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Tab
In a shingle roof, each shingle.
Tankless coil
A coil inserted into a boiler to heat
water for domestic use.
Tapping before the main
Adding wires before or at the
main disconnect for the purpose of
providing more circuits to the electrical service. Not allowed.
Temperature, pressure gauge
A gauge on a boiler that
shows the current operating
temperature and pressure in the boiler.
Tempered glass
Glass that shatters into small, smooth
edged cubes when it breaks.
Tension
A stress that pulls at a structural
member tending to make that member increase in
size.
Terne metal
A copper containing steel alloy sheet
covered with an 80% lead, 20% tin
plating, used as a roof covering.
Terrazzo
A mix of marble chips and concrete laid
in squares bordered by lead beading and
polished smooth, used as a floor covering.
Texturing
Adding sand or other agents to a conventional finish on
a wall or ceiling. Also a
design put in the finish coat of plaster done manually with a trowel.
Thermal-panes
See Multiple lights.
Thermocouple
A bimetallic element that senses whether
or not the pilot is lighted and
controls the pilot control valve, turning off the flow of gas to the
pilot when the pilot flame is
out.
Thermostat
A temperature-sensitive device that opens
and closes a circuit in response to
temperature changes in the air, thereby activating a heating or cooling
system.
Thinner
See Solvent.
Throat
In a fireplace, the top of the firebox.
Tie-back
A heavy wooden post and cross piece used to anchor a
wooden retaining wall to
the soil behind it.
Tile
Concrete or clay flat, curved, or
corrugated shaped forms, used as a roof covering.
T-lock shingles
A rare style of interlocking asphalt
shingles.
Tongue and groove
Boards with the top edge of each board wider than the
lower. When
nailed in place, the top edges fit snug with no gaps.
Top plate
In platform framing, the horizontal
framing member nailed to the wall studs at
the top of each story.
Trap
A device that holds water in the plumbing
system and prevents the backflow of gases.
Tread
The horizontal portion of a step on a staircase.
Tread
The horizontal portion of a step on a
stairway.
Trim
The pieces added to the exterior siding
that protect the framework from water
penetration.
Truss
An engineered, prefabricated framing member used in
floor and roof construction.
Truss uplift
A phenomenon where the bottom chord of a
roof truss bows upward during the
cold months and returns to normal position during the warmer months.
Turbine vent
A vent with air powered vanes on a central rotating
spindle, located on the
v roof face.
Turn-off valves
Valves in the water supply system that
allow water to be turned off to
certain locations in the house. |