Architectural and Engineering Glossary
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A lighting fixture which is recessed into a ceiling so the lower edge of the fixture is flush with the ceiling.
For a mechanical fastener,a head having a specially formed indentation which is centered in its top surface.
A self-contained heating unit (see electric heating elements),set into a wall.
Same as recessed pointing.
See recessed fixture.
In a fire-protection system,one of many pendant sprinklers located within cups recessed into the ceiling.
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The replenishment of water in the ground,e.g.,through injection or infiltration from trenches outside the construction area.
Same as push drill.
Similar to a saber saw but with a heavier blade and a motor with greater power.
Air which is withdrawn from an air-conditioned space and passed through the air conditioner before being supplied once again to the conditioned space.
The minimum time between the application of one coat of paint and the application of the next coat.
Hardwood lumber that has been steam-dried to correct defects,such as collapse,warp,etc.,that occurred during the original drying process.
See artificial stone.
Same as artificial stone.
To reproduce a building in the same form and detail as it had been previously.
Same as artificial stone.
Construction drawings revised to show significant changes made during the construction process,usually based on marked-up prints,drawings, and other data furnished by the contractor to the architect.
On a construction job,a sheet or printed form for keeping a record,usually of materials delivered,number of men working at the various trades, ours worked,etc.
See heating capacity.
On drawings,abbr. for receptacle.
A wall tie of heavy wire that has been bent into the shape of a closed rectangle, about 2 in.by 6 in. (5 cm by 15 cm).
See Perpendicular style.
See perpendicular
Hardened concrete which has been crushed for re-use as an aggregate.
A metal alloy containing 85% copper and 15% zinc;has high corrosion resistance;can take a high polish;generally available in flat sheets,rod,wire,and tube.
See eastern red cedar.
Same as Douglas fir.
Decayed heartwood;in some woods it is red in color although it is commonly called brown rot.
See Philippine mahogany.
A lead compound,lead tetroxide;bright red to orange-red in color;used in corrosion resistant paints as a rust inhibitor on iron and steel.
See locust.
An oak of eastern North America;the wood is a light brown or red color;relatively heavy,hard,strong,coarse-grained;used esp.for clapboards,also for interior finish.
A mixture of hematites;any of a number of natural earths used as red pigments.
A natural or synthetic inorganic red pigment;used in paints to provide a lightfast color at a low cost; grades vary in purity,particle size,and brightness.
A type of building paper.
Brittleness of iron or steel at a red hot temperature.
A diminutive ravelin.
The restoration and improvement of an existing structure or property.
A small fortification detached from the principal site.
The level at a construction site after excavation,usually with respect to a given datum.
A backflow preventer that consists of two independently-operating check valves that are spring-loaded in a closedposition and are separated by a chamber in which there is an automatic relief vent to the atmosphere that is spring-loaded in the openposition.
A joint between two lengths of electric conductors of unequal size.
A pipe coupling,with inside threads,having one end with a smaller diameter than the other;both openings have the same center line;for connecting pipes of different size.
Any fitting,1 which isused to connect pipes of different size.
A measure of the strength of a white pigment in making another pigment appear lighter in color.
The difference between the original cross sectional area of a test specimen before being subjected to tension and the area of its smallest cross section after rupture;expressed as a percentage of the original cross-sectional area of the specimen.
In stone crushing,the ratio of the maximum dimension of stone before crushing to the maximum dimension after crushing.
A very durable,straight-grained,high-strength,moderately low density softwood from the Pacific Coast of the US; esp.resistant to decay and insect attack;light red to deep reddish brown in color;used primarily for construction,plywood,and millwork,where durability is required.
Shredded bark of the redwood tree;sometimes used as loose fill thermal insulation.
1.A small convex molding,usually one of several set close together to decorate a surface.2.(pl.) Same as reeding.3.A straw-like material prepared for thatching a roof.
