer side will cause condensation to appear.
Corner KeyA metal or plastic device used to secure the corners of a sash, frame, spacer bar, or screen section. The device is generally an "L" shaped part that fits inside mitered ends of the perimeter parts. The corner key can be crimped (staked) in place or screws can be inserted.
Cottage Double-hungA double-hung window in which the upper sash is shorter than the lower sash. SWISCO uses the term: oriel.
Cripple StudsThe short stud pieces that distribute weight over the header and help support the window under the subsill. When windows are located near the top plate or floor, upper cripple studs can be eliminated with a wider header.
Custodial LockWindow hardware only operable with a tool or key.
Cylinder LockA type of adjustable pin lock, cylindrical in shape.
