Green roofs are “contained” green space on top of buildings or structures. These green spaces can be below, at, or above grade and in all cases include vegetation that is not planted in the “ground.” Green roofs require a high quality water proofing and root repellant system, a drainage system, filter cloth, a lightweight growing medium, and plants. Green roof systems may be modular, prepared in movable, interlocking grids, or each component of the system may be installed separately.
Green roofs can reduce a building’s peak and total energy demand and utility costs. By absorbing and storing heat, green roofs help buildings maintain a steady temperature, which reduces cooling needs in hot weather and heating needs in cool weather. Green roofs also reduce cooling costs by reducing the temperature of the roof surface and the ambient air.
Challenge Participants Currently Adopting This Practice
- Boston Properties, Inc.
- CB Richard Ellis
- Federal Reserve
- Friends of Post Office Square
- John Hancock
- Seaport Hotel
Financing Options, Incentives, And Rebates
Examples of Green Roofs in the Boston Area
City Hall Boston: Green Roof Demonstration Project | Harvard Graduate Student Housing | MGH Center for Outpatient Care | Genzyme | WGBH Boston | IKEA | Simmons College | Cambridge Center Kendall Square | more examples
A Small Sample of Some Green Roof Installation Services in Boston
- Top Sprouts – partners with building owners to build rooftop food gardens and greenhouses
- Green City Growers – raised bed gardens builder
- Apex Green Roofs
- Roofscapes, Inc. – Earth Our Only Home, Inc.
- Zinco Green Roof Systems
- Recover Green Roofs
- Massachusetts DEP: Green Roofs and Storm Water Management
- U.S. EPA: “Green Roofs Compendium“
- Metropolitan Area Planning Council (MAPC): Low Impact Development Fact Sheet
- Greenroofs.com “The Greenroof Industry Resource Portal”
- American Society of Landscape Architects: Chicago City Hall
- LID: Green Roof Fact Sheet
- Green Roof vs White Roof
In The News
- “Boston rooftop farm Higher Ground aiming even higher” Metro Boston, April 2014
- “Chicago’s Battle of the Roofs: Green vs. White” Governing.com, December 2012
- “WPI Shows off its Green Campus” WBJournal.com, April 2011