Climate change and green buildings


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Presentation by Dr. N. Sai Bhaskar Reddy -
Sri. K. V. Subba Rao memorial lecture, one of the founders of M.V.S.R. Engineering College

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Climate change and green buildings

  1. 1. CLIMATE CHANGE & GREEN BUILDINGSUnderstanding traditional buildings<br />Dr. N. Sai Bhaskar Reddy, GEO <br /><br /><br />M.V.S.R. Engineering College<br />3 September 2010<br />
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  9. 9. Brick pieces<br />Slag<br />Quartz<br />Bone<br />Pottaryshards<br />Soil<br />Biochar /Charcoal<br />
  10. 10. Slag<br />Pottaryshards<br />Shell<br />
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  12. 12. Lime mortar<br />
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  16. 16. TRADITIONAL HOUSE<br />
  17. 17. Indian vernacular architecture<br />Is the informal, functional architecture of structures, often in rural areas, of India, <br />built of local materials and designed to meet the needs of the local people. <br />The builders of these structures are unschooled in formal architectural design and their work reflects the rich diversity of India's climate, <br />locally available building materials, and the intricate variations in local social customs and craftsmanship. <br />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 />
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  19. 19. Introduction<br />SIDE EFFECTS ARE<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 />
  20. 20. Contributing to GHGs<br />Buildings are by far the greatest producers of harmful gases such as CO2 and this 'eco-footprint' would increase with the large population growth predicted to occur by 2035 and the industrialization of the developing world.<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. Aspects of buildings<br />Political<br />Cultural<br />Historical<br />Environmental<br />Natural<br />Social<br />Economical<br />
  23. 23. 3<br />1<br />2<br />ENERGY<br />ECONOMY<br />ENVIRONMENT<br />
  24. 24. Sustainability and the Construction Industry<br /> 'Sustainability‘ a central concern - with 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 />
  25. 25. Towards Sustainable Development…<br />Energy<br />Reducing energy consumption, being more energy efficient and using renewable energy and 'alternative technology'.<br />
  26. 26. Materials<br />Choosing, using, re-using and recycling materials during design, manufacture, construction and maintenance to reduce resource requirements.<br />Towards Sustainable Development…<br />
  27. 27. Towards Sustainable Development…<br />Waste<br />Producing less waste and recycling more<br />Pollution<br />Producing less toxicity, water, noise and spatial pollution.<br />
  28. 28. 3R<br />reducing<br />reusing <br />recycling<br />Materials<br />
  29. 29. 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 Impacts<br />
  30. 30. Compiled from:Worldwatch Paper #124<br />
  31. 31. Working Principles<br />
  32. 32. Materials<br />Life-Cycle Assessment, <br />Eco-Labelling and <br />Embodied Energy Audits <br />Helpful for choosing materials and assess the balance between short-term costs and long-term environmental, social and financial benefits.<br />
  33. 33. Embodied Energy<br />‘Embodied' energy - every brick has used energy at every stage in its production and use.<br />
  34. 34. Choosing and Using Materials Sustainable way<br />Consideration while re-evaluating the way materials are used in construction:<br />Material Reserves assessment and sustainable use<br />Reducing pollution impacts in the manufacturing process of new materials<br />Recycling existing materials (roof tiles, bricks, timber, etc.) and designed for conducive re-use<br />
  35. 35. BIOCHAR / CHARCOAL<br />IN CONSTRUCTION<br />Ref:<br />
  36. 36. Choosing and Using Materials Sustainable way<br />Reducing energy in the transport of materials (try sourcing heavy, bulky materials locally and lightweight materials globally).<br />Using prefabricated components (reduces waste and dust on site).<br />Use of low maintenance materials to reduce further energy and resource use in the future<br />
  37. 37. Application of Sustainability<br />Pre-Design<br />On-Site<br />Design<br />Construction<br />O&M<br /><ul><li>Material Selection
  38. 38. Building Program
  39. 39. Project Budget
  40. 40. Team Selection
  41. 41. Partnering
  42. 42. Project Schedule
  43. 43. Laws, Codes </li></ul>& Standards<br /><ul><li>Research
  44. 44. Site Selection
  45. 45. 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
  46. 46. Source Control </li></ul>Practices<br /><ul><li>Maintenance Plans
  47. 47. Indoor Quality
  48. 48. Energy Efficiency
  49. 49. Resource Efficiency
  50. 50. Renovation
  51. 51. 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 />
  52. 52. Thank you<br />