The Dufferin Residence will be a Certified Passive House addition and EnerPHit retrofit to a heritage listed building, compounding the challenges for this project. Keeping with the look of the neighbourhood, approval from the city finally allowed the project to break ground at the end of 2014. Pushing the envelope further, 21” R-67 ICF walls were chosen, with the hope of comparing construction costs of similar R-value wood construction walls. The “penthouse”/rooftop access will be composed of prefabricated, pre-insulated panels.
| STANDARD | Passive House | |
| LOCATION | Ottawa, ON | |
| TYPE | Attached Single Family | |
| YEAR COMPLETED | 2015 | |
| PROJECT TEAM | ||
| PH CONSULTANT | Stephen Magneron (Homesol Building Solutions) smagneron@homesol.ca |
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| DESIGNER | Chris Straka (Vert Design) chris@vertdesign.ca |
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| BUILDER | Casey Grey (Cornelis Grey Construction) casey@cgreyconstruction.com |
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| LIVING AREA | 1,905 ft² | |
| HEAT DEMAND | 14.27 kWH/(m².a) | |
| HEATING LOAD | 8,500 BTU/hr | |
| COOLING DEMAND | 3.0 kWh/(m².a) | |
| PRIMARY ENERGY | 101 kWh/(m².a) | |
| AIR TIGHTNESS | Under construction | |
| VOLUME | 17,410 ft³ | |
| SLAB | Concrete/EPS | R-49 |
| ABOVE GRADE WALLS | ICF | R-67 |
| BELOW GRADE WALLS | Concrete/XPS/Roxul | R-65 |
| CEILING | Wood truss/SPF/Cellulose | R-81 |
| VENTILATION | Zehnder | Eff. 92% |
| WINDOWS | Kleawall | SHGC = 0.61 Ug = 0.60 W/(m²K) |
| HEATING/COOLING | Mitsubishi Mr Slim – 3 indoor heads | |
| HOT WATER | TBD | |
| RENEWABLES | TBD | |