Technical Bulletin

Comprehensive retrofit of an existing multi-unit rental building: impacts on indoor environmental conditions

Energy & Climate Multiple Climates
Christy Love RDH Building Science
Robert Lepage RDH Building Science
Eric Watters RDH Building Science
Canada Mortgage and Housing Corporation

The focus of this study is on multifamily buildings constructed in the 1960s and 1970s in Victoria, BC. The research sought to answer the following key questions: 1. What are the interior environmental conditions post-retrofit compared to industry benchmarks and the occupants’ experience before the retrofit? 2. How effectively does the ventilation strategy work post-retrofit with respect to interior environmental conditions? 3. What impacts do user characteristics and behaviour have on the effectiveness of theventilation strategy?

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