Social Security Administration (New Bedford, MA)

The SSA's need for additional ground floor space encompassed the surrounding lawn so a green roof was designed to mitigate stormwater runoff. The insulating value of the green roof and the building envelope, including high-efficiency glazing and calcium silicate masonry units, resulted in a zero net gain for major heating, ventilating and air conditioning equipment in spite of doubling the square footage and occupancy.

Thumbnail of 2'x4' and 2'x'2 vegetative pavers contain hearty plants in a low-profile growing medium anda the grid system allows easy installation of units and monitoring of roof conditions below.

Building Name Hastings Keith Federal Building Social Security Administration
Location New Bedford, Massachusetts
Architect Oak Point Associates
Contractor J & J Contractors, Inc.
Size 6,000 sf addition + 10,000 sf renovation
Budgeted Cost $2.4 million
Completion October 2004
Green Roof Area 4,000 sf

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