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Term Definition
Paper-Base Laminate. (See Laminate, Paper-Base).  
Paperboard. The distinction between paper and paperboard is not sharp, but broadly speaking, the thicker (over 0.012 inch), heavier, and more rigid grades of paper are called paperboard.  
Papreg. Any of various paper products made by impregnating sheets of specially manufactured high-strength paper with synthetic resin and laminating the sheets to form a dense, moisture-resistant product.  
Para Red. Pigment which is coal tar product; brilliant, opaque, non-fading, but has tendency to bleed.  
Parabola. An open plane curve formed by the intersection of a cone with a plane parallel to its side.  
Parabolic Troffer. A channel-like enclosure for light sources with a reflector shaped to control the light in a narrow beam.  
Paraffin Oil. Light gravity mineral oil used as a lubricant in wood finishing.  
Parallel Application. The long dimension of the gypsum board applied in the same direction as the framing members; also called Vertical Application or With Framing.  
Parallel Bar. A pair of bars on a support adjustable in height and spacing that are parallel to each other and are used for gymnastic exercises.  
Parallel Circuit. Arrangement of electrical devices in which the current divides and travels through two or more paths and then returns through a common path.  
Parallel Rule. A device mounted on a drawing board to enable a drafter to produce parallel horizontal lines, and with triangles, to produce parallel vertical or sloping lines.  
Parallel. Lines side by side, equidistant, and never meeting.  
Parapet Wall. That portion of any exterior wall, party wall, or fire wall which extends above the roof line.  
Parapet. The region of an exterior wall that projects above the level of the roof.  
Parcel. A tract or plot of land under one legal description.  
Parge. 1. To apply ornamental plaster to. 2. To apply waterproofing plaster to.  
Parget. Parge.  
Pargeting. Parging.  
Parging. 1. Ornamental plaster. 2. Application of cement plaster as a part of a waterproofing system, as on foundation walls and rough masonry.  
Parking Barrier. A structure either temporary or permanent, that is placed to prevent the encroachment of vehicles.  
Parking Stall Painting. The act or process of painting border lines for the parking of individual motor vehicles.  
Parol Evidence Rule. The meaning of a contract cannot be changed by reference to statements made by the parties to the contract before the contract was formed.  
Parquet Floor. A floor covering laid out in a geometric design composed of small pieces of wood.  
Partial Joint Penetration. Joint penetration which is less than complete.  
Partial Pressures. Condition where two or more gases occupy a space and each one creates part of the total pressure.  
Particleboard Underlayment. Flat sheet material of particleboard placed over subflooring to provide a smooth and even surface to receive finish floor covering.  
Particleboard. A building panel composed of small particles of wood and resins bonded together under pressure; lat sheet material producing a durable and dimensionally stable product which is often used in dry conditions in place of plywood.  
Particle-Size Distribution. The gradation in size of aggregate particles used in concrete, usually expressed in terms of cumulative percentages smaller or larger than each of a series of sieve openings or percentages between certain ranges of sieve openings.  
Parting Bead. A narrow vertical strip in a double-hung window frame separating the upper and lower sashes; also called Parting Stop.  
Parting Compound. A substance applied to concrete formwork to prevent concrete from adhering.  

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