Good Earth Plants Building #2
   
Project Name: Good Earth Plants Building #2
Year: 2007
Owner: Good Earth Plants Company, Inc.
Location: San Diego, CA, USA
Building Type: Commercial
Type: Extensive, Test/Research
System: Single Source Provider
Size: 600 sq.ft.
Slope: 1%
Access: Accessible, Private
Submitted by: Greenroofs.com

Designers/Manufacturers of Record:
Owner & Green Roof Designer: Jim Mumford, CLP, Good Earth Plants Company, Inc.
Modular Greenroof System: Tournesol Siteworks
Architect: Robert Thiele, AIA, Green Roof Project Team
Roofing Consultant: Ulf Waldmann, Green Roof Project Team
Landscape Architect: David Solmes, MLA, Green Roof Project Team
Irrigation Consultant: Bob Humphus, Greener Concepts Irrigation
Jim Mumford, CLP, President and owner of Good Earth Plant Company, Inc. oversaw the installation of the San Diego area?s first commercial greenroof at Good Earth Plants in March 2007. Located in the Kearny Mesa area, the property has three buildings which are part of the test areas. According to his website, see below, the site has the following:

Building #1 Size: 1,850 square feet, Green roof portion 1,700 sq ft. Use: Offices. Green roof type: Extensive, (built-up / integrated), and (24) modular units. Growing media will be laid directly on a soil separator and extend to from within 2? of parapet to parapet. Special features: A small platform and boardwalk on the northeast corner will allow visual observation. Plants: California and southwest native plants including, but not limited to: cacti, succulents, grasses, sun rose, desert marigold and beach primose. Soil depth: 4 ? 5?. Estimated Cost: $15-20 (including roof membrane) per square foot. Estimated weight: 12-15 pounds/sq ft, fully saturated."

Building #2 Size: 600 square feet. Green roof portion: 600 sq ft. Use: Storage. Green roof type: (75) 2? x 4? modular units, each self-contained. Plants: low growing sedums. Soil depth: 4?. Cost: $15 per square foot, installed. Weight: 15 lbs. per square foot.

Building #3 Size: 1,600 square feet. Use: Warehouse for plant storage and production, plus offices. Special features: Control building (no plants) to show the impact of green roofs on Buildings One and Two."
The site has 10 Project and Research Objectives:

"1. Conduct a performance evaluation of specific plant species for rate of establishment, environmental tolerances, plant competition, ability to exclude invasive weeds, survival and persistence.
2. Evaluate mixed plant communities and succession over time.
3. Evaluate growth media mix for drainage, water retention, compaction, organic break down, viability to chosen plant material and resistance to wind erosion.
4. Determine irrigation rates, volumes, seasonality and systems and methods.
5. Examine the pros and cons to using a built up system versus a modular system.
6. Monitor storm water run-off for volume reduction and filtration of particulates.
7. Record roof top temperature reduction in comparison to a control roof.
8. Cost analysis
9. Community outreach
10. Evaluate biodiversity."

Additional thumbnail photos:

Visit the Good Earth Plants Company, Inc. websites for more info at: http://greenroofsandiego.com and www.GoodEarthPlants.com. You can also see videos of the project here. See the project profile for the Good Earth Plants Building #1 here.
 
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