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  • *The Design of Ecological Buildings: Shading Traditional shading technology New shading technology

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *What not to do - Beijing housing: vegetation but not much shading

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *What not to do - Balconies are enclosed and no longer provide shading

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *What not to do worst case

    Which way is south? Where is the window shading?

    Can occupants possibly be comfortable without air conditioning?

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Mediterranean ClimateClosest to the ideal climate - warm but dry with mild winters. People must protect themselves from the intense heat of summer and extreme light by shading and thermal mass.

    Life slows down in summer, as cooling is not always affordable.

    Arcades and verandahs create microclimates merging the bright outside with the cold dark indoors

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • Marine West-coastal climateNot too hot, not too cold the oceans have a calming influence on the temperature on land. The strong winds and rain that come with the cold winter make this a good environment for people to work in, as long as they have warmth and protection

    A balance is required between daylight and insulation large windows allow natural lighting and ventilation.The low embodied energy of Georgian houses, using brick, wood and glass, has proved very sustainable for over 200 years

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Subtropical ClimateA pleasant climate for most of the year, but summers are humid so ventilation is a necessity.

    The Japanese and Chinese developed systems of dynamic walls to create buffer zones between inside and outside, providing more comfortable summer spaces.

    Houses in the southern US use the porch as a buffer zone. In Japan the sliding screens allow maximum cross ventilation. Chinese roundhouses contain a protected fully sustainable community

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Solar ShadingVilla Shodhan, AhmadabadUnite Building, Marsailles, FranceShading devices and roof gardens provide excellent shade and comfort for south facing walls

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Window shading inMumbai, India

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

    *A school in Gujarat, India note the depth of the facade

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Solar ShadingProtective shading in Brazil. Adjustable louvers between fixed vertical concrete fins

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Housing in Zimbabwe another deep faade and a good use of pre-cast concrete

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *New facade technologies many new high rise buildings in Europe are experimenting using double skin wall technology- allowing natural ventilation and adjusting to summer and winter climate conditions

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *Shading Design

    1. Determine when shading is needed

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *2. Determine elevation and azimuth of sun when shading is needed

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *3. Choose a shading device fixed .

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • * or movable

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *In hot climates, south-facing windows are best because they bring in the least heat

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002

  • *4. Determine size of shading device

    Example: movable south-facing shading

    The Design of Ecological Buildings Lighting and ShadingInternational Seminar on Green Housing, Guangzhou, China, June 2002