Waiting to do a massive energy retrofit project more effective than an incremental approach

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According to Passive House thought leaders, a large-scale retrofit can improve CO2 levels by 80 percent over incremental changes

July 09, 2014

When you assess the long-term impact of different levels of energy-efficiency in buildings across a 50-year span, taking an incremental approach to renovations is actually a poor strategy, according to a Passive House thought leader. A better approach is to wait several years until a proper Passive House–level building shell can be implemented. The difference between doing a Passive House renovation over standard, incremental improvements is an 80 percent difference in CO2 levels over 50 years.

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