In 2014/15 the École Heritage Immersion School in St Pierre-Jolys, Manitoba, underwent a major building envelope upgrade including complete removal and replacement of the west and north exterior walls plus the courtyard area.
- As part of this work, BETAC conducted a pre-retrofit test on the building in 2013 to quantify its air leakage characteristics and to identify significant air leakage sources on the building envelope.
- Following the retrofit, a second test was performed in 2016, allowing the impact of the test to be assessed.
- The retrofit was able to reduce the measured air leakage of the building by over one-third, depending on the metric.
- The Equivalent Leakage Area (ELA10) was reduced by 34%, or 0.39 m2(4.2 ft2).
The Public Schools Finance Board has expressed interest in collaborating with BETAC to further these research activities as they apply to schools around the province.