City of Charlottesville City Hall/Police Station
 Information Partner  
Photos and Graphic Courtesy Gregory Long of Capitol GreenroofsProject Name: City of Charlottesville City Hall/Police Station
Year: 2008
Owner: City of Charlottesville, Facilities Management Department
Location: Charlottesville, VA, USA
Building Type: Municipal/Government
Type: Extensive
System: Single Source Provider
Size: 9250 sq.ft.
Slope: 1%
Access: Accessible, Private
Submitted by: Gregory Long, Capitol Greenroofs

Designers/Manufacturers of Record:
Greenroof System: Carlisle SynTec Gardenroof
Greenroof Design and Project Management: Gregory Long, Capitol Greenroofs
Architect: Heyward Boyd Architects, P.C.
Photo This shows the progress of the green roof of the Police Building on 19th May, 2008. The planting is now well underway in this image. This photo was taken from the top of the car deck adjacent to the Downtown Mall; Source: www.charlottesville.orgPhotos Courtesy Gregory Long of Capitol GreenroofsThe plants have been planted and the greenroof is now complete on May 30, 2008; Photo Source: www.charlottesville.org
"The roofs of the Charlottesville City Hall and Police buildings on the Downtime Mall have been replaced with extensive green roofs. The total vegetated area is 9,250 sq ft - with a total of 18,540 plants distributed across this area. This entailed using 2,312 cubic feet of soil - enough to cover the entire green roof to a depth of 3 inches," (City of Charlottsville).



The City of Charlottesville City Hall/Police Building greenroof was installed on May 19, 2008. Plant Material used were 3" deep plugs of various sedums and succulents. A cross-section of the roofing assembly that was specified by CGR is seen at right below. An 80 mil. Sure Weld TPO membrane was adhered directly to a ceramic masonry board. The vegetated coverings consisted of a 15 oz. protection mat, a 1? drainage board, a moisture retention mat, 3? of growing media and approximately 18,000 plants.
Old City Hall roof before work began; Source: www.charlottesville.orgReplacement of the roof membrane on City Hall.  Picture taken 5/5/2008; Source: www.charlottesville.org
The plants will take a while to become fully established, but immediately the roof will help reduce storm water runoff and help to reduce cooling costs within the building for the summer months. The system was designed to absorb the first 1? of rainfall and is estimated that it will reduce HVAC costs by around 3-4% per year. An irrigation system was installed and soil moisture sensors put in place to turn the system on during drought periods.

Additional thumbnail photos:

A cross-section of the roofing assembly; Carlisle SynTec Graphic Courtesy Gregory Long of Capitol GreenroofsPhoto Source: Flickr, View of Montalto in Background Uploaded on October 3, 2008 by Piedmont Environmental Council
According to the CIty's website, you can get a view of the whole roof from the top floor of the Market Street Car Garage. The property is located at 603 East Market Street, Charlottesville, VA; visit the City's website at: www.charlottesville.org, specific project info at: http://www.charlottesville.org/Index.aspx?page=2270. Download the Capitol Greenroofs project profile here, and learn all about Capitol Greenroofs in The Greenroof Directory. For additional, questions concerning the design of this system please contact Gregory Long, the project manager, at 301.452.1144.
 
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