Tuesday, May 8, 2012

Design & construction guidelines for the warm humid climate

  1. Site Development
  • Reduce obstruction : improve airflow .
  • Covered walkway : provide rain & sun protection .
  • Vegetation & ground cover : provide shading & reduce heat gain .
  • Stormwater drainage : discharge rain water .
Reduce obstruction : improve airflow
- to allow continuos air passing through buildings
- adequate space between buildings
-Vegetation around does not block air dlow .

Covered walkway : provide rain & sun protection
- To provide sun protection
- To provide rain protection

Vegetation & ground cover : provide shading & reduce heat gain .
- Plant trees around buildings .
- Vegetations around the buildings must not block air movement .
- To provide shading for
* Outdoor activities
* Openings in building envelopes .

Stormwater drainage : discharge rain water
* Provide drainage to discharge the heavy rainfall
* this includes :
- Perimeter of buildings
- Walkways
- Pavements areas for outdoor activities
- Roads & open car parks .


Building Layout
  1. Building orientation : reduce solar heat gain .
  2. Floor plan design : allow natural ventilation
  3.  Raising of building : improve air movement .
  4. Arrangement of spaces : reduce heat  penetration & improve heat flow .
Building Layout
1. Building orientation : reduce solar heat gain

* Orientate the major axis of the building aong the east -west compass axis line .
- For early mornings & late afternoons , direct beam radiation will be incident on the east & west walls at much lower angles .
- Reduce size & nos . of openings for east & west elevations .
- Construct more openings for north & south ( front & back ) elevations of the building .

2. Floor plan design : allow natural ventilation .
- Design a single-banked ( example one room wide ) floor plan
- Layout to be open-planned ( example wioth minimal intermediate paritions ) to acheive low air resistance .
- Continuous air movement into & out of building .

3. Raising of building : improve air movement
* Air flow is better as building gets above the ground to avoid obstructions from :
- Low vegetation
- Gences

( raising the lowest floor above the ground will achieve relatively higher wind velocities for cooling

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