Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cold comfort: A post-completion evaluation of internal temperatures and thermal comfort in 6-Homestar dwellings
https://orcid.org/0000-0002-5894-1941
Abstract A minimum internal temperature of 18 °C is recommended by the World Health Organisation to prevent the poor health outcomes that have been associated with cold and damp homes. Green building councils advise that the use of their green building rating tools will achieve this guideline and provide a warmer, drier internal environment compared to code compliant dwellings, usually through the provision of increased insulation levels from code requirements. This study monitors the internal temperatures of 29 dwellings in the autumn and winter in Auckland, New Zealand. The recorded data is used to determine the amount of time three categories of dwellings (old, new and green certified) spent below the minimum temperature threshold of 18 °C, as well as the predicted thermal comfort of the occupants. Whilst the results confirm that certified green dwellings (6-Homestar) spend the least amount of time below 18 °C, there was no statistical difference in performance between the green certified and new code compliant dwellings. Instead both categories of newer housing stock provided a significantly warmer interior environment when compared to the older housing stock. This study provides unique insights into the actual performance of certified residential green dwellings and determines that policymakers may need to consider incorporating thermal comfort metrics, in addition to minimum temperature thresholds, in standards and rating tools.
Highlights Newly built 6-Homestar certified dwellings spent 56% of the time during winter colder than 18 °C. 6-Homestar houses are predicted as being ‘too cold’ for 13% of winter – contrasted to 9% for non-certified new houses. There is no statistical significant difference in the performance of newly built code compliant and 6-Homestar dwellings. Policymakers need to reconsider the use of minimum temperature thresholds.
Cold comfort: A post-completion evaluation of internal temperatures and thermal comfort in 6-Homestar dwellings
https://orcid.org/0000-0002-5894-1941
Abstract A minimum internal temperature of 18 °C is recommended by the World Health Organisation to prevent the poor health outcomes that have been associated with cold and damp homes. Green building councils advise that the use of their green building rating tools will achieve this guideline and provide a warmer, drier internal environment compared to code compliant dwellings, usually through the provision of increased insulation levels from code requirements. This study monitors the internal temperatures of 29 dwellings in the autumn and winter in Auckland, New Zealand. The recorded data is used to determine the amount of time three categories of dwellings (old, new and green certified) spent below the minimum temperature threshold of 18 °C, as well as the predicted thermal comfort of the occupants. Whilst the results confirm that certified green dwellings (6-Homestar) spend the least amount of time below 18 °C, there was no statistical difference in performance between the green certified and new code compliant dwellings. Instead both categories of newer housing stock provided a significantly warmer interior environment when compared to the older housing stock. This study provides unique insights into the actual performance of certified residential green dwellings and determines that policymakers may need to consider incorporating thermal comfort metrics, in addition to minimum temperature thresholds, in standards and rating tools.
Highlights Newly built 6-Homestar certified dwellings spent 56% of the time during winter colder than 18 °C. 6-Homestar houses are predicted as being ‘too cold’ for 13% of winter – contrasted to 9% for non-certified new houses. There is no statistical significant difference in the performance of newly built code compliant and 6-Homestar dwellings. Policymakers need to reconsider the use of minimum temperature thresholds.
Cold comfort: A post-completion evaluation of internal temperatures and thermal comfort in 6-Homestar dwellings
https://orcid.org/0000-0002-5894-1941
Abstract A minimum internal temperature of 18 °C is recommended by the World Health Organisation to prevent the poor health outcomes that have been associated with cold and damp homes. Green building councils advise that the use of their green building rating tools will achieve this guideline and provide a warmer, drier internal environment compared to code compliant dwellings, usually through the provision of increased insulation levels from code requirements. This study monitors the internal temperatures of 29 dwellings in the autumn and winter in Auckland, New Zealand. The recorded data is used to determine the amount of time three categories of dwellings (old, new and green certified) spent below the minimum temperature threshold of 18 °C, as well as the predicted thermal comfort of the occupants. Whilst the results confirm that certified green dwellings (6-Homestar) spend the least amount of time below 18 °C, there was no statistical difference in performance between the green certified and new code compliant dwellings. Instead both categories of newer housing stock provided a significantly warmer interior environment when compared to the older housing stock. This study provides unique insights into the actual performance of certified residential green dwellings and determines that policymakers may need to consider incorporating thermal comfort metrics, in addition to minimum temperature thresholds, in standards and rating tools.
Highlights Newly built 6-Homestar certified dwellings spent 56% of the time during winter colder than 18 °C. 6-Homestar houses are predicted as being ‘too cold’ for 13% of winter – contrasted to 9% for non-certified new houses. There is no statistical significant difference in the performance of newly built code compliant and 6-Homestar dwellings. Policymakers need to reconsider the use of minimum temperature thresholds.
Cold comfort: A post-completion evaluation of internal temperatures and thermal comfort in 6-Homestar dwellings
Ade, Rochelle (Autor:in) / Rehm, Michael (Autor:in)
Building and Environment ; 167
09.10.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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