Glass and Glazing Questions with
correct answers
Advanced Glazing systems - correct answer ✔✔ glass is the most used cladding material for tall
buildings due to its strength, light weight, durability, and wide range of available and thermal
properties
glass ingredients - correct answer ✔✔ glass is made from: sand (silicone dioxide), soda ash
(sodium hydroxide or sodium carbonate), lime (calcium), alumia, potassium oxide
glass thicnkesses - correct answer ✔✔ thickness range from approximately 3/32 inch (single
strength) to 1/8 inch (double strength) to 1 inch
heat treatments such as tempering impact glass strength and uses
float glass - correct answer ✔✔ sheet of glass made by floating molten glass on bed of molten
metal
tempered glass - correct answer ✔✔ produced by cutting annealed glass to required size
reheating and then cooling rapidly. higher strength and breaks into small shards
annealed glass - correct answer ✔✔ regular gloat glass which is cooled slowly to reduce in built
stress
heat-strengthened glass - correct answer ✔✔ between annealed and tempered with breakage
behavior like annealed
, laminated glass - correct answer ✔✔ sandwich of multiple layers of glass with polyvinyl butyral
(PVB) interlayer. Suitable for security applications as glass stays in places
patterned glass - correct answer ✔✔ hot glass can be rolled into sheets with many different
surface textures and patterns to obscure vision for privacy
fritted glass - correct answer ✔✔ pigmented glass particles called frits are used to imprint glass.
glass is dried and fired in tempering furnace to make it permanent
spandrel glass - correct answer ✔✔ sued to cover bands of floor/wall around the floor edges.
usually tempered or heat strengthened with insulation behind them
glass for controlling solar radiation - tinted glass - correct answer ✔✔ made by adding small
amounts of selected chemical elements to the molten glass mixture
glass for controlling solar radiation - reflective glass or solar control glass - correct answer ✔✔
think durable films of metal or metal oxide are deposited on the surface of either tinted glass or
clear glass to make the glass reflective
impact of glass type on control of visible light and solar radiation - correct answer ✔✔ SLIDE 7
PICTURES - transmitted radiation, reflected radiation absorbed radiation, re-radiation
Insulating Glass Unit - correct answer ✔✔ made of multiple glass with sealed air space reducing
conductance
space filled b air or inert gas in a hermetically sealed cavity
performance given in terms of U values
correct answers
Advanced Glazing systems - correct answer ✔✔ glass is the most used cladding material for tall
buildings due to its strength, light weight, durability, and wide range of available and thermal
properties
glass ingredients - correct answer ✔✔ glass is made from: sand (silicone dioxide), soda ash
(sodium hydroxide or sodium carbonate), lime (calcium), alumia, potassium oxide
glass thicnkesses - correct answer ✔✔ thickness range from approximately 3/32 inch (single
strength) to 1/8 inch (double strength) to 1 inch
heat treatments such as tempering impact glass strength and uses
float glass - correct answer ✔✔ sheet of glass made by floating molten glass on bed of molten
metal
tempered glass - correct answer ✔✔ produced by cutting annealed glass to required size
reheating and then cooling rapidly. higher strength and breaks into small shards
annealed glass - correct answer ✔✔ regular gloat glass which is cooled slowly to reduce in built
stress
heat-strengthened glass - correct answer ✔✔ between annealed and tempered with breakage
behavior like annealed
, laminated glass - correct answer ✔✔ sandwich of multiple layers of glass with polyvinyl butyral
(PVB) interlayer. Suitable for security applications as glass stays in places
patterned glass - correct answer ✔✔ hot glass can be rolled into sheets with many different
surface textures and patterns to obscure vision for privacy
fritted glass - correct answer ✔✔ pigmented glass particles called frits are used to imprint glass.
glass is dried and fired in tempering furnace to make it permanent
spandrel glass - correct answer ✔✔ sued to cover bands of floor/wall around the floor edges.
usually tempered or heat strengthened with insulation behind them
glass for controlling solar radiation - tinted glass - correct answer ✔✔ made by adding small
amounts of selected chemical elements to the molten glass mixture
glass for controlling solar radiation - reflective glass or solar control glass - correct answer ✔✔
think durable films of metal or metal oxide are deposited on the surface of either tinted glass or
clear glass to make the glass reflective
impact of glass type on control of visible light and solar radiation - correct answer ✔✔ SLIDE 7
PICTURES - transmitted radiation, reflected radiation absorbed radiation, re-radiation
Insulating Glass Unit - correct answer ✔✔ made of multiple glass with sealed air space reducing
conductance
space filled b air or inert gas in a hermetically sealed cavity
performance given in terms of U values
