Beechwood Deep Energy Retrofit Post-World War II bungalow re-made for healthy, low-energy living By Steven Gray
This deep energy retrofit began with an uninsulated masonry bungalow located on a ravine lot with favourable solar orientation. The owners’ goals were to build an energy-efficient home with great indoor air quality and low water consumption while being respectful of their environmentally-sensitive site and integrating seamlessly with the surrounding building fabric. The resulting building, when modelled using Passive House software, has an annual heating demand of 30kwH/m2, approximately 65% less than a code-built home of equal size. Most remarkably for a retrofit project, the home achieved an air tightness level of 0.44ACH @50Pa. The main floor was completely opened up for more natural light and space flow [1]. The second storey was added for better energy efficiency and for less site disturbance [2].
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Standing seam cool metal roof
Garage deck
Natural cedar soffit Fiber cement siding
Site plan
16
ecohouse CANADA | SUMMER | 2015
South elevation