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This is an open access article under the CC BY license ().Īrticle history: Received 15 October 2016 Revised 25 February 2017 Accepted 1 March 2017 Available online xxxx on behalf of International Energy Initiative. Based on these survey findings basic improvements are being suggested. However, the results also indicate an indoor climate moderating effect of more traditional earth construction techniques.
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Furthermore, air tightness tests show that, due to poorly sealed joints between construction elements, windows and doors, many buildings have high infiltration rates, reaching up to 5 air changes per hour. The findings highlight comparably high wall U-values of 1.0 to 1.5 W/m2K for both current and historic constructions. In a one month field study 10 buildings were surveyed, looking at building air tightness, indoor climate, wall U-values and water absorption of typical wall construction materials. This paper establishes such climatological information for the capital Thimphu and presents an investigation of building physics properties of traditional and contemporary building types. Furthermore, no dedicated climate data is available for building performance assessments. Nevertheless, despite the need for space heating, thermal building performance remains largely unknown. Whilst basic architectural design elements have been retained, the construction methods have however changed over recent decades alongside expectations for indoor thermal comfort. Traditionally, buildings in the Inner Himalayan valleys of Bhutan were constructed from rammed earth in the western regions and quarry stone in the central and eastern regions. Jentsch a'*, Christoph Kulle a, Tobias Bode a, Toni Pauer a, Andrea Osburg a, Tenzin b, Karma Namgyelb, Karma Euthra b, Jamyang Dukjey b, Karma Tenzin bĪ Faculty of Civil Engineering, Bauhaus-Universität, Weimar, Germanyī Department of Engineering Services, Ministry of Works and Human Settlement, Thimphu, Bhutan Contents lists available at ScienceDirectįield study of the building physics properties of common building types in the Inner Himalayan valleys of Bhutan The findings highlight comparably high wall U-values of 1.0 to 1.5W/m²K for both current and historic constructions.
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Jentsch, Christoph Kulle, Tobias Bode, Toni Pauer, Andrea Osburg, et al.
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Abstract of research paper on Civil engineering, author of scientific article - Mark F.