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Definitions by the Andersen Window Website
Terms in this set (83)
Inside flat trim member which is used under the stool at the bottom of the window
The center member of a double door, which is attached to the fixed or inactive door panel
A composite of three or more windows, usually made up of a large center unit and two flanking units at 30
or 90* angles to the wall
A composite of four or more window units in a radial or bow formation
Outside casing around window to cover jambs and thorough which nails are driven to install the window
Inside casing is a flat, decorative moulding that covers the inside edge of the jambs and the rough openings between the window unit and the wall. Outside casing (or brick mould) serves the same purpose, while it also is an installation device through which nails are driven to install the window unit into the wall
On a double-hung window, the bottom rail of hte upper sash and the upper rail of the lower sash, where the lock is mounted
A generic term referring to any of a variety of window units with one or more curved frame members, often used over another window or door opening
A window near the top of an outside wall
A double-hung window in which the upper sash is shorter than the lower sash
The short 2" x 4" members used to frame under the sill or above the header in a rough opening for a window in a frame wall
A watertight wall or frame used to raise slope glazing above the surface of the roof as a preventative measure against water leakage from melting snow or rain run-off
A numerical value that defines the structural wind loading requirements (in pounds per square foot) for a building and the components and cladding of a building
A space which protrudes from the roof, usually including in or more windows
Use of two panes of glass in a window to increase energy efficiency and provide other performance benefits
A window with two vertical operating sash that slide up and down
The doubling (side by side) of the roof members to reinforce an opening in the roof for a slope-glazing installation
A moulding placed on the top of the head brick mould or casing of a window frame
A window large enough, as defined by local building codes, for exit or entry in case of an emergency. Typically required in bedrooms.
An architectural term referring to the arrangement of windows in a wall
A means of joining individual pieces of wood together to form longer lengths. The ends of the pieces are machined to form a set of interlocking finger, which are then coated with adhesive and meshed together under pressure.
Non-venting or non operable
A metal or plastic strip attached to the outside of the head or side jambs to provide a weather barrier, preventing leakage between the frame and the wall
French Hinged Door
Hinged door(s) which have wider panel members around the glass
French Sliding Door
A sliding door which has wider panel members around the glass, giving the appearance of a French hinged door
A pilable, flexible continuous strip of material used to effect a watertight seal between sash and frame of roof windows much like the seal around a refrigerator door
The glass panes or light in the sash of a window. Also the act of installing lights of glass in a window sash
A plastic or wood strip applied to the window sash around the perimeter of the glass
A pilable substance applied between the window sash and the lights of glass to seal against the elements and sometimes to adhere the glass to the sash
The part of the sash or door panel which holds the glass in place
The main horizontal member forming the top of the window or door frame
A flat board cut to fit the contour of a bow or bay window and installed between the head jambs and the flat wall surface to finish off that area which would normally be ceiling
A heavy beam extended across the top of the rough opening to prevent the weight of wall or roof from resting on the window frame
A window with a top sash that swings inward
Impact Resistant Glass
Single or double pane construction made up of laminated glass containing a .090 interlayer
Framing members, generally 2" x 4"'s, which form the inside of the window or door rough opening. They run from the sole plate to the header, which is supported by them
Metal or plastic covering the inside surface and head jambs of sliding windows
The protruding, hook-shaped part of a casement window lock, which is mounted on the inside surface of the sash stile
Handle or grip installed on the bottom rail of the lower sash of a double-hung window to make ot easier to raise or lower the sash
(also spelled lite) Glazing framed by muntins and/or sash in a window or door.
An Insulated shaft built to direct light from a roof window or skylight through the attic to the room below.
A common term used to refer to glass which has low emissivity due to a film or metallic coating on the glass or suspended between the two light of glass to restrict the passage of radiant heat.
The opening in a masonry wall to accept a window of door unit, the same as a rough opening in a frame wall.
An ornamental exterior trim around the perimeter of a frame.
A slot or rectangular cavity cut into a piece of wood to receive another part.
A strong wood joint made by fitting together a mortise in one board and a matching projecting member (tenon) in the other.
The vertical or horizontal divisions or joints between single windows in a multiple window unit.
An interior or exterior casing member to cover the mullion joint between single windows.
A short bar used to separate glass in a sash into multiple light. Also called a windowpane divider or a grille.
National Fenestration Rating Council- A non-profit organization that provides fair, accurate and credible energy performance ratings for windows and doors.
A metal arm and gear which allows for easy operation or closing of projecting windows
Outer Frame Member
The exterior protruding portion of a window frame which has no exterior casing.
A large, arch-top window flanked by smaller window on each side.
Usually refers to the separate panel or panels in a door frame
Passive solar collector
Any glazed area in the walls or roof of a building pointed to the south to take maximum advantage of the sun's heat without a mechanical (or active) method of storage or distribution of the heat.
Picture Frame Casing
The use of casing on all four sides of the interior of a window, replacing the stool and apron at the sill. Also known as full-bound casing.
The pitch of a roof is the degree of the inclination upward from horizontal or flat. It may be expressed in degrees or as the ratio of the number of inches it rises in each 12 inches of horizontal span.
A mode of operation for ventilating windows which generally means the sash pivot on a central axis and turns 90 or more degrees.
Structural members of a roof that support the roof load and run from the ridge to the eaves (overhang).
The horizontal members of a window sash or door panel.
The opening left in a frame wall to receive a window or door unit.
The horizontal rough framing member, usually two inches by four inches, which forms the bottom of the rough opening. It is toe-nailed into the jack studs and is supported by cripples.
A system of weights, cords and/or coiled springs which assist in raising double-hung sash and tend to keep the sash in any placed position by counterbalancing the weight of the sash.
In double-hung windows, the rope or chain that attatches the sash to the counter balance.
Generally, a calm-action type lock applied to the check rails of a sliding window or at the open edges of a projecting window to pull the check rails tightly together or to seal the sash tightly to the frame, both for security and weather-tightness.
In older double-hung window, the concealed cast-iron weights that are used to counterbalance the sash.
A flat board cut to fit the contour of a bow or bay window and installed between the sills and the flat wall surface, providing a seat or shelf space.
A thin, waterproof piece of material used between the window/door unit and the rough opening to support the unit, center it within the rough opening, and adjust it to a plumb, level and square position. If tapered shims are used, they must be used in pairs with the tapers opposing each other to avoid tilting the unit or twisting the jambs.
Tall, narrow, fixed or operating sash on either or both sides of a door to light an entryway or vestibule.
Horizontal member that forms the bottom of a window frame.
Sill Course (Soldier Course)
The row of brick, cement blocks or stones laid across the bottom of a masonry opening which lay under the outside edge of the window sill.
Simulated Divided Light
A method of constructing windows in which muntins are affixed to the inside and outside of a panel of insulating glass to simulate the look of true divided light.
Use of a single panes of glass in a window. Not as energy-efficient as double glazing.
A double-hung type of window in which the top sash is fixed or inoperable.
Any glazed opening in a sloped roof or wall, such as a stationary skylight or fully operable roof window.
The process of providing a net heat gain within a structure, over and above the normal heat loss, by passive collection of the sun's heat through windows and other glazed areas.
The bottom horizontal member in a frame wall. Usually either single or double 2" x 4"s. It is nailed to the deck or rough floor and the studs are nailed into it.
The vertical side member of a window sash or door panel.
Inside horizontal trim member of a window sash or door panel.
A wood trim member nailed to the window frame to hold, position or separate window parts. The stop is often moulded into the jamb liners on sliding windows.
Vertical wood framing members which form a frame wall. In normal construction these are eight foot-long 2" x 4"s.
A rectangular projection cut out of a piece of wood for insertion into a mortise
A smaller window above a door or another window. A xxxxxxx joint is also the horizontal joining area between two window units which are stacked one on top of the other
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