Tag Archives: green roofs

Here’s a tool to help green roofs grow

The following post is by Oregon BEST:

A unique modeling tool developed at Portland State University with support from Oregon BEST is helping local green roof manufacturer Columbia Green Technologies speed adoption of green roofs to meet legislation aimed at reducing combined sewer overflows during heavy rains and thereby grow the Portland based start-up’s national market share.

The new tool is the result of a research project funded by Oregon BEST and led by Graig Spolek, a PSU professor and director of the Green Roof Design and Test Lab. Columbia Green uses the tool when working with civil engineers and architects who need accurate, quantitative data about how much stormwater a green roof in a specific geographical location will both retain and detain.

A green roof sits atop the new Apple store in downtown Portland.

“This new tool has been very helpful; it’s helped us open doors to some of the best engineering and architecture firms in the country,” said Elaine Kearney, Technical Director at Columbia Green. “Being able to generate this kind of data bolsters our reputation as being innovative and technologically very forward looking.”

Eric Zickler, an associate principal at Aecom, one of largest engineering firms in the world, said his firm uses many different tools to measure performance of their stormwater management infrastructure designs, but the Columbia Green tool stands out.

“Generally the calculators and modeling modules are generic and do not provide a high level of confidence in predicted performance,” Zickler said. “The green roof stormwater management tool developed by Columbia Green is specific to green roofs and developed using both theory and empirical data for multiple geographies across varying storm intensities, making it a valuable resource in building our confidence in the stormwater management benefits of green roofs.”

The new tool, which can generate data specific to geographic areas and weather patterns, gives Columbia Green a competitive advantage when the company interacts with potential clients.

“The ability to quantify our performance with this degree of accuracy is unique, so it’s a significant advantage for us,” said Robin Schneider, marketing director at Columbia Green.

This strategic funding exemplifies how Oregon BEST, a state-funded organization that fosters technology-based economic development, helps clean-technology companies collaborate with universities to advance and commercialize products to grow Oregon’s green economy.

“It’s been very rewarding to see Columbia Green leverage our investment in research and transform that into expanded distribution and sales opportunities,” said David Kenney, president and executive director of Oregon BEST.

Green roofs and other green infrastructure approaches are gaining visibility at all levels of government, both in the United States and abroad, as officials try to implement policies to address aging public infrastructure.

Two years ago, Vanessa Keitges, CEO of Columbia Green, was selected to sit on the President’s Export Council at the White House.

“We greatly appreciate the Oregon BEST support that allowed us to take advantage of the PSU rain lab and develop a tool that’s helping us succeed,” Keitges said. “Local cooperation between industries and academia is recognized as a model for innovation to solve global problems.”

Oregon BEST is a state agency that nurtures clean technology innovation by transforming new ideas, research, and products into green-collar jobs, greater sustainability, and economic prosperity for Oregon.


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A rooftop P-patch grows in Columbia City

The following post is by DJC staff:

Harbor Urban says people are starting to move into the GreenHouse Apartments at 3701 S. Hudson St. in Columbia City. The LEED gold project has one notable feature: irrigated garden plots for each resident on the roof.

Harbor calls it “roof-to-fork urban agriculture.”

There’s also a greenhouse on the roof and a communal space for dining, as well as edible trees and shrubs scattered throughout the property. The rooftop plants absorb rainwater and reduce runoff, and the soil and vegetation help insulate the buildings.

Photo courtesy of Harbor Urban

Rooftop gardens and greenhouse at Columbia City's GreenHouse Apartments.

The site is near the Columbia City light rail station and the farmers’ market.

Harbor said half of the units were leased before the building officially opened.

Harbor Urban, LLC is the developer, Exxel Pacific built it and Runberg Architecture Group was the architect. The landscape architect was Hewitt and the structural engineer was CPL. LEED consultant was O’Brien & Co.

Martha Barkman, director of design and construction for Harbor Urban, said, “We spent a lot of time early in the entitlement stages to make sure it was something that would be accepted by and truly fit into the existing community, which is a unique treasure.”

Harbor said GreenHouse is the first new market-rate apartments in Columbia City since 1969.

GreenHouse has 124 units, 20 percent of which are designated affordable under Seattle’s Multi-family Tax Exemption program.

This post has been updated since it was first published to name additional project team members.

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