Apartment complex to be Vancouver's largest Passive House building
The Heights, an apartment complex, which is aiming for Passive House certification, is expected to open next year. Photo courtesy of Vancouver Courier
The rental building under construction at the corner of East Hastings and Skeena Street in Vancouver, Canada, looks similar to countless others being built around the city. But one detail, noted in small print on the promotional sign, calls attention to the difference: It aims to be designated a “Passive House,” a highly energy efficient building.
It’s one of only a handful of buildings or houses in Vancouver that either have the designation or are targeting it, reports the Vancouver Courier. Once certified, the Heights — as it’s been dubbed by the developer — will be the largest building in Canada that’s met the Passive House standard.
Passive House is an international standard of energy efficiency. It focuses on reducing energy used to heat a home by creating an airtight structure, having high-quality windows and super-insulation, as well as good ventilation.
“Many passive houses are heated just with the air being provided to the suit or the building. You’d have a small heating element, smaller than the heating element in a hairdryer, for instance, that could gently heat the air because you have such low energy loss,” said Chris Higgins, a green building planner for the city of Vancouver.
“Think about a Thermos or a down coat — that’s similar to the approach a Passive House takes. It’s a super-insulated structure, it’s a super-insulated building, with very low heat loss, as opposed to traditional construction where you’re just trying to manage the heat loss [where] a large furnace [provides] the amount of heat required. In a Passive House, you don’t have that large furnace.”
Eighth Avenue Development Group, Peak Construction and Cornerstore Architecture are involved in the rental-apartment project, which is expected to be completed in June 2017.
It’s good news to Karen Tam Wu, program director of buildings and urban solutions at the Pembina Institute, a think tank dedicated to clean energy and reducing the impacts of fossil fuels.
“Basically, it’s a very tangible representation of the future of where Vancouver’s buildings, and where hopefully B.C. and Canada’s buildings, are going,” she said. “It’s important to realize that these types of buildings that are de-carbonized and low-energy — ultra-energy efficient, are the way of the future. They’re also representative of the local clean economy in action.”
Wu said, in British Columbia alone, there are more than 23,000 jobs in the green building sector and more than 10,000 green homes and buildings.
She maintains those numbers will continue to grow now that Vancouver has a zero-emissions building plan and once B.C.’s recently announced climate leadership plan is implemented. A pan-Canadian framework is also expected to be announced at the beginning of December.
In North America, the number of structures with Passive House designation has grown from 500 to 2,000 units — a quarter of that figure is accounted for in Vancouver.
Ed Kolic, president of Eighth Avenue Development Group, said the architect introduced him to the idea. Kolic said it makes for a much simpler building while meeting green building requirements. In the city of Vancouver, if you have to rezone a property, you have to meet the LEED gold standard, which has a certain number of energy points that have to be achieved. That causes the mechanical system to become very complicated.
“The Passive House method of building is the equivalent of putting a down jacket on. Put a down jacket on, you’re warm. It’s all about the envelope that goes around the building. It blocks the thermal bridging. In other words, it’s so well insulated on the outside that it doesn’t allow any heat to escape,” he said. “If you’re not allowing much heat to escape, you’re not recreating much energy to heat your building any longer. It literally drops your energy bill by 85 per cent and that’s measurable. And because we've reduced the complexity of the mechanical system, it's now just a very simple building with electric baseboard heaters, which help reduce greenhouse gas emissions."
Kolic said he’s proud to be on the leading edge of this type of construction in B.C.
“It’s just starting to get some traction in North America. So to me, we’re promoting it. I’m an advocate of it,” he said.
Topics: Architectural Firms, Building Owners and Managers, Construction Firms, Consulting - Green & Sustainable Strategies and Solutions, Engineering Firms, Multifamily / Multiunit Residential, Passive House / Passivhaus, Sustainable Communities, Urban Planning and Design