Abstract
Traditional timber houses in tropics have specific environmental characteristics that evolved considering material constraints, local construction technology and climate. To provide occupants with the necessary comfort, these naturally ventilated houses adopted several passive design strategies. Moreover, occupants have unique living patterns which may have contributed towards achieving indoor thermal comfort. However, scientific knowledge regarding these issues is still limited. Therefore, considering traditional timber houses of Bangladesh as sample cases, this study aims to investigate existing relationship between an indoor thermal environment and an occupant’s living pattern within these tropical houses. Physical measurement of thermal parameters and questionnaire surveys followed by personal observations were conducted. Findings show that indoor air temperature (AT °C) fluctuates readily with that outdoors without a timelag resulting in daytime overheating. The occupant’s daytime thermal sensation is mostly slightly warm to hot. Semi-open and outdoor shaded spaces become a way to cope with the daytime overheating period. Occupants frequently use indoor spaces during the night when thermal sensation ranges between neutral to slightly cool. Finally, from the findings an interpretational graph has been developed relating indoor thermal environment with occupant’s living pattern within a traditional timber house. Findings will contribute to professionals and policy-makers developing architectural design strategies that may impact the occupant’s well-being in future.
Highlights
Today people spend most of their life indoors while using mechanical solutions for thermal comfort making the building sector one of the major consumers of world’s total energy [1]
Heating-cooling energy consumption causes greenhouse gas (GHG) emissions resulting in climate change
Qualitative Study: Adapted Passive Design Strategies Related to Indoor Thermal Comfort
Summary
Today people spend most of their life indoors while using mechanical solutions for thermal comfort making the building sector one of the major consumers of world’s total energy [1]. Residential buildings are responsible for 27% of total energy consumption [2]. Where heating/cooling is one of the key energy-consuming sectors for providing occupants with necessary indoor thermal comfort [3]. Heating-cooling energy consumption causes greenhouse gas (GHG) emissions resulting in climate change. Studies show that traditional houses are less associated with heating-cooling energy consumption [4]. Studies on traditional houses show that an occupant’s lifestyle and adaptive behavior impact indoor thermal comfort [9,10,11,12,13]
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