Living Carpet of Texture & Color: Eco-Roof, Portland Central Library

Eco-Roof  - Multnomah County Central Library, Portland, Oregon

A high point of my Portland foray: Touring the Central Library's new Eco-Roof with John Cabrera, Facilities Supervisor.     Photos Copyright © Alice Joyce

Completed in September, 2008, the structure utilizes 24" x 24" pallets, which added to the ease of installation. The 4" deep soil blends organic and inorganic materials, mixed with Zebra, a water-retentive product made from natural cornstarch.

Multnomah County Library Eco-Roof - 801 S.W. 10th Avenue - Portland, Oregon

Photos and text: All Right Reserved © Alice Joyce

UNDER CONSTRUCTION

The benefits of the roof are numerous. Plantings help to capture the majority of stormwater runoff, cut down on the cost of electricity for heating and cooling, and absorb UV rays.

The roof features some 17,000 plants; drought-tolerant sedums and grasses that create a wildlife habitat, and reduce air pollution. An eco-roof is believed to filter the air, actually removing airborne particles, as it absorbs carbon dioxide.

A look at the photos reveals the roof's aesthetic element: A rich textural carpet knit of an abstract pattern that changes with the seasons.

The summer scene pictured: One of peachy pink tones melded with brick red and mahogany hues alongside pale blue-grey & shades of green, with yellow blooms and feathery inflorescences!

Information about tours of Portland's Central Library Eco-Roof :

http://www.multcolib.org/events/ecoroof.html

Click on links for more about the Portland Area:

http://bayareatendrils.blogspot.com/2009/07/exquisite-rush-of-cascading-water-ira.html

http://bayareatendrils.blogspot.com/2009/07/art-in-garden-with-purpose.html