Impacts of the Courtyard with Glazed Roof on House Winter Thermal Conditions

Authors: Bin Su

Abstract:

The 'wind-rain' house has a courtyard with glazed roof, which allows more direct sunlight to come into indoor spaces during the winter. The glazed roof can be partially opened or closed and automatically controlled to provide natural ventilation in order to adjust for indoor thermal conditions and the roof area can be shaded by reflective insulation materials during the summer. Two field studies for evaluating indoor thermal conditions of the two 'windrain' houses have been carried out by author in 2009 and 2010. Indoor and outdoor air temperature and relative humidity adjacent to floor and ceiling of the two sample houses were continuously tested at 15-minute intervals, 24 hours a day during the winter months. Based on field study data, this study investigates relationships between building design and indoor thermal condition of the 'windrain' house to improve the future house design for building thermal comfort and energy efficiency

Keywords: Courtyard, house design, indoor thermal comfort, 'wind-rain' house

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1082341

References:

[1] B. Su, "Prevention of winter mould growth in housing," Architectural Science Review, vol. 49, no. 4, pp. 385-390, Dec. 2006.
[2] B. Su, "Building passive design and housing energy efficiency," Architectural Science Review, vol. 51, no. 3, pp. 277-286, Sep. 2008.
[3] B. Su, (2010) "A field study of the ÔÇÿwind-rain- house," in Proceedings of Future Intermediate Sustainable Cities -First International Conference on Sustainability and the Future, Cairo, 2010, pp. 324-334.
[4] WHO, "Air quality guidelines for Europe 2000 - Second Edition WHO Regional Publications", European Series, N91, 2000.
[5] J. Sateru, "Finnish Society of Indoor Air Quality and Climate (2004) Performance Criteria of Buildings for Health and Comfort", CIB Task Group TG42, published by CIB secretariat, No 292
[6] DBH, "Compliance Document for New Zealand Building Code - Clause G5 Interior Environment," Wellington, New Zealand: Department of Building and Housing, 2001.
[7] SANZ, "New Zealand Standard 4303-1990 Ventilation for Acceptable Indoor Air Quality," Wellington, New Zealand: Standards Association of New Zealand, 1990.
[8] R. Jaques and J. Burgess, "Solar Wall Collectors - Results of a Field Trial in Three Schools and a House, BRANZ Study Report 231," Judgeford, New Zealand: BRANZ Ltd, 2010.
[9] SNZ, "New Zealand Standard 4218-2004: Energy Efficiency - Small building envelope," Wellington, New Zealand: Standards New Zealand, 2004.