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Construction materials used for protection from noise, heat, cold or fire.
An upright frame member of a panel in a sliding glass door which engages with a corresponding member in an adjacent panel when the door is closed. Also called interlocking stile. Also the check rails of single and double hung windows.
Window made up of horizontally-mounted louvered glass slats that abut each other tightly when closed and rotate outward when cranked open.
A vertical member at the side of a window frame, or the horizontal member at the top of the window frame, as in head jamb.
A condition that exists when a surface is exactly horizontal.
Handle for raising the lower sash in a double-hung window. Also called sash lift.
A window; a pane of glass within a window. Double-hung windows are designated by the number of lights in upper and lower sash, as in six-over-six. Also spelled informally lite.
A horizontal member above a window or door opening that supports the structure above.
Invisible radiation, beyond red light on the electromagnetic spectrum (above 3.5 micro meters), emitted by warm surfaces such as a body at room temperature radiating to a cold window surface.
An assembly of materials designed to reduce heat transfer at the edge of an insulating window. Spacers are placed between the panes of glass in a double- or triple-glazed window.
Microscopically thin, virtually invisible, metal or metallic oxide layers deposited on a window or skylight glazing surface primarily to reduce the U-factor by suppressing radiative heat flow. A typical type of low-E coating is transparent to the solar spectrum (visible light and short-wave infrared radiation) and reflective of long-wave infrared radiation.
The part of a sliding glass door, a sliding window, or a hung window where two panels meet and create a weather barrier.
2 or more windows structurally joined together to fit into one rough opening
A major structural vertical or horizontal member between window units or sliding glass doors.
National Fenestration Rating Council.
An integral extension of a window or patio door frame which generally laps over the conventional stud construction and through which nails are driven to secure the frame in place.
Any textured glass (frosted, etched, fluted, ground, etc.) used for privacy, light diffusion, or decorative effects.
Window that can be opened for ventilation.
Crank-operated device for opening and closing casement or jalousie windows.
One of the compartments of a door or window consisting of a single sheet of glass in a frame; also, a sheet of glass.
A major component of a sliding glass door, consisting of a light of glass in a frame installed within the main (or outer) frame of the door. A panel may be sliding or fixed.
A large, fixed window framed so that it is usually, but not always, longer horizontally than vertically to provide a panoramic view.
The component on the bottom corner of an operable sash in a single or double hung window that allows the sash to be tilted in.
A rolled, ground, and polished product with true flat parallel plane surfaces affording excellent vision. It has been replaced by float glass.
A condition that exists when a surface is exactly vertical.
An extruded or molded plastic material used for window framing and as a thermal barrier for aluminum windows.
A measure of how well a barrier such as a layer of insulation, a window or a complete wall or ceiling, resists conductive flow of heat. It is the inverse of the U-factor (R=1/U). R-values measure the thermal resistance of a barrier's exposed area. The greater the R-value, the greater the resistance, and so the better the thermal insulating properties of the barrier. R-values are used in describing effectiveness of insulating material and in analysis of heat flow across assemblies (such as walls, roofs, and windows) under steady-state conditions.[6] Heat flow through a barrier is driven by temperature difference between two sides of the barrier, and the R-value quantifies how effectively the object resists this drive.
The transfer of heat in the form of electromagnetic waves from one separate surface to another. Energy from the sun reaches the earth by radiation, and a person's body can lose heat to a cold window or skylight surface in a similar way.
Horizontal member of a window sash.
The percentage of moisture in the air in relationship to the amount of moisture the air could hold at that given temperature. At 100 percent relative humidity, moisture condenses and falls as rain.
Adding or replacing items on existing buildings. Typical retrofit products are replacement doors and windows, insulation, storm windows, caulking, weatherstripping, vents, landscaping.
The space between the window sash or door panel and the frame.
The opening in a wall into which a door or window is to be installed.
A strengthened or reinforced glass that is less subject to breakage or splintering.
The portion of a window that includes the glass and the framing sections directly attached to the glass, not to be confused with the complete frame into which the sash sections are fitted.
Woven mesh of metal, plastic, or fiberglass stretched over a window opening to permit air to pass through, but not insects.
A compressible plastic material used to seal any opening or junction of two parts, such as between the glass and a sash, commonly made of silicone, butyl tape, or polysulfide.
A measure of the ability of a window or skylight to transmit solar heat, relative to that ability for 1/8-inch clear, double- strength, single glass. It is being phased out in favor of the solar heat gain coefficient, and is approximately equal to the SHGC multiplied by 1.15. It is expressed as a number without units between 0 and 1. The lower a window's solar heat gain coefficient or shading coefficient, the less solar heat it transmits, and the greater is its shading ability.
A transparent, flat glass found in older windows, now largely replaced by float glass.
Invisible radiation, just beyond red light on the electromagnetic spectrum (between 0.7 and 2.5 microns), emitted by hot surfaces and included in solar radiation.
The lowest horizontal member in a door, window, or sash frame.
The track provided at the sill of a sliding glass door. Also, the sill member incorporating such a track.
Single thickness of glass in a window or door.
A window consisting of two sashes of glass, the top one stationary and the bottom movable.
Glass with thickness between 0.085" and 0.100" (2.16-2.57 mm).
A roof window that gives light and ventilation.
A door fitted with one or more panels that move horizontally on a track and/or in grooves. Moving action is usually of rolling type (rather than sliding type). Also called gliding door, rolling glass door, and patio sliding door.
A window fitted with one or more sashes opening by sliding horizontally or vertically in grooves provided by frame members. Vertical sliders may be single- or double-hung.
The fraction of solar radiation admitted through a window or skylight, both directly transmitted, and absorbed and subsequently released inward. The solar heat gain coefficient has replaced the shading coefficient as the standard indicator of a window's shading ability. It is expressed as a number between 0 and 1. The lower a window's solar heat gain coefficient, the less solar heat it transmits, and the greater its shading ability. SHGC can be expressed in terms of the glass alone or can refer to the entire window assembly.
The total radiant energy from the sun, including ultraviolet and infrared wave lengths as well as visible light.
