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
| Oct 9, 2012
Celebrating brick in architecture
The Brick Industry Association’s 2012 Brick in Architecture Awards put the spotlight on new projects that make creative use of one of humankind’s oldest and most beloved building materials.
| Oct 5, 2012
2012 Reconstruction Award Special Recognition: Joplin Interim High School, Joplin, Mo.
At 5:41 p.m. CDT on Sunday, May 22, 2011, an EF5 tornado touched down in Joplin, Mo. In the next 31 minutes, the mile-wide, multiple-vortex tornado, with winds up to 250 mph, destroyed two thousand buildings, including Joplin High and nine other schools.
| Oct 5, 2012
2012 Reconstruction Award Bronze Winner: DPR Construction, Phoenix Regional Office, Phoenix, Ariz.
Working with A/E firm SmithGroupJJR, DPR converted a vacant 16,533-sf one-time “adult-themed boutique” in the city’s reemerging Discovery Triangle into a LEED-NC Platinum office, one that is on target to be the first net-zero commercial office building in Arizona.
| Oct 5, 2012
2012 Reconstruction Award Bronze Winner: Pomeroy Senior Apartments, Chicago, Ill.
The entire interior of the building was renovated, from the first floor lobby and common areas, to the rooftop spaces. The number of living units was reduced from 120 to 104 to allow for more space per unit and comply with current accessibility requirements.
| Oct 5, 2012
2012 Reconstruction Award Bronze Winner: Walsh Group Training and Conference Center, Chicago, Ill.
With its Building Team partners—architect Solomon Cordwell Buenz, structural engineer CS Associates, and M/E engineer McGuire Engineers—Walsh Construction, acting as its own contractor, turned the former automobile showroom and paperboard package facility into a 93,000-sf showcase of sustainable design and construction.
| Oct 5, 2012
2012 Reconstruction Award Silver Winner: 220 Water Street, Brooklyn, N.Y.
The recent rehabilitation of 220 Water Street transforms it from a vacant manufacturing facility to a 134-unit luxury apartment building in Brooklyn’s DUMBO neighborhood.
| Oct 5, 2012
2012 Reconstruction Award Silver Winner: Residences at the John Marshall, Richmond, Va.
In April 2010, the Building Team of Rule Joy Trammell + Rubio, Stanley D. Lindsey & Associates, Leppard Johnson & Associates, and Choate Interior Construction restored the 16-story, 310,537-sf building into the Residences at the John Marshall, a new mixed-use facility offering apartments, street-level retail, a catering kitchen, and two restored ballrooms.
| Oct 4, 2012
2012 Reconstruction Awards Silver Winner: Allen Theatre at PlayhouseSquare, Cleveland, Ohio
The $30 million project resulted in three new theatres in the existing 81,500-sf space and a 44,000-sf contiguous addition: the Allen Theatre, the Second Stage, and the Helen Rosenfeld Lewis Bialosky Lab Theatre.
| Oct 4, 2012
2012 Reconstruction Awards Gold Winner: Wake Forest Biotech Place, Winston-Salem, N.C.
Reconstruction centered on Building 91.1, a historic (1937) five-story former machine shop, with its distinctive façade of glass blocks, many of which were damaged. The Building Team repointed, relocated, or replaced 65,869 glass blocks.
| Oct 4, 2012
2012 Reconstruction Awards Gold Winner: Rice Fergus Miller Office & Studio, Bremerton, Wash.
Rice Fergus Miller bought a vacant and derelict Sears Auto and converted the 30,000 gsf space into the most energy-efficient commercial building in the Pacific Northwest on a construction budget of around $100/sf.
