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Sustainable Low Cost Shelter Design

Sustainable Low Cost Shelter Design. Shelter Options By Prakash M Apte Urban Development Consultant. Shelter As Living Environment. Housing cannot be viewed as mere ‘construction of shelters’

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Sustainable Low Cost Shelter Design

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  1. Sustainable Low Cost Shelter Design Shelter Options By Prakash M Apte Urban Development Consultant

  2. Shelter As Living Environment • Housing cannot be viewed as mere ‘construction of shelters’ • It is creation of an environment for the HABITAT of man which will lead to his physical, intellectual, cultural and social development’. • Imaginative configuration of shelters and other facilities that lead to the creation of the total environment for living.

  3. HOUSING CONCEPTS AND STANDARDS • Should houses be made “permanent” so that they last for a hundred years or should they be ‘temporary’? • Resources for housing are meager, should these not be invested in creation of physical infrastructure that can help and stimulate private and public saving and investment in construction of houses?

  4. Growing House • Concept of a renewable growing houses can be implemented only by efforts in an organized manner. • Programmes like provision of sites and services are of great relevance. • Hygiene, water supply, roads, parks and open spaces and recreational facilities are more appropriate indices for identifying shelter quality than its physical structure

  5. Growing House on Serviced Sites

  6. Housing Standards : • Should we be satisfied with only improving upon the existing conditions rather than fixing idealistic norms ? • The municipal bye-laws decide the housing standards. • Success or failure in solving the problem of housing will depend upon how realistically we fix standards for housing.

  7. FORM AND DENSITY OF HOUSING DEVELOPMENT: • The forms range between crowded squatter huts to individual single storey houses to multistory high rise apartments. • Densities range from 12 dwelling units per hectare in suburban developments through 600 dwelling units in squatter areas to 1200 dwelling units in the older walled city areas.

  8. High Rise Residential Development: • High-rise development favoured in urban centers with soaring land prices for economy in cost of land. • But land under residential use is at best only 50 percent of the total developed land • What weightage be given to this aspect? • High intensity of land use can be achieved by low rise high density residential development.

  9. Low Rise High Density Development

  10. Shelter Design For Low Rise High Density Development

  11. INDEX OF PLINTH AREA RATE FOR CONTRUCTION IN INDIA • Type of Construction Index(Base = 100) Increase percent • Ground floor (GF) construction 106.5 + 6.5 • GF + 1 Storey construction 100 Nil • GF + 2 Storey construction 106.5 + 6.5 • GF + 3 Storey construction 112.5 + 12.5 • GF + 4 Storey construction 121.88 + 21.8

  12. Multi Story Design Block design with central corridor & open ducts for light & cross ventilation

  13. Multistory Unit Design Dwelling units with central corridor

  14. High Density Low Rise

  15. Economy in Shelter Projects • Maximization of land use to get optimum density consistent with desirable living environment, • Building designs that are simple and functional, use indigenous building materials, are capable of expansion, are low on capital cost though higher on maintenance cost.

  16. Economy in Shelter Projects • Innovative building designs facilitating easy access to public open spaces and community facilities, and use of public open spaces for the overspill activities of the families - • Use of austere specifications, cheaper and substitute and new building materials and techniques to reduce capital cost and bring shelter within the affordability limits of low income families.

  17. Best & Worst Practices • Earlier designs with central corridor resulted in • Dark & Damp corridor • Exposed plumbing on exterior surfaces • Lack of cross ventilation • Difficulties in plumbing repair

  18. Central corridor with external plumbing

  19. Blocks with corridor on external sides • This type of design resulted in • Excesive space for corridor • Poor light for dwelling units • No cross ventilation • Corridors susceptible to heavy rains • Difficult plumbing & repairs

  20. Blocks with external corridor on both sides with back to back dwelling units

  21. Blocks with central corridor without the attending drawbacks

  22. Best Practice • Open ducts along central corridor afford • Ample light in central corridor • Cross ventilation to dwelling units & corridor • Ease of repair of plumbing • Clean exterior surface

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