Green Roofs for the Central Great Plains

Dr. Richard Sutton
Dr. Richard Sutton

Dr. Richard K. Sutton

Professor

Contact Information

Email: rsutton1@unl.edu

EcoStores - Lincoln, Nebraska

EcoStores – Lincoln, Nebraska

Green Roof Information
  • Semi-intensive to extensive, non-accessible
  • One story-Enkamat drainage layer
  • Irrigated by hand as needed
  • 6" Midwest Trading Substrate EC (Control)
  • Four other replicated plots admixtures of recycled crushed brick, crumb rubber, #10 sand, LinGro compost, biochar and bioactivators
  • EPDM membrane – Installed May 2015, 240 sf, 3/12 slope
  • Partial Species List: Hairy Grama, Blue Grama, Yellow Sundrops, Purple Prairie clover, Daisy fleabane, Sand Lovegrass, Brevior Sedge, Threadleadf Sedge, Sun Sedge, Junegrass, Thikespike Gayfeather, Tall Gayfeather, Pineleaf Penstemon, Coneflower, Littleleaf Sumac, Lemonade Sumac, Canada Goldenrod, Rigid Goldenrood, Scarlet Globemallow, Western Spiderwort
  • Ongoing research: Species trials and recycled substrate comparisons
Keim Hall Courtyard Outdoor Cabinet

Keim Hall Courtyard Outdoor Cabinet – University of Nebraska–Lincoln, Department of Agronomy and Horticulture

Green Roof Information
  • Extensive, not accessible
  • Over outdoor tool cabinet (2 x 6 construction)
  • 8" Teco-Edge OlyOla
  • 6-8" (varies) MidWest Trading Extensive Green Roof Media
  • EPDM
  • Installed June 2013, 108 SF, 16% slope
  • Partial Species List: Blue grama, Hairy grama, Sideoats grama, Little bluestem, Plains muhly, Buffalograss, Sun sedge, Purple prairie clover, Prickly Poppy, Fringed sage, Sedum album, Cowboy'd delight, Wood's rose
  • Ongoing research: Plant testing
Pioneers Park Nature Center
Pioneers Park Nature Center

Pioneers Park Nature Center – City of Lincoln Parks & Recreation Department

Green Roof Information
  • Extensive, not accessible
  • Second story over lobby
  • HydroTech Gardenroof™
  • 3-1/2" roof lite EC Extensive substrate
  • TPO Membrane
  • Installed 2007, 900 SF, 1% slope
  • Partial Species List: Blue grama, Hairy grama, Sideoats grama, Little bluestem, Plains muhly, Prairie junegrass, Sun sedge, Dwarf leadplant, My Antonia aster, Ohio spiderwort, White prairieclover, Gayfeather, Goldenrod, Fringed sage
  • Ongoing research: Annual biomass and fertility changes

More Pictures and Information

Arbor Day Foundation
Arbor Day Foundation
Arbor Day Foundation

Arbor Day Foundation – Lincoln, NE

Green Roof Information
  • Ultra-extensive, retrofit, not accessible
  • Visible from 2nd story dinning terrace of Q'doba restaurant
  • Second story over office space
  • Carlise system™
  • Irrigated by hand as needed: once per week
  • 2" litetop substrate
  • EPDM membrane
  • Installed 2010, 400 sf with in 7000 sf of sedum
  • Partial Species List: Blue grama, Hairy grama, Sideoats grama, Little bluestem, Plains muhly, Prairie junegrass, Three-awn, Purple lovegrass, Sun sedge, Fringed sage, Purple prairie clover, Gayfeather
  • Ongoing research: Seeding density and season of planting, annual biomass, and species trials

Part 1: More Pictures and Information

Part 2: More Pictures and Information

Sandhills Publishing, Inc.
Sandhills Publishing, Inc.
Sandhills Publishing, Inc.

Sandhills Publishing, Inc. – Lincoln, NE


Green Roof Information
  • Semi-intensive, accessible
  • Second story over parking garage
  • Sarnafil system™
  • Irrigated by hand as needed
  • 6" substrate special blend of ESC+ Sand + compost
  • EPDM membrane
  • Installed 2011, 2000 sf, 1% slope
  • Partial Species List: Blue grama, Hairy grama, Sideoats grama, Little bluestem, Plains muhly, Sand lovegrass, Sun sedge, Sun sedge, Fringed sage, Purple prairie clover, Gayfeather, Penstemon, Louisiana sagewort, Sandsage, Buffalograss, 'Wyo' Talinum, Rabbitbrush
  • Ongoing research: Species trials, seeding density and season of planting

Part 1: More Pictures and Information

Part 2: More Pictures and Information

Larson Building Parkhaus

Zhuqing Xu seeds plots on the Larson Buildng green roof
Zhuqing Xu, a Horticulture masters student working with Richard Sutton, seeds plots on the Larson Building green roof at Park Haus Apartments in downtown Lincoln. Xu is trying to understand how seeding different native grasses and forbs might diversify green roofs.

More Pictures and Information

Larson Building-Parkhaus – Lincoln, NE

Green Roof Information
  • Semi-intensive to extensive, accessible
  • Eighth story over parking garage
  • N-VIRE Mat 075-1-Keene Building Products
  • Irrigated as needed
  • 4"-9" Substrate ESC+ Sand + compost, Midwest Horticultural
  • Supply EPDM membrane
  • Installed 2012, 6000 sf, 1% slope
  • Partial Species List: Blue grama, Hairy grama, Sideoats grama, Little bluestem, Plains muhly, Sun sedge, Fringed sage, Purple prairie clover, Sedum kamchaticum, Sedum Stefco, Sedum album
  • News article: "Parkhaus green roof part of University of Nebraska–Lincoln professor's research," Lincoln Journal Star, 6/19/12
  • Ongoing research: Species trials, seeding method, spacing, density and season