Olive 8
   
Project Name: Olive 8
Year: 2008
Owner: Hyatt
Location: Seattle, WA, USA
Building Type: Multi-Use
Type: Extensive
System: Custom
Size: 8355 sq.ft.
Slope: 1%
Access: Inaccessible, Private
Submitted by: Greenroofs.com

Designers/Manufacturers of Record:
Developer: R.C. Hedreen Company
Project Architect: Mulvanny G2
Design Architect: Gluckman Mayner Architects
Construction Manager: JTM Construction
2008 Modular Greenroof System: Xero Flor
2009 Modular Greenroof System: GreenGrid
Landscape Architect: The Berger Partnership
Olive 8 is a $162 million condo/hotel project between Eighth Avenue and Olive Way in downtown Seattle. The Hyatt at Olive 8 will occupy the first 17 floors, while the top 22 floors will house 229 condos. The Olive 8 is the first LEED? hotel/condo building in Seattle, currently seeking Silver certification from the USGBC. The tallest hotel/condo in the city, it also boasts of the largest greenroofs at 8,355 sf. Sited on the fourth floor of the Hyatt at Olive 8, it is visible to hotel guests, condo owners, as well as to nearby building occupants. Actually, the building sprouts two extensive modular greenroof systems - the first, a 2,500 sf Xero Flor prevegetated mat system, was installed on top of the mechanical system chillers in November, 2008; and the second made up of 5,800 sf of GreenGrid modules, was installed on January 6, 2009.
The Xero Flor vegetated mats contain a sedum mix that was rolled out like sod mats and the GreenGrid systems contains "a mix of 20 different varieties of sedums in 700 planters, have been growing at T & L Nursery in Woodinville, WA," (2009, see below). The project's developer, R.C. Hedreen, is testing to see which system works better for future greenroof installation in the area.

Additional thumbnail photos:

Visit the Olive 8 website to learn more about this beautiful building, and read the following: DJC.com article of January 7, 2009 by Katie Zemtseff (PDF) "Developer?s interest in green is growing, thanks to new roof" and a Reader Blog post from seattlepi.com of January 14, 2009 by Danielle Johnson titled "Seattle Gets a New Green Roof". Learn all about Xero Flor America and GreenGrid in The Greenroof Directory.
 
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