To mark the locations of objects in a roadway under construction so they can be located after paving.
Tie wire
Wire used to secure rebar and forms when installing a foundation.
Tie-beam
The main horizontal beam in a roof, connecting the bases of the rafters, usually just above a wall.
Tie-in
The joining of two different roof systems.
Tie-off
A watertight seal used to terminate roof membranes at system adjuncts, terminations, flashings, or substrates. Can be temporary or permanent.
Tied columns
Concrete columns with lateral reinforcing members to help support a load.
Tier
Series of rows. Townships moving as a row from east to west, covering a 6-mile area in width. The term is employed under the rectangular survey method.
Tight building syndrome (tbs)
A condition in which a building is very tightly insulated against infiltration, its ventilation is reduced for energy conservation, and airborne contaminants are sufficiently elevated to cause health effects in occupants; often used synonymously with Sick Building Syndrome (SBS).
Tight market
Market in which the spreads between the asking and offer price of real estate are small. The property may be in abundant supply and actively traded.
