The following is a glossary of terms referred to within our website. This is a compilation of terms that are commonly used in the window, door, and siding industry.
Windows that are hinged on the top that opens outward.
Multi-panel windows, with at least three panels set at different angles to create a protrusion from the wall.
Windows that are hinged on either side that usually open outward.
Windows set in a roof structure or high in a wall, used for adding daylight.
Double Hung Windows
Windows that have two operable sashes that slide vertically.
Windows that cannot be opened, whose function is limited to allowing light to enter (unlike an unfixed window, which can open and close).
Two doors, interior or exterior, that are hinged to swing inward or outward.
French Rail Patio Doors
Sliding patio doors with a large bottom sill to mimic traditional french doors.
Windows that are hinged on the bottom that open inward or outward.
Windows with parallel slats of glass or acrylic that open and close like a Venetian blind, usually using a crank or a lever.
Large fixed windows in a wall, intended to provide an unimpeded view.
Sloped windows built into a roof structure that are used for daylight.
Single Hung Windows
Windows with one moving sash, usually the bottom sash, that slides vertically and one fixed sash that does not move.
Flat or slope windows used for daylight, built into a roof structure that is out of reach.
Windows with one fixed sash and one operable sash that slides horizontally.
The Sound Transmission Class (STC) is a single-number rating of a material’s or an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. In general, a higher STC rating blocks more noise from transmitting through a partition.
Tilt and Slide Windows
Windows with one sash that tilts inwards at the top and then slides horizontally behind the fixed pane.
Tilt and Turn Windows
Windows with on sash that can either tilt inwards at the top, or can open inwards hinged at the side.
A window located above a door.
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