#Glazing + Lighting

environmental sustainable design
glazing & (day)lighting

glazing
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lighting
• Terms
– Luminous Flux
– Luminous Intensity
– Illuminance
– Luminance
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glazing
Terminology
• U Value W / m 2.K
– Measurement of insulation
– Non Solar heat loss
– The lower the value the better.
– Values range from 2.0-10.0
• SHGC Solar Heat Gain Coefficient
– Values from 0 to 1
– Lower value the better
– Conduction of direct solar heat through
a window.
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glazing
Terminology
• Transmittance
– Light transference
– Values between 0 -1
– The higher the value
the more light.
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glazing
• properties
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glazing
Window Wall Ratio
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glazing
• Skylight spacing
• Ducted Lighting
– (anidolic ceiling)
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glazing
North Facade
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glazing
Outlook
• Maintain a sky view
above 25 o to the horizon.
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glazing
• transmittance
with low-e film
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glazing
• thermagraph
Triple glazed window
Double glazed
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glazing
• Window location
– Daylight factor
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glazing
• U Values
– Heat Transmittance
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glazing
• Frames
– Thermal Bridging
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lighting
• Homogenous Lighting
From dynamic natural light to artificial
homogenous lighting
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lighting
• C0 2 Emissions for light sources
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lighting
• Daylighting
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lighting
Type Climate Attachment
• Daylighting
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lighting
• AS1680.1Interior Lighting
– Light levels
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