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Summary: Building dictionary to explain building jargon and terminology from A - Z.
Flush bolt
A door bolt or other bolt mounted on a surface.
Flush door
A door with flush surfaces and concealed structural parts.
Flush glazing
Glazing in which glass is set in a channel, which may be formed by a rabbet and stops, in a frame. The glazing, formed or a compound, is flush with the frame at the top of the channel.
Flush joint
Any joint with its surface flush with the adjacent surfaces.
Flush moulding
Any moulding that is flush with the surface on which it sits.
Flush panel
A panel in which the exposed surface is in the same plane as the exposed surfaces of the surrounding frame.
Flush paneled door
A door with one or both surfaces in the same planes as the surfaces of the rails and stiles.
Flush pipe
A straight pipe that carries flushing water from a cistern or other main source to plumbing fixtures, such as toilets, equipped with a flushing function.
Flush plate
In electricity, the metal or plastic cover that shields the flush wiring device in a wiring box and provides covering for an outlet or switch, with holes cut into its face to accommodate switch handles and plugs.
Flush ring
A door pull mortised into a door, having a pulling ring that folds flat into a recess when not in use.
Flush switch
An electrical switch installed in a flush wall box in such a way that only its front face is exposed to view.
Flush tank
A tank that holds water for flushing one or more plumbing fixtures.
Flush valve
A valve installed in the bottom of a toilet tank to discharge the water needed to flush the fixture.
Flush-cup pull
A door pull for a sliding door. The pull is mortised flush into the door and has a curved recess serving as a finger grip.
Flush-head rivet
A rivet with a countersunk head.
Flushometer (flushometer valve)
A flushing valve, designed for use without a flush tank or cistern, that is activated by direct water pressure to deliver a certain quantity of water for flushing needs.
Flute
In architecture, one of multiple grooves or channels of semi-circular to semi-elliptical sections, used to decorate and to embellish members, such as the shafts of columns.
Flux
(1) A substance that facilitates the fusion of metals and helps prevent surface oxidation during welding, brazing, and soldering. (2) A liquefied bituminous substance used to soften other bituminous materials.
Fly ash
The finely divided residue resulting from the combustion of coal which is transported from the fire box through the boiler by flue gases. Fly ash is a common additive to concrete to improve strength, workability, and waterproof qualities.
Flying buttress
A masonry structure that transfers the horizontal thrust of a roof or vault to a detached pier or buttress, usually sloping slightly towards the pier or buttress.
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