Keep Cool The House with Raised-floor Construction, Steep Roof and Long Over Hang

Climate condition is Humid Tropical Climatic which the high temperature all over the year. A house with raised-floor construction can control the room temperature to keeps cool by natural ventilation system. The raised-floor construction, make add space behind the floor. The air circulation flow and influence a house temperature to keep cool. The more advantage could be find if using wood material floor. So that, wind will acquire the sixth side of house and reduce high temperature that influence from around the village. Almost all of Architecture Traditional housing in Indonesia especially Sumatra, sulawesi, aceh, Kalimantan, Riau and Betawi use raised-floor construction. The first floor is functions especially for breeding animals, wild animal, climate condition and disaster. The construction of living space there are again two alternatives; either the beams of the raised floor are mortised through posts reaching up to the roof – H frame- or alternatively, the foundation elements do not reach above floor level and [11] carry a box frame/ construction (ex :Toraja House, Sulawesi house, aceh House). (Figure 9 ) On the other hand, traditional house roof in Indonesia also varies by form. All varies also construction by wood. Varies roof from Java are Kampong Trajumas roof, Kampung Doro gepak roof, Limasan roof and Joglo roof. Against heavy Rainfall, it has steep roof and long overhang. The high humidity will be reduces through good air circulation. Kampong Trajumas roof, have open air circulation for ventilation in front to back the house. Kampung Doro gepak roof have steep roof and open air circulation also in front to the back house, but less than trajumas. Limasan roofs, has closely roof and no open air circulation. Joglo roofs have steep roof and open air circulation from inclination of steep and sloping roof.

adpted from : Suryandar, Putri and Sajjad Mubin; MIX AND MATCH TRADITIONAL AND MODERN TECHNOLOGY, TOWARD SUSTAINABLE ARCHITECTURAL HOUSING IN THE TROPICS; Architecture Dept., Faculty of Engineering Budi Luhur University