City of Virginia Beach Pattern Book
Tread – The walking surface board in a stairway on which the foot is placed.
Treated lumber – A wood product impregnated with chemicals to reduce damage from wood rot or insects. Often used for the portions of a structure likely to be in ongoing contact with soil and water such as a deck. Wood may also be treated with a fire retardant.
Trim (plumbing, heating, electrical) – The work that the mechanical contractors perform to finish their respective aspects of work. Performed when the home is nearing completion and occupancy.
Trim, exterior – The finish materials on the exterior a building, such as moldings applied around openings (window trim, door
trim),
siding, windows, exterior doors, attic vents, crawl space vents, shutters, etc. Also, the physical work of installing these materials.
Trim, interior – The finish materials in a building, such as moldings applied around openings (window trim, door trim) or at the floor and ceiling of rooms (baseboard, cornice, and other moldings). Also, the physical work of installing interior doors and interior woodwork, to include all handrails, guardrails, stair way balustrades, mantles, light boxes, base, door casings, cabinets, countertops, shelves, window sills and aprons, etc.
Truss – A manufactured wood member often in the form of a large triangle used to form the ceiling joists and rafters on the top floor of a home.
Pattern Book Appendices: Appendix B: Glossary: Construction Terms
Turnkey – A term used when the subcontractor provides all materials (and labor) for a job.
U
Underwriters Laboratories (UL) – An independent testing agency that checks electrical devices and other components for possible safety hazards.
Underlayment – A material placed over the subfloor plywood sheeting and under finish coverings, such as vinyl flooring, to provide a smooth, even surface. Also a secondary roofing layer
waterproof or water-resistant, installed on the roof deck and beneath shingles or other roof-finishing layer.
Union – A plumbing fitting that joins pipes end-to-end so they can be dismantled.
Unit price contract – A written contract wherein the owner agrees to pay the contractor a specified amount of money for each unit of work successfully completed, as set forth in the contract.
Unit prices – A predetermined price for a measurement or quantity of work to be performed within a specific contract. The designated unit price would
associated with the measurement or quantity established. include all labor materials, equipment or services that is
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