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British Columbia’s government introduced the BC Energy Step Code in 2017 to ensure homes become more energy-efficient--now and in the future. The step code includes specific efficiency targets and groups them into “steps,” representing increasing energy-efficient performance levels. “By gradually adopting one or more steps, a local government can increase the building performance requirements in its community,” according to the Step Code website.
“It’s a five-step process,” Krahn adds. “We are currently at the Step 3 stage, which is already 20 percent more energy efficient than the standard building code. It is much more difficult for a smaller building to reach a higher step code, but ModCube reached step code 3, which we are very excited about.”
The natural-gas furnace is 96 percent efficient. The natural-gas tank-less hot-water heater is 99 percent efficient. ModCube’s live green roof reduces pollutants in the air, helps moderate the heating and cooling, and attracts pollinators and birds. The argon-gas-filled windows have vinyl frames and a Low-E coating. “ModCube, as built, is 34.3 percent more efficient than Canada’s Energy Guide reference house,” says Krahn.
ModCube’s design includes nine-foot ceilings on the main floor and an open-concept first level. Custom, dimmable LED strip lighting in the living room divides this space from the rest of the open-plan living. The full-size kitchen includes quartz countertops and an island with a built-in dining table. The living area opens, via two sliding glass doors, to a private patio with porcelain pavers. The master bedroom, located on the upper level, has a rooftop deck with greenery and a cedar trellis. An ensuite bathroom serves both bedrooms.
Camille LeFevre
Camille LeFevre is an architecture and design writer based in the Twin Cities.









