glass, windows + doors Flashcards
(12 cards)
Glass form
Amorphous solid
Has the structure of a quickly cooled liquid
3 main types of glass
Soda-lime silica glass
* inexpensive + workable
* can be resoftened + remelted - recyclable
windows, bottles, jars
Lead-alkali silica glass
lead-oxide instead of soda-lime
* lower melting point, more dense
* very refractive
decorative times, glassware, optical lenses
Borosilicate glass
* boron trioxide
* low thermal expansion - resistant to shock + corrosion
laboratory glassware, cookware, high-temp applications, e.g. pyrex
Soda-lime silica glass
silica 74%
soda 15%
lime 10%
alumina 1%
Properties of soda-lime glass
- Transparent
- Chemical resistance
- Heat transferrence
- Flexible
- High embodied energy (recyclibility)
- Not porous
- Strong
Energy transfer through glass (4 kinds)
- Transmission (light/radiation passing through)
- Reflection (“” reflected off)
- Radiation (absorption/emission of heat)
- Solar Heat Gain (amount of solar energy that enters a space through glass)
Kinds of glass insulation
Douple glazed
Triple glazed
Glass failure
Impact
Wind load
Thermal expansion
Poor installation
Impurities
cladding
material applied to a building - often pre-frabricated panels supported by a sub-structure attatched a a buildings main structural frame
curtain wall
cladding system
hangs off the outside of a building
two kinds:
stick system
* traditional - components are smaller + easier to handle
* longer site construction time
* quality of site workmanship is important
panel system
* pre-fab
* better quality control
* reduced on-site construction time
* standardised handling and assembly
Doors
Swing
Sliding - face
Sliding - cavity
Sliding - patio
Bi-fold
Window
Fixed light
Horizontal sliding
Double hung
Side hung casement
Top hung awning
Bottom hung hopper
Louvre
