BUILDING TECHNOLOGY FINAL EXAM
correctly answered to pass
What are the advantages of float glass over Plate glass? - correct answer ✔✔Float glass has higher
optical quality, high finish quality, due to the molten tin mold process the glass does not need to be
polished with abrasives (therefore less labor intensive).
What is the proper terminology associated with the installation of glass in an opening or to the material
itself? What are individual pieces of glass called (spelling is important)? - correct answer ✔✔Glazing -
installation/material
Lites - individual pieces
National Glazing Association 2020 Top Manufacturers
Thickness of Glass - correct answer ✔✔Determined by lite size and wind load
Annealed glass - correct answer ✔✔A glass that is cooled slowly to relieve internal stresses.
Heat-treated Glass - correct answer ✔✔Produced by reheating annealed glass
Cooling both surfaced rapidly with air
Creates compressive stress on face and edges while tensile stresses are created in the core
tempered glass- heat treated glass - correct answer ✔✔•Has high strength qualities
•Breaks into small squared-edges (not sharp-edged pieces)
Name two situations in which you might use tempered glass? - correct answer ✔✔Safety Glazing in
places with potential for occupant impact
Glass Doors with no framing
Sports applications (squash, handball, basketball, hockey)
, Laminated glass - correct answer ✔✔•Bonded to Polyvinyl Butyral Interlayer between two sheets of
glass
•Held together if broken by the interlayer
•May be colored or patterned
•Good sound barrier compared to solid glass
•Blocks most Ultra Violet light
•Can contribute to lower Damage Weighted Transmittance (Tdw 1-0)
name two situations you might use laminated glass - correct answer ✔✔Skylights and overhead glazing
Residences
Classrooms
Hospital rooms
Can be made to protect from bullets
fritted/spandrel glass - correct answer ✔✔•Imprinted with silkscreened patterns or ceramic based paints
•Can come in multiple colors
•Can be used as spandrel glass
Name two situations in which you might use Fritted/Spandrel Glass? - correct answer ✔✔Office
Buildings
Residential Buildings
Mercantile/Retail Stores
Any situation where a glass wall extends past the floor edge
Visible Light Transmittance (VT): - correct answer ✔✔the visible light that passes through the glass
relative to the amount of light striking the glass.
Solar Heat Gain Coefficient (SHGC) - correct answer ✔✔the ratio of solar heat admitted through a
particular glass to the total heat energy striking the glass.
correctly answered to pass
What are the advantages of float glass over Plate glass? - correct answer ✔✔Float glass has higher
optical quality, high finish quality, due to the molten tin mold process the glass does not need to be
polished with abrasives (therefore less labor intensive).
What is the proper terminology associated with the installation of glass in an opening or to the material
itself? What are individual pieces of glass called (spelling is important)? - correct answer ✔✔Glazing -
installation/material
Lites - individual pieces
National Glazing Association 2020 Top Manufacturers
Thickness of Glass - correct answer ✔✔Determined by lite size and wind load
Annealed glass - correct answer ✔✔A glass that is cooled slowly to relieve internal stresses.
Heat-treated Glass - correct answer ✔✔Produced by reheating annealed glass
Cooling both surfaced rapidly with air
Creates compressive stress on face and edges while tensile stresses are created in the core
tempered glass- heat treated glass - correct answer ✔✔•Has high strength qualities
•Breaks into small squared-edges (not sharp-edged pieces)
Name two situations in which you might use tempered glass? - correct answer ✔✔Safety Glazing in
places with potential for occupant impact
Glass Doors with no framing
Sports applications (squash, handball, basketball, hockey)
, Laminated glass - correct answer ✔✔•Bonded to Polyvinyl Butyral Interlayer between two sheets of
glass
•Held together if broken by the interlayer
•May be colored or patterned
•Good sound barrier compared to solid glass
•Blocks most Ultra Violet light
•Can contribute to lower Damage Weighted Transmittance (Tdw 1-0)
name two situations you might use laminated glass - correct answer ✔✔Skylights and overhead glazing
Residences
Classrooms
Hospital rooms
Can be made to protect from bullets
fritted/spandrel glass - correct answer ✔✔•Imprinted with silkscreened patterns or ceramic based paints
•Can come in multiple colors
•Can be used as spandrel glass
Name two situations in which you might use Fritted/Spandrel Glass? - correct answer ✔✔Office
Buildings
Residential Buildings
Mercantile/Retail Stores
Any situation where a glass wall extends past the floor edge
Visible Light Transmittance (VT): - correct answer ✔✔the visible light that passes through the glass
relative to the amount of light striking the glass.
Solar Heat Gain Coefficient (SHGC) - correct answer ✔✔the ratio of solar heat admitted through a
particular glass to the total heat energy striking the glass.
