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Indigenous green building concepts cccea july 2010


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Indigenous green building concepts cccea july 2010

  1. 1. "Indigenous Green Building Concepts“ July 2010 <br /><br />Dr. N. Sai Bhaskar Reddy, CEO, GEO <br /><br />
  2. 2. Barbil,Orissa<br />
  3. 3. Rajmahal, Jharkhand<br />
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  8. 8. Kalahandi,Orissa<br />
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  10. 10. Manikganj,Bangladesh<br />
  11. 11. Brick pieces<br />Slag<br />Bone<br />Pottaryshards<br />Quartz<br />Biochar /Charcoal<br />
  12. 12. Slag<br />Pottaryshards<br />
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  20. 20. Introduction<br />Since the Industrial Revolution the world has witnessed<br />incalculable technological achievements <br />population growth <br />corresponding increases in resource use<br />“Side effects” of all the activities and achievements include: <br />pollution, landfills, toxic waste, global warming, resource and ozone depletion, and deforestation<br />All these efforts are straining the limits of the Earth’s “carrying capacity”— its ability to provide the resources required to sustain life while retaining the capacity to regenerate and remain viable.<br />
  21. 21. SUSTAINABLE DEVELOPMENT<br />Development that meets the needs of the present without compromising the ability of future generations to meet their own needs<br /> (The Brundtland Commission,1987)<br />
  22. 22. Indian vernacular architecture<br />Is the informal, functional architecture of structures, often in rural areas, of India, built of local materials and designed to meet the needs of the local people. The builders of these structures are unschooled in formal architectural design and their work reflects the rich diversity of India's climate, locally available building materials, and the intricate variations in local social customs and craftsmanship. It has been estimated that worldwide close to 90% of all building is vernacular, meaning that it is for daily use for ordinary, local people and built by local craftsmen.<br /><br />
  23. 23. Sustainability and the Construction Industry<br /> 'Sustainability' is becoming a central concern for us all out of wider recognition that rising populations and economic development are threatening the degradation of the earth's resources.<br />The construction, maintenance and use of buildings impacts substantially on our environment and is currently contributing significantly to irreversible changes in the world's climate, atmosphere and ecosystem.<br />Buildings are by far the greatest producers of harmful gases such as CO2 and this 'eco-footprint' can only increase with the large population growth predicted to occur by 2050 and the industrialization of the developing world.<br />
  24. 24. How the Construction Industry can move towards Sustainable Development<br />– Energy: reducing energy consumption, being more energy efficient and using renewable energy and 'alternative technology'.<br />– Materials: Choosing, using, re-using and recycling materials during design, manufacture, construction and maintenance to reduce resource requirements.<br />– Waste: Producing less waste and recycling more.<br />– Pollution: Producing less toxicity, water, noise and spatial pollution.<br />
  25. 25. Aspects of building material adoption<br />Natural<br />Social<br />Economical<br />Political<br />Cultural<br />Historical<br />Environmental<br />
  26. 26. Environmental Amenities<br />reducing, reusing and recycling materials<br />
  27. 27. Population <br />Vegetation<br />Air Quality<br /> Climate <br />Construction<br />Transportation<br /> Watersheds <br />1/4 of world’s<br /> wood harvest<br />2/5 of world’s<br /> material & energy flows<br />1/6 of the world’s<br /> freshwater withdrawals<br />Building Industry- Facts<br />
  28. 28. Compiled from:Worldwatch Paper #124<br />
  29. 29. Working Principles<br />
  30. 30. Application of Sustainability<br />Pre-Design<br />On-Site<br />Design<br />Construction<br />O&M<br /><ul><li>Material Selection
  31. 31. Building Program
  32. 32. Project Budget
  33. 33. Team Selection
  34. 34. Partnering
  35. 35. Project Schedule
  36. 36. Laws, Codes </li></ul>& Standards<br /><ul><li>Research
  37. 37. Site Selection
  38. 38. Site Analysis </li></ul>& Assessment<br /><ul><li>Site Development</li></ul>& Layout<br /><ul><li>Watershed </li></ul>Management &<br />Conservation<br /><ul><li>Site Material </li></ul>& Equipment<br /><ul><li>Environmentally </li></ul>Conscious <br />Construction<br /><ul><li>Preservation of </li></ul>Features & <br />Vegetation<br /><ul><li>Waste Mgmt
  39. 39. IAQ Issues
  40. 40. Source Control </li></ul>Practices<br /><ul><li>Maintenance Plans
  41. 41. Indoor Quality
  42. 42. Energy Efficiency
  43. 43. Resource Efficiency
  44. 44. Renovation
  45. 45. Housekeeping &</li></ul>Custodial Practices<br /><ul><li>Passive Solar </li></ul>Design<br /><ul><li>Materials & </li></ul>Specification<br /><ul><li>Indoor Air </li></ul>Quality<br />
  46. 46. Construction Industry & Energy<br />• Consider the 'embodied' energy in every brick in every<br />structure. Every brick has used energy at every stage in its<br />production and use.<br />• Energy is consumed when:<br />– Extracting raw materials.<br />– Producing materials (Manufacturing process).<br />– Transporting materials.<br />– Transporting workforce.<br />– Building structures.<br />– Using and powering structures.<br />– Maintaining structures and demolishing structures.<br />
  47. 47. Materials<br />• Around 50% of all global resources go into the construction<br />industry, with a specific example being that 70% of all timber<br />is used for building.<br />• It is therefore very important that a sustainable approach to<br />choosing and using materials is adopted.<br />• The environmental and economic benefits of sustainability are<br />inherently linked when considering building materials, due to<br />the long-term financial advantages of recycling, using recycled<br />products and sourcing heavy materials locally.<br />• Life-Cycle Assessment, Eco-Labelling and Embodied Energy<br />Audits all of which can help choosing materials and assess the<br />balance between short-term costs and long-term<br />environmental, social and financial benefits.<br />
  48. 48. How to Choose and Use Materials in a more Sustainable way<br />• Considerations to take into account when re-evaluating the way in which materials<br />are used in construction:<br />– What reserves are left of our materials, and how can their complete<br />successive depletion be prevented?<br />– What are the pollution impacts of the manufacturing process involved with<br />creating new materials?<br />– How can existing materials be recycled (roof tiles, bricks, timber, etc.) and can<br />they be designed and used in a way more conducive to re-use?<br />– How much energy is consumed in the transport of materials? (try sourcing<br />heavy, bulky materials locally and lightweight materials globally).<br />– Can more prefabricated components be used? (reduces waste and dust on<br />site).<br />– How can more low maintenance materials be used in order to reduce further<br />energy and resource use in the future of the building?<br />
  49. 49. Thank you<br />