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P | Construction TermsThe glossary below contains construction terms commonly used by architects and contractors. Simply click on any letter below for a detailed list of construction terms and definitions.Padding A material installed under carpet to add foot comfort, isolate sound, and to prolong carpet life. Pad Out, Pack Out To shim out or add strips of wood to a wall or ceiling in order that the finished ceiling/wall will appear correct. Paint A combination of pigments with suitable thinners or oils to provide decorative and protective coatings. Can be oil based or latex water based. Pallets Wooden platforms used for storing and shipping material. Forklifts and hand trucks are used to move these wooden platforms around. Panel A thin flat piece of wood, plywood, or similar material, framed by stiles and rails as in a door (or cabinet door), or fitted into grooves of thicker material with molded edges for decorative wall treatment. Paper, Building A general term for papers, felts, and similar sheet materials used in buildings without reference to their properties or uses. Generally comes in long rolls. Parapet A wall placed at the edge of a roof to prevent people from falling off. Parting Stop or Strip A small wood piece used in the side and head jambs of double hung windows to separate the upper sash from the lower sash. Particle Board Plywood substitute made of course sawdust that is mixed with resin and pressed into sheets. Used for closet shelving, floor underlayment, stair treads, etc. Partition A wall that subdivides spaces within any story of a building or room. Paver, Paving Materials-commonly masonry-laid down to make a firm, even surface. Pedestal A metal box installed at various locations along utility easements that contain electrical, telephone, or cable television switches and connections. Penny As applied to nails, it originally indicated the price per hundred. The term now series as a measure of nail length and is abbreviated by the letter "d". Normally, 16d (16 "penny") nails are used for framing Percolation Test or Perc. Test Tests that a soil engineer performs on earth to determine the feasibility of installing a leech field type sewer system on a lot. A test to determine if the soil on a proposed building lot is capable of absorbing the liquid affluent from a septic system. Performance BondAn amount of money (usually 10% of the total price of a job) that a contractor must put on deposit with a governmental agency as an insurance policy that guarantees the contractor's proper and timely completion of a project or job. Perimeter Drain 3" or 4" perforated plastic pipe that goes around the perimeter (either inside or outside) of a foundation wall (before backfill) and collects and diverts ground water away from the foundation. Generally, it is "daylighted" into a sump pit inside the home, and a sump pump is sometimes inserted into the pit to discharge any accumulation of water. Permeability A measure of the ease with which water penetrates a material. Permit A governmental municipal authorization to perform a building process as in: * Zoning\Use permit - Authorization to use a property for a specific use e.g. a garage, a single family residence etc. * Demolition permit - Authorization to tear Pigtails, Electrical The electric cord that the electrician provides and installs on an appliance such as a garbage disposal, dishwasher, or range hood. Pier A column of masonry, usually rectangular in horizontal cross section, used to support other structural members. Also see Caisson. Pigment A powdered solid used in paint or enamel to give it a color. Pilot Hole A small-diameter, pre-drilled hole that guides a nail or screw. Pilot Light A small, continuous flame (in a hot water heater, boiler, or furnace) that ignites gas or oil burners when needed. Pitch The incline slope of a roof or the ratio of the total rise to the total width of a house, i.e., a 6-foot rise and 24-foot width is a one-fourth pitch roof. Roof slope is expressed in the inches of rise, per foot of horizontal run. Plan View Drawing of a structure with the view from overhead, looking down. Plate Normally a 2 X 4 or 2 X 6 that lays horizontally within a framed structure, such as: * · Sill plate- A horizontal member anchored to a concrete or masonry wall. * · Sole plate- Bottom horizontal member of a frame wall. * · Top Plenum The main hot-air supply duct leading from a furnace. Plot Plan An overhead view plan that shows the location of the home on the lot. Includes all easements, property lines, set backs, and legal descriptions of the home. Provided by the surveyor. Plough, Plow To cut a lengthwise groove in a board or plank. An exterior handrail normally has a ploughed groove for hand gripping purposes. Plumb Exactly vertical and perpendicular. Plumb Bob A lead weight attached to a string. It is the tool used in determining plumb. Plumbing Boots Metal saddles used to strengthen a bearing wall/vertical stud(s) where a plumbing drain line has been cut through and installed. Plumbing Ground The plumbing drain and waste lines that are installed beneath a basement floor. Plumbing Jacks Sleeves that fit around drain and waste vent pipes at, and are nailed to, the roof sheeting. Plumbing Rough Work performed by the plumbing contractor after the Rough Heat is installed. This work includes installing all plastic ABS drain and waste lines, copper water lines, bath tubs, shower pans, and gas piping to furnaces and fireplaces. Lead solder should not be used on copper piping. Plumbing Stack A plumbing vent pipe that penetrates the roof. Plumbing Trim Work performed by the plumbing contractor to get the home ready for a final plumbing inspection. Includes installing all toilets (water closets), hot water heaters, sinks, connecting all gas pipe to appliances, disposal, dishwasher, and all plumbing items. Plumbing Waste Line Plastic pipe used to collect and drain sewage waste. Ply A term to denote the number of layers of roofing felt, veneer in plywood, or layers in built-up materials, in any finished piece of such material. Plywood A panel (normally 4' X 8') of wood made of three or more layers of veneer, compressed and joined with glue, and usually laid with the grain of adjoining plies at right angles to give the sheet strength. Point Load A point where a bearing/structural weight is concentrated and transferred to the foundation. Portland Cement Cement made by heating clay and crushed limestone into a brick and then grinding to a pulverized powder state. Post A vertical framing member usually designed to carry a beam. Often a 4" x 4", a 6" x 6", or a metal pipe with a flat plate on top and bottom. Post-and-Beam A basic building method that uses just a few hefty posts and beams to support an entire structure. Contrasts with stud framing. Power Vent A vent that includes a fan to speed up air flow. Often installed on roofs. Premium Amount payable on a loan. Preservative Any pesticide substance that, for a reasonable length of time, will prevent the action of wood-destroying fungi, insect borers, and similar destructive agents when the wood has been properly coated or impregnated with it. Normally an arsenic derivative. Chromated Copper Arsenate (CCA) is an example. Pressure Relief Valve (PRV) A device mounted on a hot water heater or boiler which is designed to release any high steam pressure in the tank to prevent tank explosions. Pressure-Treated Wood Lumber that has been saturated with a preservative. Primer The first, base coat of paint when a paint job consists of two or more coats. A first coating formulated to seal raw surfaces and holding succeeding finish coats. Property Survey A survey to determine the boundaries of your property. The cost depends on the complexity of the survey. P Trap Curved, "U" section of drain pipe that holds a water seal to prevent sewer gasses from entering the home through a fixtures water drain. Pump Mix Special concrete that will be used in a concrete pump. Generally, the mix has smaller rock aggregate than regular mix. Punch List A list of discrepancies that need to be corrected by the contractor. Punch Out To inspect and make a discrepancy list. Putty A type of dough used in sealing glass in the sash, filling small holes and crevices in wood, and for similar purposes. PVC or CPVC Poly Vinyl Chloride-A type of white or light gray plastic pipe sometimes used for water supply lines and waste pipe. |
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