عنوان مقاله [English]
Sun heat in Thailand is coming stronger every year, with record breaking temperatures. It is important to learn ability of thermal properties of house materials (insulation). Therefore three replica simple house models have been built, one model with wood and the other two with fiber cement planks for ceiling, flooring, and walling. Due to a density of wood about half of fiber cement plank, wood thickness was selected to be double of fiber cement plank. Roof of all replica models is made of non-asbestos fiber cement smart board. Under a rather calm weather during late April to early May 2017, these models were used to observe hourly temperatures inside the house during 08.00-16.00. All these three models were placed in Thammasat University Rangsit Campus (Pathumtani Province). The point to place the models was selected such that the taller building casted a shadow on all the models for 15.00 hours and after. This was to block sunlight and see how wood and fiber cement planks be able to release the heat to its surrounding. This experiment found that the model with wood, temperatures inside all the rooms were lower than that of the other two models with fiber cement planks. After under the shadow of the tall building, the model with wood room temperatures was cooled off at a slower rate compared to the other two replica models.
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