J.L. McMillan Federal Building/ Courthouse
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The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.Project Name: J.L. McMillan Federal Building/ Courthouse
Year: 2011
Owner: General Services Administration (GSA)
Location: Florence, SC, USA
Building Type: Municipal/Government
Type: Extensive
System: Single Source Provider
Size: 28500 sq.ft.
Slope: 1%
Access: Accessible, Private
Submitted by: Living Roofs Inc.

Designers/Manufacturers of Record:
Architect: ALR Architecture, PC
Roofing Contractor: Keating Roofing & Sheet Metal, Inc.
Greenroof Design & Installation: Living Roofs, Inc.
Growing Media Supplier: Carolina Stalite Company
Plant Supplier: Emory Knoll Farms / Green Roof Plants
The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.Aerial view of the J.L. McMillan Federal Building/ Courthouse pre-greenroof; Photo Source: GSAThe J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.
The roof at the McMillan Federal Courthouse and Post Office will join the rankings of one of the largest green roofs in the Southeast U.S. to date, and may be the largest in South Carolina. This project was part of the Federal Recovery Act "Roof Replacement with Improvements for Energy and Environmental Conservation".
The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.
An extensive green roof system was selected due to the load constraints of the existing structure. It is a traditional built-up system planted with a diverse list of plant material inclusing species of Sedums, Delosperma, Talinum, and Allium. Roughly 51,000 plugs were planted in 329 tons of lightweight growing medium. Growing medium depth is 4 inches. A perimeter irrigation system was installed to help the plants during the establishment period. Florence, SC is a challenging environment with summer temperatures averaging in the mid-90's (Fahrenheit), and sometimes having long periods with no rain.

Additional thumbnail photos:

The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.The J.L. McMillan Federal Building/ Courthouse greenroof; Photo Courtesy of Living Roofs, Inc.
Learn about the General Services Administration's commitment to Sustainable Design. Read about the following companies in The Greenroof & Greenwall Directory: Living Roofs, Inc.; Emory Knoll Farms; and Carolina Stalite Company.
 
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