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tempered glass
glass that has first been cut to size, then heated to a very high
temperature and then rapidly brought back to room temperature. It will
withstand severe punishment from a blunt object; however, any pointed
object will break the glass instantly and the glass will crumble into
many, very small pieces. Typical applications include a car’s side and
back windows, sliding glass doors, and entrance doors.
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terrace door
a door in which the operating panel swings out or in from the master
frame. Usually used in high-rise applications where passage to exterior
patios is desired, while providing weather resistance and security. Not
to be confused with entrance doors which provide ground-floor security
but little weather resistance.
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thermal break
an element of low conductivity (polyurethane) placed between elements of
higher conductivity (aluminum) to reduce the flow of heat and cold.
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thermosetting
baking the organic paint finish on aluminum to endure a tight bond and
long life.
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tilt release
hardware in a tilt hung window to hold the sash within the frame jambs
and, if desired, release the operating sash to the tilt position for
cleaning of the exterior glass and sash removal. Common release design
options include finger buttons, slots for a common tool, hardware for
special tools, or key operation.
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tilt window
a hung window in which the lower sash is removed by raising the sash 4",
releasing the tilt releases while supporting the sash weight, and
releasing the sash pivot bars to remove the sash from the master frame.
The top sash removal is similar. A tilt window cannot be a side load
window.
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tinted glass
glass of special formulation to produce light reducing and/or heat
absorbing glass products (bronze, gray or green).
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trolley
the "T" shaped extrusion on which nylon sealed bearings are attached to
allow the fluid movement of the folding glass wall, distributing its
weight evenly over both the head and sill.
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