Greenroof Project of the Week for October 14, 2013: American Life & Accident Insurance Company

October 15, 2013 at 7:52 am Project of the Week: 10/14/13

American Life &
Accident Insurance Company

Louisville, KY, USA

16,385 sq. ft Greenroof


Project Description & Details

The iconic American Life & Accident Insurance Company building in downtown Louisville originally gained notoriety for being the last notable work of the famous German architect Ludwig Mies van der Rohe. Although the original plan called for a 2-ply modified bitumen roofing system with a white, reflective cool roof coating, the landmark site was able to increase its sustainability and prominence in the area by installing the largest privately-owned vegetative roofing system in Kentucky.

Johns Manville, Green Roof Solutions and American Roofing & Metal worked together to provide a complete green roof system for the American Life Building; a modified bitumen system, upped to 3-ply for added redundancy and protection, was selected. The vegetation used was primarily pre-vegetated Sedum mats provided by Sempergreen, with ten to twelve different species. Enlisting the assistance of Bernheim Arboretum and Research Forest, three small 12-foot-square test beds were also installed to trial various native and adaptive species to Kentucky.

Year: 2009
Owner: American Life & Accident Insurance Company
Location: Louisville, KY, USA
Building Type: Corporate
Type: Extensive, Test/Research
System: Single Source Provider
Size: 16,385 sq. ft
Slope: 1%
Access: Accessible, Private

Designers/Manufacturers of Record:

Building Architect: Ludwig Mies van der Rohe
Roofing Contractor: American Roofing & Metal
Waterproofing Membrane: Johns Manville
Greenroof Consultant & Construction Oversight: Green Roof Solutions
Pre-vegetated Mat System: Sempergreen
Greenroof System: Green Roof Solutions
Research Plots & Monthly Maintenance: Bernheim Arboretum and Research Forest
General Contractor: Turner Construction Company

Make sure to read all about the American Life & Accident Insurance Company greenroof in the October Guest Feature “Kentucky Green: Vegetative Roofing in Downtown Louisville” by Reed Hitchcock, Executive Vice-President of ARMA, the Asphalt Roofing Manufacturers Association.

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 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 January 7, 2013: The Barnes Foundation

January 8, 2013 at 5:35 pm 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.’s “This Week in Review” on GreenroofsTV: July 20, 2012

July 21, 2012 at 12:11 pm

Each week you can expect to learn What’s New here on through our “This Week in Review” video.  Here is the transcript from July 20, 2012 from our daughter, Anjuli – click on the photo below to see the video, or here.  Enjoy!

– Hello, I’m Anjuli Velázquez and welcome to “This Week in Review” for July 20th, 2012 on GreenroofsTV.

Project of the Week

–  Our project of the week is the  Nashville Music City Center built in 2012 in Nashville, Tennessee.  This Center is a 1.2 million square foot convention center just finished last month in the South of Broadway district in Nashville.  The finished roof has three independent greenroof sections on its wavy roof; and also features a 360,000 gallon water reclaim tank, which is used for things like flushing the toilets and site irrigation.  With the design of the grand ballroom portion of the roof, the Music Center Team envisioned installing solar panels.

The Center is working to achieve LEED Silver status, and a prominent feature of this will be the 175,000 square-foot greenroof, designed to flow along with the rolling hills of Tennessee.  Rooflite ® provided the growing media, Sempergreen the pre-vegetated mats, Sika Sarnafil the waterproofing membrane and the greenroof was designed by Roofmeadow.

– To learn more about the  Nashville Music City Center,  click on our project of the week photo on our homepage (or on the above photos).

What’s New

Advertiser Press Releases:

–  Introducing LiveScreen ®, the Mobile Version of LiveWall ®, the Planted Wall System Designed in Harmony with Nature.

–  Contributing Editor

– Read the latest article from our contributing editor Ralph Velasquez, “Sustainability, Friend or Foe?“

Industry News

–  ASTM Sustainability Committee develops standard for use of expanded shale, clay and slate in vegetated roofing systems.

–  NASA has released a fact sheet detailing efforts to research, use, and improve upon the concept of greenroofs.

–  Sky Gardens Blog

– Over at Sky Gardens, check out Linda’s latest post:  “’s “˜This Week in Review’ on GreenroofsTV: July 13, 2012.”

– “Upcoming Events“

–  July 27th: is the RCI Region II Meeting, in Charleston, SC.

– “In the News“

–  The Materials Handling World Magazine talks about “Leading supplier of single ply roof membranes, Sika-Trocal Helps Reduce “˜Carbon Pawprint.'”  Sika-Trocal has helped to keep stray and abandoned dogs sheltered at the Dogs Trust Rehoming Centres in Shrewsbury and Loughborough (UK).  Sika-Trocal’s single ply roof membranes have been used on these buildings to create beautifully stunning greenroofs.  Specialist roofing contractor Telclad was assigned to complete the roof installations, and developed a series of retention battens that would be strong enough to restrain the curved greenroof from slippage while meeting Sika-Trocal’s installation standards.

Delivered by main contractor McPhillips and designed by architects Peter Napier & Co., the facilities were built as environmentally sustainable as possible to help reduce the Dogs Trust’s carbon “pawprint.”  The design incorporated materials with low environmental impact including rainwater harvesting, solar panels and a greenroof, helping the building to become the first of its kind to achieve the highest BREEAM Outstanding rating in the world.

–  Business Green says, “Scientists: Green walls lead to cleaner cities.”  “Lining cities with wall[s] of vegetation could reduce air pollution by 30 per cent at less cost than current policies.”  According to a new research published in the journal of Environmental Science and Technology, plants can clean the air of nitrogen dioxide and particulate matter, which cause a huge portion of the 35,000 to 50,000 of premature deaths in the UK that are attributed to outdoor air pollution each year. The World Health Organization’s outdoor air quality database puts the figure of air quality related premature deaths at more than one million a year worldwide.

Scientists at the Universities of Birmingham and Lancaster say pollution struggles to escape “street canyons,” which makes planting green walls of grass, climbing ivy and other plants way more effective at filtering out pollutants than previously thought. Transport for London has installed green walls at Edgware Road station and at The Mermaid in Blackfriars, as part of a package of targeted short term measures introduced where particulate levels are at their highest.

– To learn more about these stories and new ones posted daily, go to our In the News or Newslinks section of our website.

– Send us your green articles, videos and images to and share your greenroof or greenwall info with the world!

– Make sure to keep up with everything by following us on Twitter, liking us on Facebook, being a member of our network on LinkedIn, and subscribing to our greenroofsTV channel on YouTube!

– This has been This Week in Review for July 20th, 2012  on GreenroofsTV.  I’m Anjuli Velázquez and I’ll see you next week!

*This week’s episode is sponsored by The Greenroof Directory, brought to you by*

Did we miss something?  We’d love to hear from you!

~ Linda V.