|
Energy audits and assessments of four high-rise residential buildings in Ontario showed that the peak space heating demand varies from 35 to 65 W/m2 of floor space. During peak winter conditions, the air leakage component contributes to the heating load by 10 to 18 W/m2 - roughly 25 to 35% of the peak heating demand. The control of air leakage has become recognized as a key element in achieving energy conservation.
The project accomplished the following:
it developed and validated the field procedures necessary to identify and assess the air leakage rate in buildings of eight storeys and higher;
it established a procedure to evaluate the various air leakage control strategies in terms of their potential cost benefits; and
it demonstrated air leakage control in two high-rise residential buildings and its resulting impact on peak power demand, energy consumption, indoor air quality, and airtightness. Two more case studies of high-rise buildings were added to show the implementation of the assessment procedure. | 