Glossary
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Aluminum
A
coating applied to the outer surface of a material to improve its performance
and/or aesthetics
An inorganic transparent material composed of silica (sand), soda (sodium carbonate), and lime (calcium carbonate) with small quantities of alumina, boric, or magnesia oxides
The transfer of heat from inside to outside by means of conduction, convection, and radiation through all surfaces of a house
An upright frame member of a panel in a sliding glass door/window which engages with a corresponding member in an adjacent panel when the door/window is closed. Also called interlocking stile
Handle used for raising the lower sash in a vertical sliding sash window. Also called sash lift
A major structural vertical or horizontal member between window units or sliding glass doors (see also floating mullion)
Window that can be opened for ventilation
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
The deflection of a light ray from a straight path when it passes at an oblique angle from one medium (such as air) to another (such as glass)
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
An element of low conductance placed between elements of higher conductance to reduce the flow of heat. Often used in aluminum windows
The invisible rays of the spectrum that are outside of the visible spectrum at its short-wavelength violet end. Ultraviolet rays are found in everyday sunlight and can cause fading of paint finishes, carpets, and fabrics
A strip of resilient material used for covering the joint between the window sash and frame in order to reduce air leaks and prevent water from entering the structure