WELCOME TO OUR Building dictionary : Flash to flemish double stretcher bond PROJECT
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Summary: Building dictionary to explain building jargon and terminology from A - Z.
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Building dictionary for the letter F - Page 12
Flash
(1) To make a joint weathertight using flashing. (2) An intentional or accidental color variation on the surface of a brick. (3) A variation in paint color resulting from variable wall absorption. (4) The conversion of condensate into steam.
Flash point
(1) The minimum temperature at which a combustible liquid will give off sufficient vapor to produce a combustible mixture when mixed with air and ignited. Defined flash points are for specific enclosure conditions and ignition energy. (2) The temperature at which a substance will spontaneously ignite.
Flash set (quick set)
The rapid development of rigidity in a freshly mixed Portland cement paste, mortar, or concrete, usually with the evolution of considerable heat. This rigidity cannot be dispelled, nor can the plasticity be regained, by further mixing without addition of water.
Flash welding
A welding process that joins metals with the heat produced by the resistance to an electric current between the surfaces of the metals, followed by application of pressure.
Flashing
A thin, impervious sheet of material placed in construction to prevent water penetration or direct the flow of water. Flashing is used especially at roof hips and valleys, roof penetrations, joints between a roof and a vertical wall, and in masonry walls to direct the flow of water and moisture.
Flat
(1) Descriptive of a structural element having no slope, such as a flat roof. (2) One floor of a multilevel building, or full-floor apartment. (3) Descriptive of low gloss paint, used either as an undercoat or as a final coat. (4) A thin iron or steel bar with a rectangular cross section.
Flat glass
See window glass, late glass, float glass, and rolled glass.
Flat paint
A paint that dries to a low gloss or flat finish.
Flat plate
(1) See sheet metal. (2) A slab without column capitals or drop panels. See also flat slab.
Flat plate collector
A panel of metal or other suitable material used to convert sunlight into heat. Flat plate collectors are usually a flat black color and transfer the collected heat to circulating air or water.
Flat rolled
Steel plates, sheets or strips manufactured by rolling the steel through flat rollers.
Flat roof
A roof with only enough pitch to allow drainage.
Flat seam
A seam between two joined sheets of metal, formed by turning up, folding, flattening, and finally soldering the edges.
Flat slab
A concrete slab reinforced in two or more directions, generally with drop panels at supports, but without beams or girders. See also flat plate.
Flat spot
A spot on a glossy painted surface that fails to absorb the paint properly, usually because of a porous place on the undercoat, resulting in a flat finish that flaws the appearance of the surface.
Flat-chord truss
A truss with the top and bottom chords nearly flat and parallel.
Flathead
(1) A screw or bolt with a flat top surface and a conical bearing surface. (2) A rivet with a flattened head.
Flemish bond
A brick wall laid up with alternate headers and stretchers in each course. Headers in the next course are centreed over the stretchers in the course below.
Flemish diagonal bond
Alternating headers and stretchers in a course, followed by a course of stretchers.
Flemish double-stretcher bond
A configuration of a header alternated with two stretchers.
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