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16 Cards in this Set
- Front
- Back
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Window frame materials |
- wood (natural, painted or metal-clad) - vinyl (PVC) - fibreglass (composite) - aluminum (anodized finish) - steel (painted) |
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Comparison of material types |
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Window performance issues |
- Thermal - choice of glazing (week 7) - thermal break (for metal-frame windows)
- water resistance - rainscreen x faceseal
- if water gets into frame how does it get out? |
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Thermal Breaks |
- depending on the material, ahuge amount of heat loss occurs through conduction directly through the window frame
- metals windows are now required to have a thermal break in the middle of the frame
- this is made of a high thermal resistance material (eg. plastic) and reduces heat loss significantly. |
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Water resistance |
- some window types have had problems with water leakage
- new rainscreen windows are higher performance
- rainscreen design ensures that water can drain through the window |
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Types of windows |
- residential (small scale) - nail-on flange - rebate
- commercial & high building - store front door/window systems - punched (strip windows or rebate windows) - window wall (attached to wall below and above it) - curtain wall (anchor system that holds it inplace)
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Residential windows |
great variety of window types: - window location - room function - public x private |
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Nail-on Windows |
- usually vinyl - flange is nailed onto the exterior sheathing - common residential type |
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Rebate windows (punched windows) |
- recessed further into the wall - better weather protection |
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Types of Opening Windows |
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Storefront Door/Window Systems |
- maximum visibility and light - commercial system (retail/office/institutional buildings) |
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Window Systems - High buildings |
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Punched windows (strip windows) |
- set into wall framing - may be single or in strips - connected by "coupler mullions" |
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Window wall systems |
- floor to ceiling glazing - sits on the concrete floor slab (may or may not protrude) - common in residential high-rise
- havev had problems with water leakage - new rainscreen windows are higher performance - rainscreen design ensures that water can drain through the window (see red arrow) |
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Curtain wall |
- outer "curtain" of window glazing & framing - tied back to the concrete slab edge with steel connection - non-structural eg. doesnt support floor load |
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Curtain wall glazing systems |
- windows as wall cladding - window system carries own dead load - multi storey - higher performance (wind load) - more expensive |
