[ OVER | STORY ] : (n) The understory over our city. ECOROOF GRANT FINAL REPORT January 2013

Grey to Green Initiative Ecoroof Incentive Program

City of Portland Bureau of Environmental Services Project Summary

Project Type: Community Engagement & Research Initiatives.

Location: Shattuck Hall Ecological Learning Plaza. School of Architecture (SW Broadway & SW College.) & Entrance of the Oregon Zoo.

Owner: Portland State University (Exhibit #1) Metro Oregon Zoo (Exhibit #2)

Design Team: Kyle Norman, Taryn Mudge, Seth Moody, Keith Nevison, Sunny Fisher, Corrie Kutkey, Jake Elliot, Matt Sedor

Sponsors SRG Partnership, Oregon Zoo, LCL Construction, KPFF Engineers, COSIE (Coalition of Students Interested in Ecodistricts.

Technologies: Sloped greenroof systems with Western native plants.

Major 8 -11” of growing medium, Polinator attactor Benefits: plantings

Constructed: Built Summer 2012, Planted Fall 2012 Project Introductions

PSU + SRG Partnership + Metro

SRG Partnership, a Portland Architecture firm, has PSU SRG been working in collaboration with Metro to develop a SHATTUCK HALL ECOLOGICAL LEARNING OREGON ZOO twenty-year master plan of the Oregon Zoo. The master PLAZA plan intent is to incorporate progressive sustainable stragies into the educational experience of the zoo. SCIENCE EXPERIENCE One of the celebrated additions of the zoo will be the Conservation Discovery Zone (CDZ), a building design Collecting Data Observing Interactions proposed by SRG Partnership. The CDZ will be located Gathering Metrics Informing the Public near the entrance of the Zoo and will house classrooms, Student Collaboration Bond Measure Awareness offices and learning laboratories. The design of the CDZ Mitigating Risks Education for future generations includes both active and passive sustainable building strategies, including a 30,000 square foot sloping green roof. SRG has a strong connection to Portland State University Department of Architecture. Historically they ESPL have supported student interns, student research and the architectural review process. PSU students are at CLR GBRL the forefront of emerging research in sustainability. The University pedagogy supports the advancement of KPFF design through specific research. This collaboration CIVIL enabled a team of PSU graduate students to engage in Oregon advanced sloped green roof analysis. Zoo PLACE

Green Roof Intentions SRG LCL The PSU Design Collaborative believes that the success PAE of public eco-roof exhibitions will inform the future development of green roofs in the city of Portland. Therefore the PSU eco-roof team has agreed to design PSU two mock-ups of the sloped green roof to explore its PSU CoLAB aesthetic, environmental and performance potential. ARCH Each mock-up has a specific intention and design criteria. The first intallation is located on PSU’s campus outside the Shattuck Hall and the second is located at the main public entrance of the Oregon Zoo. Shattuck Hall Ecological Learning Plaza Exhibit #1

The first green roof study is a design-build installation located in the Shattuck Hall Ecological Learning Plaza; a public space intended to enhance student interaction with urban ecology. The green roof design directly correlates with the slopes proposed on the CDZ. The intention is to investigate a variety of green roof substrates, drainage systems, soil depths and plant varieties to better inform the expected performance of a full scale sloped roof. This mock-up is 120 square feet and is primarily constructed of reused lumber donated from the Rebuilding Center. The installation was partially funded by COSIE (Coalition of Students Interested in Eco districts) and is fully equipped with monitoring technology. The monitoring equipment is property of the Green Building Research Laboratory (GBRL).

The ecoroof now resides on the north end of SHEL Plaza and is being monitored with flow meters and moisture sensors to analysize the water retention capabilities of three different substrate systems. A regular photo journal will allow the team to track the health of the plants and soil erosion. All of the plants selected for the roof are native to the Northwest. Many of the species can be found in the most arid ecosystems, growing under severe conditions such as exposure to hot summer sun and challenging rocky soils. Oregon’s ecosystems which support ecoroof adapted plants include: scree fields of the Columbia River Gorge and Cascades, the Great Basin desert, serpentine strata in the Siskiyous, and lithosolic plains in the Columbia Plateau. The Oregon Zoo Entrance Plaza Exhibit #2

The second green roof installation is an interpretive exhibit that is located at the entrance of the Zoo. This exhibit introduces the public to green technologies that are under further investigation within Portland State University, as well exsposes technologies being implemented in the master plan of the Oregon Zoo. Typically green roofs are out of sight and inaccessible to the public. This display will promote green roof awareness and encourage public interaction with environmentally focused building practices. The elevation and form is specifically designed to provide a visual and tactile experience for all ages. The Oregon zoo exhibit includes educational signage designed by the Oregon Zoo Interpretive team and is maintained by the horticulture staff. This installation was designed by the PSU eco-roof team, funded by local

TO donors and built by a Lease Crucher Lewis Construction. Z OO G ATE ENTRY COURTYARD

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CASCADING SEDUMS 686’

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41°29'1 N 4.33' 11 BUTTERFLY PLATEAU 684’

ENTRY COURTYARD

6" VIEWING GREEN WALL

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682’ IE 668.4710" ' 683' PVC

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SCALE : 1/8” : 1’-0” 680'

WOOD OVERHANG Overall Benefits of Green Roof Educational Exhibits

The PSU Collaborative is interested in creating a public demand for urban ecology and green building technologies. Such practices will assist in reducing the Urban Heat Island effect, help manage storm water run-off, encourage native species and pollinators and enhance human experience. The PSU Design Collaborative believes that there is tremendous value in connecting progressive University research to Portland’s youth. The two installations are complimentary and together provide many benefits. The benefits include healthy design collaboration between students, professionals and the city, promoting urban ecology amongst the children of Portland and ensuring success for the largest green roof installation in Oregon. Ecoroof Plan and Section Exhibit #1 Shatuuck hall

Perspective

9’-0”

NOR

1 2 3 TH

1 Hydratech System 41 Sq. ft.

2 Hybrid System 41 Sq. ft.

3 Terrace System 41 Sq. ft. . . . . 14’-0” T E C H G U A R D N C S O I L 4 1 Q F T Side Elevation Y 2 0 - 3 % O R G A N I P L A N T S O 2 0 - 3 % O R G A N I C S L 4 1 Q F T 2 0 - 3 % O R G A N I C S L 4 1 Q F T A M E R I C N H Y D T E R A C S Y M 4 1 Q F

BENCH Shattuck Plaza Greenroof Plan Front Elevation Ecoroof Structure Diagram NATIVE FORBES Exhibit #2 Oregon Zoo NATIVE BUTTERFLY FOOD FLOWERS

NATIVE CLIFF SEDUM AND NATIVE HERBS DWELLING PLANTS

INTERPRETIVE GRAPHICS HARDWOOD HANDRAIL FLASHING

PANEL C PANEL B

PANEL A

NATURAL FINISHED NW CEDAR SKIRT

PANEL H

PANEL F PANEL G

PANEL D

PANEL E

INTERPRETIVE GRAPHICS

GREEN ROOF EXHIBIT COMPONENT AXION

0 2 5 10 System Components

Roof Structure: Standard wood framing construction Truss Joists 12” - 14” OC 2x12 Girders APA Rated Plywood Roof Sheating (Sloped) topped with a 3/4” Denseglass decking.

Roof Protection: Membrane - 215 Mil. Hot Rubber Membrane (Hydratech mm6125) HF 30 Protection barrier.

Drainage Mat: 3/4” System Filter Garden Drain 30.

Growing Medium: 20 - 30% Organics Semi-Intensive Engineered soil.

Vegetation: 100% Western and Oregon Natives. T Including Sedums,

Drainage: Bulkhead fitting with seal filter encased in 3/4 + Gravel

Irrigation Hand Irrigation when needed for the first summer to allow the plants to establish their root structure.

Monitoring Equipment Moisture Sensors tipping bucket flow meters provided by the Portland States Green Building Research Laboratory (GBRL) GREEN ROOF CONSTRUCTION

WESTERN NATIVES SEE PLANT SPECIFICATION

COUNTERSINK STAINLESS STEEL 1.25" FLAT HEAD SCREW FLUSH WITH TOP OF RAIL.

TRIM BOARD 4.5" X .75" HARDWOOD WITH EASED EDGES, MATERIAL SPEC: MAPLE OR WHITE OAK. FINISH WITH LINSEED OIL. STABILITY FIRRING STRIP FOR HAND RAIL RUBBER 215 ML HOT RUBBER ROOFING MEMBRANE (HYDRATECH MM6125) HF 30 PROTECTION BARRIER GREEN ROOF DRAINAGE LAYER AND ROOT MEMBRANE 8.00 min.

PT 2 X 8 FASTENED THROUGH PLYWOOD SHEATING AND 2 X 2 FROM UNDERSIDE OF FACIA

NATURAL CEDAR 2 X 12 NO FINISH OR LINSEED OIL FINISH ON EXTERIOR. NO PAINT.

FASTEN WITH STAINLESS STEEL FASTENERS 24 INCH O.C.

3" LAG OR COROSION RESISTANT FASTERNERS. SPACING 24", 4" FROM BOTTOM AND 2" FROM TOP OF NATURALCEDAR FACE BOARD

2 X 2 FIRRING STRIP 3/4" OR 1/2" DENS DECKING

3/4" OR 1/2" PLYWOOD FOR SHEAR

2 X 12 NATURAL CEDAR NO PAINTING, LEAVE NATURAL FOR WEATHERED TIMELESS FINISH

CEDAR TRIM SKIRT

* NOTE: ATTACH FINISH RAIL OR CAP AFTER MEMBRANE IS FULLY INSTALLED.

GREEN ROOF EXHIBIT BUILD UP EDGE DETAIL

DRAWING N.T.S. CONSTRUCTION PHOTOS Shattuck Hall Ecological Learning Plaza The Oregon Zoo Entrance Plaza Exhibit #1 Exhibit #2 GREEN ROOF PLANT LIST

Grasses

Festuca californica- ”California fescue Poaceae” Drought-tolerant, native perennial. Good pollinator species with paperlike blooms that last for a long Drought-tolerant grass found up to the central Willamette Valley. Beautiful bluish-silver sharp duration. texture. A top architectural, ornamental plant presently under utilized. Asclepias speciosa- Showy milkweed Apocynaceae Festuca idahoensis- “Idaho fescue Poaceae” Beautiful, drought-tolerant, native forb species Very Drought-tolerant, native grass found in with fantastic pollinator attraction capabilities. craggy mountain outcroppings and up to sub- The primary food source for larval stage Monarch alpine meadows. butterflies.

Festuca idahoensis ssp. roemeri- “Roemer’s Collinsia grandiflora- Giant blue-eyed Mary fescue Poaceae” Plantaginaceae Native Willamette Valley meadow grass species. Ornamental, adaptable wildflower species can Nice green ornamental handle a range of ecosystem types. Suitable ball. selection for eco roofs

Danthonia californica CA Oatgrass Poaceae Dichelostemma congestum (Brodiaea Ornamental, drought-tolerant native bunchgrass. congesta)- Ookow/Harvest Lily Asparagaceae Excellent forage plant Harvest Lily was a very important foodstuff of for livestock. Native peoples throughout the West. It is a drought- tolerant wildflower species that traditionally grows Perennials on hillsides over much of Oregon’s Coast Range.

Achillea millefolium- Common yarrow Eriophyllum lanatum- Oregon Sunshine/Wooly Asteraceae sunflower Asteraceae Very drought-tolerant native perennial. Good Drought-tolerant native wildflower that forms a pollinator species with medicinal properties. A branched clump. great hardy plant all around.

Anaphilus margaritacea- Pearly everlasting Asteraceae Ornamental Rosaceae Madia elegans- ”Common Madia/Tarweed Native, drought-tolerant forb species. Has been Asteraceae” used successfully on PSU Drought-tolerant plant, member of the daisy BHB un-irrigated eco-roof. family. Can be found growing in disturbed sites, which warrants its selection as an ecoroof species. Prunella vulgaris var. lanceolata- Self-heal Fruits (achenes) historically eaten by indigenous Lamiaceae populations Edible, medicinal, drought-tolerant species. Grows in a range of ecosystem types including granitic/ Sidalcea malviflora ssp. virgata- “Dwarf basaltic soils. Checkermallow Malvaceae” Thermopsis gracilis- Slender goldenbanner A spring-blooming meadow flower. Important Fabaceae nectar and larval food source for the West Coast Open forest mountain species. Nitrogen-fixer. Srvives Lady, Painted Lady, Common Checkered Skipper, and thrives in hellstrip (median) gardens. and the Gray Hairstreak butterflies. Good plant for preservation Zauschneria (Epilobium) canum- California fuchsia Onagraceae Symphyotrichum hallii- “Hall’s Aster Fantastic, drought-tolerant hummingbird magnet. Asteraceae” Reddish-orange blooms in late summer to fall. A Dapper, drought-tolerant, native wildflower must for exposed ecoroof sites. species. Very droughttolerant has survived on unirrigated eco-roofs at Portland State University. Sedums- (Sedum section) Penstemon sp.- Penstemon Plantaginaceae Many species are drought-tolerant and would Sedum divergens- Cascade stonecrop make good candidates for eco-roofs. Some more Crassulaceae local (Gorge) species: rupicola, Common lava bed denizen. Was historically eaten davidsonii, fruticosus, cusickii, barrettiae, by some native populations (particularily the cardwellii, euglaucus, ovatus, Nisga’a of British Columbia). Wonderful, long richardsonii, serrulatus lasting in bloom pollinator species. Sprightly green growth. Potentilla gracilis- Slender cinquefoil Sedum oreganum- Oregon stonecrop Crassulaceae Our most common Sedum to NW Oregon. Cliff dweller in the Columbia River Gorge. Pollinator species

Sedum spathulifolium- Broadleaved stonecrop Crassulaceae Our other common Sedum species. Cliff dweller, good pollinator species

Sedum spathulifolium- ‘Cape Blanco’ Crassulaceae Gray whitish form of the spoon- leafed Sedum. Good cultivar selection

Sedum spathulifolium- ‘Carnea’ Crassulaceae Grayish leaves, burgundy stems in this cultivar selection

Sedum oregonense- Creamy flowered stonecrop Crassulaceae Native mostly to So. Oregon, this Sedum is drough-tolerant and often found talus slopes and rock ledges, but can also be found along riparian cliffs. There is a cultivar selection available from Xera Plants, Inc taken from the McKenzie River.