<ul><li>Tropical Building Design Guidelines </li></ul><ul><li>Windows placed in opposite walls provide for cross ventilati...
Natural Ventilation 1.1 Window Placement- indoor airflow parallel to outdoor wind conditions  3  1.2 Airflow Path- indoor ...
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Forest garden in uplands of Uva Basin, Sri Lanka  jak avocado cassava areca kitul banana tea coconut papaya
Natural forest  Forest garden
 
Alley cropping
Multilayer tree gardens Coffee, pepper-on-gliricidia, coconut. Sri Lanka
Acacia nilotica  in rice crop   providing shelter, organic matter, fodder, fuel. India
Cardomon grown under natural forest, Sri Lanka
‘ SALT’ hedgerows on for soil conservation and green manure on organic tea
Multi-species ‘chinampa’ system in Philippines
 
 
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Permaculture in the Tropics

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Permaculture projects in the tropics.

Presentacion de Proyectos de Permacultura Tropical.
Agradecimientos John Valenzuela y Living Mandala y todos los permacultores.

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  • Home gardens “ intimate, multistory combination of various trees and crops around homesteads” • woody = fruit trees predominate timber &amp; fuel, vines etc non-woody = shade tolerant crops • coincident or interpolated • protective function = soil surface protection productive function = variety of products • adapted to = all regions especially with high population densities OVERHEAD HOME GARDEN STRUCTURE SLIDE HOME GARDEN Trees in soil conservation &amp; reclamation “ trees on bunds, terraces, etc with/without grass strips” woody = MulitPurpose Tree Species &amp; fruit non-woody = common agric crops, sometimes fodder or other grasses (eg vetiver) intermittant protective function = SWC productive function = variety adapted to =sloping areas, espec highlands reclamation of degraded, acid/alkali soils, sand dunes SLIDE CASUARINAS IN SAND FIELDS IN TAMIL NADU Shelterbelts &amp; windbreaks, live hedges “ trees around farmlanmds &amp; plots” woody =combination of tall &amp; spreading types non-woody = agric crops coincident, interpolated protective function = shelter, fencing productive function = usually firewood living fences = fodder adapted to = wind-prone areas
  • Permaculture in the Tropics

    1. 41. <ul><li>Tropical Building Design Guidelines </li></ul><ul><li>Windows placed in opposite walls provide for cross ventilation, but should not </li></ul><ul><li>be directly lined up to promote mixing of the air within the room. </li></ul><ul><li>Casement windows can be used for redirection of the wind if necessary. </li></ul><ul><li>Shuttered windows allow for shade </li></ul><ul><li>Windows on the east and west walls kept at a minimum create less solar heat gain </li></ul><ul><li>Louvred windows allow for the maximum ventilation and weather protection </li></ul><ul><li>Roof space ventilation reduces heat build-up </li></ul><ul><li>A long and narrow floor plan with the long axis oriented east-west minimizes heat gain </li></ul><ul><li>Open plan living spaces with high ceilings maximize air movement </li></ul><ul><li>Walls perpendicular to the air flow should be minimized </li></ul><ul><li>Elevation of the house improves ventilation beneath </li></ul><ul><li>Extensive verandahs provide shade </li></ul><ul><li>Metal roofs with reflective coatings allow rapid cooling at night </li></ul><ul><li>Materials with high thermal capacity such as bricks, concrete, etc. should be avoided </li></ul>
    2. 42. Natural Ventilation 1.1 Window Placement- indoor airflow parallel to outdoor wind conditions 3 1.2 Airflow Path- indoor airflow traverses room in non-linear path 2 1.3 Roof Space Ventilation- airflow through roof space 2 1.4 Elevation of House- air circulation beneath house 1 1.5 Window Design- simultaneously providing ventilation and shade 3 1.6 Flow Compliance- less than 50% of square footage more than 2 rooms deep 1 Shading 2.1 Orientation on Site- long axis of building along east-west direction 3 2.2 Mnimizing Heat Gain- no windows in east and west facing walls 1 2.3 Optimal Floor Plan- around/at least 1:1.7 ratio width to length 2 2.4 Outdoor Space Shading- verandahs at least 3’ deep covering 50% of building perimeter 3 Materials 3.1 Minimal Heat Absorption- lightweight construction for walls 2 3.2 Cooling- heat conducive material for roof 2 3.3 Recycled Content- at least 25% of building materials 1
    3. 60. Forest garden in uplands of Uva Basin, Sri Lanka jak avocado cassava areca kitul banana tea coconut papaya
    4. 61. Natural forest Forest garden
    5. 63. Alley cropping
    6. 64. Multilayer tree gardens Coffee, pepper-on-gliricidia, coconut. Sri Lanka
    7. 65. Acacia nilotica in rice crop providing shelter, organic matter, fodder, fuel. India
    8. 66. Cardomon grown under natural forest, Sri Lanka
    9. 67. ‘ SALT’ hedgerows on for soil conservation and green manure on organic tea
    10. 68. Multi-species ‘chinampa’ system in Philippines

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