Glass and Glazing Flashcards
A hard, brittle, chemically inert substance produce by fusing silica together with a flux and stabilizer into a mass that cools to a rigid condition without crystallization.
Glass
A type of glass fabricated by drawing the molten glass from a furnace or by forming a cylinder, dividing it lengthwise and flattening it.
Sheet Glass
A type of glass formed by rolling molten glass into a plate that is subsequently ground and polished after cooling. It provides virtually clear, undistorted vision.
Plate Glass
A type of glass manufactured by pouring molten glass onto a surface of molten tin and allowing it to cool slowly.
Float Glass
Process done to glass where it is cooled slowly to relieve internal stresses.
Annealing
Annealed glass that is reheated to just below the softening point and then rapidly cooled to induce compressive stresses. It has three to five times the resistance of annealed glass to impact.
Tempered Glass
A flat or patterned glass having a square or diamond wire mesh embedded within.
Wired Glass
Has a linear or geometric surface pattern formed in the rolling process to obscure vision or to diffuse light.
Patterned Glass
Has one or both sides acid-etched or sandblasted to obscure vision. Either process weakens the glass and makes it difficult to clean.
Obscure Glass
An opaque glass for concealing the structural elements in curtain wall construction, produced by fusing a ceramic frit to the interior surface of tempered or heat-strengthened glass.
Spandrel Glass
A glass unit consisting of two or more sheets of glass separated by hermetically sealed air space to provide thermal insulation and restrict condensation.
Insulating Glass
Glass that has chemical admixture to absorb a portion of the radiant heat and visible light that strike in.
Tinted Glass
Another term for Tinted Glass.
Heat Absorbing Glass
Has a thin, translucent metallic coating to reflect a portion of the light and radiant.
Reflective Glass
Also called as low-e, transmits visible light while selectively reflecting the longer wavelengths of radiant heat, produced by depositing a low-e coating.
Low-emissivity Glass