10:40 am - 12:00 pm | Room: Sinatra | Session Chair: Helen Stopps

MURBs

Analysis Of Summertime Overheating In Multi-Unit Residential Buildings

Overheating in buildings arising from extreme heat events (EHEs) has been identified as a health concern to vulnerable occupants.  Epidemiological studies found the mortality data during EHEs are higher than any other natural hazard.  However, most mortality data are not associated with the indoor conditions under which people spend most of their time. This paper analyses the results of field monitoring in apartment buildings retrofitted to reduce energy use and overheating risk during summertime heat waves.  The outdoor and indoor conditions were collected over three years: prior, during and after retrofit. The results showed the indoor temperatures increased with the outdoor conditions in unconditioned suites not facing north.  In those suites, the indoor temperatures ranged from 27 to 34°C, and were higher than the adaptive thermal comfort and outdoor temperatures during the heat wave periods.  The occupants were exposed to medium to high levels of heat stress, particularly during nighttime.

 

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Abdelaziz Laouadi, National Research Council Canada

 

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