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#Glazing + Lighting

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environmental sustainable design

glazing & (day)lighting


glazing

RMIT University©12/9/18 School of Architecture + Design 2


lighting

• Terms

– Luminous Flux

– Luminous Intensity

– Illuminance

– Luminance

RMIT University©12/9/18 School of Architecture + Design 3


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.

RMIT University©2017 School of Architecture + Design 4


glazing

Terminology

• Transmittance

– Light transference

– Values between 0 -1

– The higher the value

the more light.

RMIT University©2017 School of Architecture + Design 5


glazing

• properties

RMIT University©12/9/18 School of Architecture + Design 6


glazing

Window Wall Ratio

RMIT University©12/9/18 School of Architecture + Design 7


glazing

• Skylight spacing

• Ducted Lighting

– (anidolic ceiling)

RMIT University©12/9/18 School of Architecture + Design 8


glazing

North Facade

RMIT University©12/9/18 School of Architecture + Design 9


glazing

Outlook

• Maintain a sky view

above 25 o to the horizon.

RMIT University©12/9/18 School of Architecture + Design 10


glazing

• transmittance

with low-e film

RMIT University©12/9/18 School of Architecture + Design 11


glazing

• thermagraph

Triple glazed window

Double glazed

RMIT University©12/9/18 School of Architecture + Design 12


glazing

• Window location

– Daylight factor

RMIT University©12/9/18 School of Architecture + Design 13


glazing

• U Values

– Heat Transmittance

RMIT University©12/9/18 School of Architecture + Design 14


glazing

• Frames

– Thermal Bridging

RMIT University©12/9/18 School of Architecture + Design 15


lighting

• Homogenous Lighting

From dynamic natural light to artificial

homogenous lighting

RMIT University©12/9/18 School of Architecture + Design 16


lighting

• C0 2 Emissions for light sources

RMIT University©12/9/18 School of Architecture + Design 17


lighting

• Daylighting

RMIT University©12/9/18 School of Architecture + Design 18


lighting

Type Climate Attachment

• Daylighting

RMIT University©12/9/18 School of Architecture + Design 19


lighting

• AS1680.1Interior Lighting

– Light levels

RMIT University©12/9/18 School of Architecture + Design 20

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