Architectural and Engineering Glossary
G
On drawings,abbr. for glass.
See till.
A sloped embankment in front of a fortification,so raised as to bring an advancing enemy into the most direct line of fire.
In hot water piping,a joint that permits movement resulting from thermal expansion or contraction.
A seal used to prevent leakage between a fixed part and a movable part.
The sensation produced by brightnesses within the visual field that are sufficiently greater than the luminance to which the eyes are adapted to cause annoyance,discomfort,or loss in visual performance and visibility.
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In a fire protection system,a sprinkler which opens under the influence of heat by the breakage of a glass bulb;the bulb breaks as a result of the pressure exerted by the expansion of the liquid which it contains.
Any binding material used to cement glass to another piece of glass or other material.
A closely-woven cloth fabricated of glass fibers;often used as a finishing jacket over thermal insulation for piping.
A concrete slab or panel in which individual translucent glass lenses have been set,usually in a geometric pattern,to permit passage of light.
A hand tool used for scoring or cutting glass;consists of a small,sharp wheel of hardened steel which is set in a handle,or a tool with a diamond point.
A door of thick,heat-strengthened or tempered glass;there are no rails or stiles.
See fiberglass.
1.British term for greenhouse.2.A residence having exterior walls which are almost completely glass;an outstanding example is Philip Johnson’s glass house in Connecticut.
A type of fine sandpaper,made with powdered glass as the abrasive.
A pipe fabricated from a low-expansion borosilicate glass having a low alkali content;used primarily for the drainage of various corrosive liquids;very brittle and therefore used only where protection is provided against mechanical damage to the pipe.
Concrete that has been reinforced by the addition of glass fibers to the concrete mix.
A fracture in limestone that has been recemented and annealed by deposition of transparent calcite;limestone containing such a seam is structurally sound.
Same as glass wool.
The size of a piece of glass required for glazing a given opening,allowing suitable clearance between the edge of the glass and the rebate.
Same as glass tile.
A glazing bead.2.A fitting which holds the lower end of a patent glazing bar;prevents the pane from sliding down.
1.A coating applied to a glass surface,usually to tint the glass a desired color or to control the amount of solar radiation that is transmitted through the glass.The coating may be applied as the molten glass passes along a long continuous oven;alternatively,the coating may result from dipping the glass into a chemical solution,and then drying and firing it.2.A metal coating evaporated on a surface while it is under a vacuum.
Tile fabricated of translucent or transparent glass;installed in a roof surface to allow light to enter the room below.
Spun glass fibers in bulk form;resembles wool;used as thermal insulation,in air filters,and in fabricating fiberglass blankets,boards,and tile.Also see mineral wool,fiberglass.
1.A ceramic coating,usually thin,glossy,and glass-like,formed on the surface of pottery,earthenware,etc.2.The material from which the ceramic coating is made.3.To install glass in windows,doors,storefronts,curtain walls,and various other segments of building construction.
1.In built-up roofing having a smooth surface,the top layer of asphalt.2.A temporary coating of bitumen used to protect the plies of built-up roofing when the application of the top pouring and surfacing is delayed.3.A layer of thin,almost transparent,colored paint which allows an undercoat to show through.
1.Said of an opening that is filled with sheets of glass,as in a window.2.Said of a finish that is composed of ceramic materials fused into its surface,usually making it essentially impervious to moisture.
A concrete block that has been glazed on one side,thereby providing the side with a smooth,hard surface;often colored.
A brick that has been fired in a kiln hot enough to fuse the clay and sand on its surface,usually forming a dark glassy coating.
A glazed ceramic tile having a body that is suitable for interior use,usually nonvitreous;not fabricated for use under conditions of excessive impact or of freezing and thawing.
Ceramic tile having a fused impervious glazed surface finish (clear, white,or colored) composed of ceramic materials fused into the body of the tile;the body may be nonvitreous,semivitreous,or impervious.
Brickwork built with enameled brick or glazed brick.
A waterproof surfacing applied on a masonry surface.
A putty knife shaped like a chisel,used in setting glass.
A thin small three or four-cornered piece of sheet metal,used to hold a pane of glass in a window frame while putty is applied.
A type of glazing compound.Also see putty.
1.Setting glass in an opening.2.The glass surface of a glazed opening.
One of the vertical or horizontal bars within a window frame which hold the panes of glass;a muntin.
1.Same as bead,3.2.At a glazed opening,removable trim that holds the glass firmly in place.
Same as setting block.
Same as glazier’s point.
A metal clip used to retain a pane of glass in a metal frame while glazing compound is applied.
A transparent wash,used to cover a ground coat of paint.
A putty-like material used to seal window glass in place;differs from putty,1 in that it retains its plasticity for an extended period of time.
A small strip of wood used to hold glass in a rebate;a glass stop.
A prefabricated strip of material used to seal and secure glass,or sealed glazing units,into frames and openings by a dry glazing method without using compounds or tapes.
1.A molding which serves as a glazing fillet.2.A glass stop, 2.
Same as glazier’s point.
A rabbet,3 that receives the glass in a window frame or glazing bar.