With more than 250 LEED projects in the works, Enermodal Engineering is Canada's most prolific green building consulting firm. The firm is responsible for two-fifths of all LEED Canada certified buildings.
In 2007, with the firm outgrowing its home office in Kitchener, Ont., the decision was made go all out with a new green building, which it labeled A Grander View. The goal: triple Platinum for New Construction, Commercial Interiors, and Existing Buildings: O&M. Working with contractor Melloul-Blamey Construction, structural/civil engineer MTE Consulting, and designer Robertson Simmons Architects, the company last year completed the first triple LEED Platinum building in the world.
The narrow, 2,150-sm building-it stretches only 12 meters across, to allow plenty of daylight-was designed to use only 65 kWh/sm, an 80% savings over conventional buildings. The building tracked at 70 kWh/sm over the first eight months of use, most of that during a frigid winter.
The mechanical system brings outdoor air in through concrete earth tubes and tempers it, thereby decreasing energy use. In winter, heat and moisture recovered from exhaust air is transferred to the incoming air through energy recovery ventilation units; the ventilated air is then delivered to building occupants. The process is reversed in summer, so only one system is needed.
The building is heated and cooled by three roof-mounted air-source pumps; they are connected to 60 small fan coil units in a “multi-split” system that give occupants greater control of temperature and humidity in their work areas. The M/E system employs variable-flow compressors to pipe refrigerants to the pumps at very low speeds, again saving energy. Other green features include:
- 24 rooftop PV panels that provide 5.5 kW peak electricity. Enermodal took care to mount the panels on concrete pads in order to maintain the watertight roof membrane.
- A system to recapture heat pump condensate for flushing toilets; to date, the building is saving 89% on water use.
- A vegetated parking island, part of an elaborate system to treat and return cleaned-up stormwater to the municipal system.
- Innovative use of salvaged materials: stone from a demolished church for the first-floor façade, beech flooring from a demolished building, and a retaining wall from a demolished tunnel.
The firm says that total construction costs were about 10% greater than in a conventional building, but that premium will be paid back in less than 10 years through energy and water savings. The firm went out of its way to address community concerns. Enermodal purposely chose an urban infill site along the Grand River in a neighborhood that was undergoing revitalization. Working with community groups and the city, the firm extended a river trail along its property and agreed to maintain this portion of the trail. BD+C
PROJECT SUMMARY
Special Recognition
A Grander View
Kitchener, Ont.
Building Team
Submitting firm: Enermodal Engineering Ltd. (owner, LEED certification,
M/E engineering, commissioning)
Architecture consultant: Robertson Simmons Architecture
Structural/civil engineer: MTE Consulting
Contractor: Melloul-Blamey Construction, Inc.
Related Stories
| May 15, 2014
Paints, coatings, and sealants: 10 new ways to seal the deal
Color-shifting finishes, dry-erase surfaces, and stain-blocking paints are highlighted in this round up of new offerings in paints, coatings, sealants, and finishes.Â
| May 15, 2014
Biking to work up by 60 percent, according to Census Bureau report
Many U.S. cities are seeing an increase in bicycle commuters, according to new a U.S. Census Bureau report. While bicyclists still account for just 0.6% of all commuters, some of the nation's largest cities have more than doubled their rates since 2000.
| May 15, 2014
'Virtually indestructible': Utah architect applies thin-shell dome concept for safer schools
At $94 a square foot and "virtually indestructible," some school districts in Utah are opting to build concrete dome schools in lieu of traditional structures.Â
| May 15, 2014
First look: 9/11 Memorial Museum opens to first-responders, survivors, 9/11 families [slideshow]
The 110,000-sf museum is filled with monumental artifacts from the tragedy and exhibits that honor the lives of every victim of the 2001 and 1993 attacks.Â
| May 14, 2014
New study shows employees aren't happier working in green buildings
People working in buildings certified under LEED’s green building standard appear no more satisfied with their workplace environments than those in conventional buildings, according to new research from the University of California, Berkeley, and the University of Nottingham.
| May 14, 2014
Construction growth looking up: Gilbane Spring 2014 Economic Report
Construction spending for 2014 should finish 6.6% higher than in 2013, with nonresidential work contributing substantially.
| May 14, 2014
Prefab payback: Mortenson quantifies cost and schedule savings from prefabrication techniques
Value-based cost-benefit analysis of prefab approaches on the firm's 360-bed Exempla Saint Joseph Heritage Project shows significant savings for the Building Team.Â
| May 13, 2014
First look: Nadel's $1.5 billion Dalian, China, Sports Center
In addition to five major sports venues, the Dalian Sports Center includes a 30-story, 440-room, 5-star Kempinski full-service hotel and conference center and a 40,500-square-meter athletes’ training facility and office building.
| May 13, 2014
Drexel University case study report: Green Globes cheaper, faster than LEED
GBI’s Green Globes certification process is significantly less expensive to conduct and faster to complete than LEED certification, says Drexel prof.
| May 13, 2014
Steven Holl's sculptural Institute for Contemporary Art set to break ground at VCU
The facility will have two entrances—one facing the city of Richmond, Va., the other toward VCU's campus—to serve as a connection between "town and gown."
