City of Virginia Beach Pattern Book
Plumbing waste line – Plastic pipe used to collect and drain sewage waste.
Ply – A term to denote the number of layers in any finished piece of material (such as roofing felt, veneer in plywood, or layers in other built-up materials).
Plywood – A panel (normally 4' x 8') made of three or more layers of wood veneer, compressed and joined with glue. Layers are usually assembled with the grain at right angles to one another, in order to add strength to the panel.
Polybutylene – A type of plastic, commonly gray in color. Often used in pipes for domestic water supply systems. Some polybutylene plumbing systems have been recalled due to a history of leaks and failure.
Polyisocyanurate foam – A rigid foam board insulation often used in areas where there is not enough room for standard batt insulation. Insulation is one of the least expensive ways to reduce energy consumption.
Post – A vertical framing member usually designed to carry a beam. Often a 4- by 4-inch or 6- by 6-inch piece of wood, or a metal pipe with a flat plate on top and bottom.
Pressure relief valve – A device mounted on a hot water heater or boiler designed to release high steam pressure in the tank and thus prevent tank explosions.
Pattern Book Appendices: Appendix B: Glossary: Construction Terms
Pressure-treated wood – Lumber that has been saturated with one or more chemical preservatives to guard against decay.
Primer – A base-coat that is applied first, to prepare a surface for painting. Primer is like paint, but contains no colored pigments. It is formulated to seal raw surfaces and to bond with the layer of paint that will be applied on top of the primer.
Property survey – A survey to determine the official, legal boundaries of a property. Cost depends on the complexity of the survey.
Property inspections and reports – A limited visual inspection to identify the general features and major deficiencies of a property. Any area that is not exposed to view, is concealed, or is inaccessible will not be included in the inspection.
Proposal – A written offer from a bidder to the owner, preferably on a prescribed proposal form, to perform the work and to furnish all labor, materials, equipment and/or services for the prices and terms quoted by the bidder.
Purchase order – A written contract, from a buyer to a seller, for purchase of materials,
services, acceptable purchase terms indicated.
P-trap – Curved, U-shaped section of drain pipe that holds a water seal. Used to prevent sewer gasses from entering the home through pipes or plumbing fixtures.
equipment or supplies with
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