Manulife Financial U.S. Headquarters (601 Congress Street)
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Project Name: Manulife Financial U.S. Headquarters (601 Congress Street)
Year: 2004
Owner: Manulife Financial
Location: Boston, MA, USA
Building Type: Commercial
Type: Intensive
System: Single Source Provider
Size: 11000 sq.ft.
Slope: 1%
Access: Accessible, Private
Submitted by: Ed Snodgrass

Designers/Manufacturers of Record:
Plant Supplier: Green Roof Plants
Architect: Skidmore, Owings & Merrill, LLP
Landscape Architect: Sasaki Boston
Greenroof System: American Hydrotech
Hydrotech Applicators: Titan Roofing, NER Construction, Valley Crest Landscaping
The American Hydrotech project profile (see below) says, "The 14-story Manulife Building houses the U.S. operations of Canada's largest life insurance company. Designed by Skidmore, Owings & Merrill, LLP (SOM) and completed in 2004, the 470,000 square foot building has added a contemporary profile to South Boston's emerging Seaport District and visibly promotes excellence in sustainable design. The building is stepped at the 12th floor, leaving an open roof area with direct access from adjacent offices and visibility from the floors above. On that 12th floor space, SOM and landscape architect Sasaki Boston have created a beautiful 11,000 square foot garden roof that not only provides a valuable amenity for Manulife employees, it also helps to reduce heating and cooling costs; provides acoustic insulation; greatly extends the roof's life expectancy; reduces the urban "heat island effect;" and provides an effective filtering and retention system for stormwater.

601 Congress Street is the winner of the 2006 Green Roofs for Healthy Cities Award of Excellence in the Intensive Industrial/Commercial Category.
Using drought tolerant ornamental grasses and perennials of varying heights planted in the roof garden's 6" - 14" deep soil media, Sasaki has created a landscape pattern of colors and textures designed to give the appearance of "wind-blown drifts set directly against a cloud-scattered sky." SOM specified Hydrotech's Garden Roof? Assembly, consisting of MM6125?-EV fabric-reinforced, hot fluidapplied, rubberized asphalt waterproof membrane integrated with LiteTop?engineered soil and precast concrete pavers. Hydrotech's unique ability to provide a waterproofing and hardscape/softscape solution, all with a single source warranty, allowed project designers to successfully transform the Manulife Building roof into a self-sustaining landscaped ecosystem that requires minimal maintenance."

Additional thumbnail photos:

See the Project Spotlight from the American Hydrotech website here, and learn more about American Hydrotech in The Greenroof Directory here.
 
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