Greenroof Project of the Week for June 24, 2013: City of Minneapolis Target Center Arena

June 28, 2013 at 1:48 pm

City of Minneapolis Target Center Arena
Minneapolis, MN, USA
113,000 sf. Greenroof

Project Description & Details

The 20,500-seat Target Center is home of the NBA’s Timberwolves, concerts and other events, and when the Target Center Arena needed a new roof, the City of Minneapolis chose to model a sustainable building and stormwater management approach by re-roofing with a green roof, the first installed on an arena in North America. Approximately 1 million gallons of stormwater are captured annually by the 2.5 acre green roof, preventing drainage into the Mississippi River.

Designed by Leo A. Daly and Kestrel Design Group, the pattern of the pavers that divide the growing zones reveal a design based on veins of a leaf from afar. The Target Center green roof consists of a state-of-the-art waterproofing membrane from Sika Sarnafil, Bonar (formerly Colbond) Enkadrain, a 2.75 inch deep growing zone in the center of the main arena roof structure and a deeper 3.5-inch growing zone around the perimeter where the structural capacity is greater to maximize the rooflite® Extensive MCL growing medium. A pre-grown Sempergreen sedum mat was supplemented with native plugs and seed to enhance plant diversity and ecological resilience and to reflect the mix of flora found in the dolomite bluffs overlooking the Mississippi and Minnesota rivers – while a few have failed, about 30 species flourish on the roof.

Year: 2009
Owner: City of Minneapolis
Location: Minneapolis, MN, USA
Building Type: Commercial
Type: Extensive
System: Custom
Size: 113,000 sq.ft.
Slope: 1%
Access: Inaccessible, Private

Designers/Manufacturers of Record:

Waterproofing Membrane & Insulation: Sika Sarnafil
Roofing Consultant: Inspec
Landscape Architect/Greenroof Designer: Kestrel Design Group, Inc.
General Contractor: Stock Roofing, a Tecta America Company
Architect: Leo Daly
Electric Field Vector Mapping (EFVM®): International Leak Detection (ILD)
Drainage & Filter Layer: Bonar (formerly Colbond)
Irrigation: KISSS
Water Retention Layer: American Engineering Fabrics
Growth Media: rooflite® Extensive MCL
Pre-Vegetated Mat Manufacturer: Sempergreen
Coverboard: DensDeck Prime Roof Board, Georgia-Pacific Gypsum

Click here to see more information about this project in The International Greenroof & Greenwall Projects Database.

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Love the Earth, Plant a Roof!

~ Linda V.

Greenroof Project of the Week for March 4, 2013: Brooklyn Botanic Garden Visitor Center

March 7, 2013 at 10:57 pm

Greenroofs.com  Project of the Week: 3/4/13

Brooklyn Botanic Garden Visitor Center
Brooklyn, NY, USA
9,690 sf. Greenroof

Brooklyn Botanic Garden Visitor Center; Photo Courtesy of New York Green Roofs

Project Description & Details

In the most significant garden renewal effort since the Garden’s founding 100 years ago, Brooklyn Botanic Garden is currently engaged in a dramatic and ambitious effort for the future. Seamlessly melding architecture and landscape, the new Brooklyn Botanic Garden Visitor Center is a model of energy-efficient design, including earth-sheltered construction, a geoexchange system for heating and cooling, fritted-glass walls, and a living roof comprised of over 10,000 plants.

Designed by Weiss/Manfredi, the Visitor Center aspires to LEED Gold certification. The slope of the roof, pitched from 4 to 27 degrees, is a prominent visual element of the site; the green roof profile and slope stabilization system was designed by Roofmeadow. The semi-intensive green roof is planted with a richly textured variety of grasses, flowering perennials and bulbs. New York Green Roofs provided the installation as well as ongoing maintenance services. The green roof is expected to harvest almost 200,000 gallons of water each year.

We thank Roofmeadow for exhibiting at The Expo Pavilion in the Greenroofs & Walls of the World™ Virtual Summit 2013!

Year: 2011
Owner: Brooklyn Botanic Garden
Location: Brooklyn, NY, USA
Building Type: Educational
Type: Semi-Intensive, Test/Research
System: Custom
Size: 9,690 sq. ft.
Slope: 21%
Access: Inaccessible, Private

Brooklyn Botanic Garden Visitor Center; Photo Courtesy of New York Green Roofs

Designers/Manufacturers of Record:

Architecture/Landscape/Urbanism: WEISS/MANFREDI
Landscape Architect: HM White Site Architects
Construction: EW Howell General Contractor
Green Roof System Provider & Designer: Roofmeadow
Waterproofing Manufacturer: Sika Sarnafil
Growing Media: Stancills
Pant Supplier: Intrinsic Perennial Gardens
Greenroof Installer & Maintenance: New York Green Roofs
Irrigation: New York Green Roofs
Post Construction Maintenance Management: Roofmeadow

Click  here  to see  more information  about this project in  The International Greenroof & Greenwall Projects Database.

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Love the Earth, Plant a Roof!

~ Linda V.

Greenroof & Greenwall Project of the Week for January 28, 2013: Hotchkiss School Biomass Treatment Facility

January 29, 2013 at 6:00 pm

Greenroofs.com Project of the Week: 1/28/13

Hotchkiss School Biomass Treatment Facility
Lakeville, CT, USA
11,500 sf. Greenroof

Hotchkiss School Biomass Facility Plant; Photo Courtesy of ZinCo USA

Project Description & Details

The Hotchkiss School is an independent boarding school; founded in 1891, it provides an education of unsurpassed quality to 598 students in grades 9 through 12, and to a small number of postgraduates. Installed in July, 2012, the green roof on the School’s newest Biomass Treatment Center is an exciting addition to an already beautiful campus. LEED Gold certified, currently it is one of only three such power plants in the country. Designed by Centerbrook Architects, the facility is part of Hotchkiss’ commitment to becoming a carbon-neutral campus by 2020.

Merging into the landscape, the Biomass Treatment Facility has a low profile and an undulating, sloped green roof. Installed by Apex Green Roofs, the sedum carpet green roof system was provided by ZinCo USA on top of a Sika Sarnafil waterproofing membrane. The Floradrain FD25-E drainage element – the proverbial “heart” of the green roof system – lies on top of the protection mat, hugging the waves of the roof, ensuring proper drainage while retaining a specific amount of water for the roof’s vegetation.

The Hotchkiss School Biomass Treatment Facility is featured in the month of September in the 2013 Greenroofs & Walls of the World™ Calendar.

Year: 2012
Owner: Hotchkiss School
Location: Lakeville, CT, USA
Building Type: Other
Type: Extensive
System: Custom
Size: 11,500 sq. ft.
Slope: 17%
Access: Private

 Hotchkiss School Biomass Facility Plant; Photo Courtesy of Apex Green Roofs

Designers/Manufacturers of Record:

Architect: Centerbrook Architects
Greenroof System: ZinCo USA Sedum Carpet System
Waterproofing Manufacturer: Sika Sarnafil
Waterproofing Membrane Contractor: Greenwood Industries
Greenroof Installation: Apex Green Roofs

Click  here  to see more information about this project in  The International Greenroof & Greenwall Projects Database.

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Love the Earth, Plant a Roof!

~ Linda V.

Greenroof Project of the Week for January 7, 2013: The Barnes Foundation

January 8, 2013 at 5:35 pm

Greenroofs.com Project of the Week: 1/7/13

The Barnes Foundation
Philadelphia, PA, USA
13,000 sf. Greenroof

Project Description & Details

The new Platinum LEED Barnes Foundation‘s 93,000 sf building designed by Tod Williams Billie Tsien Architects, conceived as a “gallery within a garden and a garden within a gallery,” is set within a four-and-a-half-acre site with landscape architecture by Olin Partnership.  The building provides significant new facilities for the Foundation’s core programs in art education, as well as for temporary exhibitions and visitor amenities.

Designed by Roofmeadow, The Barnes Foundation boasts a 13,000 sf compliance green roof intended to satisfy the Philadelphia Water Department’s stormwater management requirements.  Established with pre-grown Sedum mats by Sempergreen  which were interplanted with perennials, the simple, extensive green roof is unusual because of its ability to support flowering plants in a thin un-irrigated assembly.  Throughout the spring and summer Achillea, Talinum, Dianthus, and Phlox will provide a progression of color through the green carpet.  The green roof lies on a roof which protects a priceless and historic art collection of Dr. Albert Barnes.

The Barnes Foundation is featured in the month of March in the 2013 Greenroofs & Walls of the World™ Calendar.

Year: 2012
Owner: The Barnes Foundation
Location: Philadelphia, PA, USA
Building Type: Non-Profit
Type: Extensive
System: Single Source Provider
Size: 13,000 sq.ft.
Slope: 1%
Access: Accessible, Private

Designers/Manufacturers of Record:

Architect: Tod Williams and Billie Tsien
Landscape Architect: Olin Partnership
Green Roof Provider:  Roofmeadow
Waterproofing Manufacturer: Sika Sarnafil
Waterproofing Contractor: EDA Contractors
Green Roof Media Provider: SkyGarden
Pre-vegetated Sedum Mats: Sempergreen
Installation/Roofmeadow Network Contractor: G.R.A.S.S.

Click here to see more information about this project in The International Greenroof & Greenwall Projects Database.

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Love the Earth, Plant a Roof!

~ Linda V.