Bookwin Home Improvement

The characteristics of wet tropical climate

1. High rainfall

2. High Humidity

3. Hot air temperatures up to delicious

4. Wind (air flow) slightly

5. Moderate to strong solar radiation (the sun shines all year)

6. Small heat exchange due to high humidity (the air was saturated by water vapor), so the water does not easily evaporate.

In addition to these general characteristics, there are also some areas that have a slightly different climatic conditions, such as mountainous regions, such as Bandung and Malang more frequent rain, or in the area of East Nusa Tenggara’s most rare of rain, so there are many savanna or grassland and shrubs.

The problem is to keep air flowing so that evaporation can continue. For example for the region that have a wet tropical climate such as that mentioned above, thick walls and buildings made were not made of air circulation so that evaporation is not too fast.

The main strategy for building:

- Block direct solar radiation and sun shading louvers (pembayang sunlight)

- Isolation of heat radiation with the air space (on the roof and use of materials and porous or hollow celled)

- The distance a building with another building far away to expedite the flow of air

- Thermal comfort achieved with the air flow on the human body.

- Stopping / isolation radiation reflectors inappropriate because it would add to the hot environment and reduce the application of moisture and evaporation.

- The materials used should have a small BJ (mild), lag-time low, a small heat capacity, small dimension, small own weight, can follow the moisture content of the surrounding air and low thermal conductivity.

Behavior of wet tropical climate and the shape of the building:

1. High rainfall dealt with steep slope roofs

2. High humidity, mitigated by:

- The use of porous walls of the building in order to participate absorb moisture and improve indoor comfort. Dried walls of the air flow through the cracks, the surface cools the building,

- The building has two types of windows, temporal and permanent. Temporal windows used in the daytime.

3. Direct ray radiation, overcome by the use of sun shading. In order to heat the materials used does not accumulate a small heat capacity. At night, the moist air will condense and saturated, which would cause a burning sensation. Therefore, the materials used should have low time lags (quick heat, quick cool). In the daytime, high radiation, building materials must have low thermal conductivity and thermal insulation with the air flow (hot air and bring the water vapor in the surface materials), reduce the heat to buildings. Small dimensions and weight so as not to store heat. In the morning, the coldest air temperature, the building must limit the expenditure of heat from inside the building.

4. Moist air, moist soil, turning the heat radiation from the ground to make the air saturated. This situation is rectified by lifting the floor of the building to allow air to flow under the building.