Air Chambers: Spaces built into a window frame that strengthen the window and improve on insulation.
Air Leakage Rating: Measures the rate of infiltration through the window in case of a strong wind.
Argon: Gas forced into the space between two panes of a double-paced window, in order to increase energy efficiency.
Brand: The name a window is sold under - in most cases it has no relation to the identity of the manufacturer.
Capping: Finishing off the exterior of a newly installed window.
Condensation: Frost or moisture formed on the inside of the window.
Contractors License: State-authorized form that permits contractors to perform work related to home improvement.
Dead-Air Space: Air-space between double and triple-pane windows.
Egress Code: Internationally valid law that specifies that a window must be wide enough for a person to get out in case of fire or other security concerns.
Fenestration: Refers to the window with all its interior and exterior elements.
Glazing: Glass or plastic panes in a window.
Heat Lamp: Device demonstrating the ability of a window to stop heat transfer.
Installation: Refers to the process of removing old windows and replacing them with new constructions.
Krypton: A more expensive alternative to Argon.
R Value: It measures a given material's resistance to heat.
Spacer: Material that separates and binds panes of glass together in a double-or triple pane window construction.
Triple Pane: Window constructed with three panes of glass.
U Rating: Measures the amount of heat transferred through the window glass.
Visible Transmittance: The percentage of visible light transmitted by windows.
Wrapping: The process of installing the new window into the exterior wall of the home.
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