1. T&L Nursery, Inc.
13245 Woodinville-Redmond Road, Redmond, WA 98052
Phone (425) 885-5050 Fax (425) 861-5412
www.TandLnursery.com
info@TandLNursery.com
Green Roof Resources
Industry Networks
1. Green Roof Infrastructure Industry Association
http://www.greenroofs.org/
2. Green Roof Industry Resource Portal
http://www.greenroofs.com/
3. The Washington Association of Landscape Professionals is dedicated to bringing the most timely and
useful information to consumers who are considering looking for a landscape professional to maintain or
manage a current property, renovate an existing garden or design, or install a new landscape.
http://www.walp.org/
4. The Washington State Nursery & Landscape Association is a not-for-profit statewide trade organization.
Because we are the only organization in Washington State which represents all facets of the “green
industry,” our membership includes grower and retail nurseries, landscape services (from design through
maintenance), educators, students, garden writers, and individual professionals within the industry.
http://www.wsnla.org/
http://www.seattle.gov/DPD/GreenBuilding/OurProgram/Resources/TechnicalBriefs/DPDS_009485.asp
5. City of Seattle Green Roof Information
http://www.greengridroofs.com/
On this page, you fill find information on:
What Is a Green Roof?
Seattle Incentives, Technical Guidelines and Research
Green Roof Monitoring and Evaluation
Green Roof Case Studies
Green Roof Design and Research Resources
6. T&L Grows for GreenGrid
The GreenGrid® modular green roof system is a cost competitive alternative to traditional built-in-place
green roofs. A GreenGrid® green roof is composed of a series of preplanted modules made of recycled
plastics that can easily be placed directly on a roof or other structure with sufficient structural capacity.
Green Roof Soil Suppliers
1. Locally made Cedar Grove Compost and a range of compost-based soils are available for pick up or
delivery from Cedar Grove's Maple Valley, Washington facility. Or you can buy Cedar Grove products
from an Authorized Cedar Grove dealer in bulk or in cubic foot bags throughout Washington, plus in
selected Western Oregon and Idaho locations. Custom Green Roof blends are available.
http://www.cedar-grove.com/
2. Pacific Topsoils, Inc. is your complete local source for commercial and residential landscape construction
materials, topsoil, bark, mulch, aggregate rock, and tools. We have a lightweight grower’s mix suitable for
Green Roofs or we can make custom mixes.
Page 1 of 2

2. http://www.pacifictopsoils.com/
3. Swanson Bark and Wood Products is now an authorized blender for Rooflite™ Green Roof Media.
Rooflite™ is the only FLL Certified Green Roof Growing Media available in North America with certified
test results from both American and German universities and laboratories. By meeting the stringent
standards that have been developed over the past thirty years, Rooflite™ assures the green roof plants and
vegetation will have the proper nutrients, optimum water holding capacity, and drainage characteristics to
thrive and create a sustainable environment.
http://www.swansonbark.com/
4. Experience, ongoing research, and a commitment to quality place Stream at the forefront of the supply of
both Intensive and Extensive Roof Substrates in the Pacific Northwest and Western Canada. We can
formulate a specific substrate on a project basis or refer our customers to a material that has past proven
experience. In this way cost savings can be achieved with no compromise in quality and horticultural
performance. Stream has undertaken extensive testing to determine not only the horticultural efficacy of
our Green Roof Media but also important technical characteristics such as saturated weight. Our
information is accurate and up-to-date.
http://www.streamorganics.com/
Roofing Products
1. Carlisle Syntec manufactures single-ply roofing systems and products. They have specific designs and
specifications for roof gardens covering shallow, medium, and deep constructions. Coastal Specified
Products is a distributor for their products.
www.carlisle-syntec.com
http://www.coastalspecifiedproducts.com/pacificnw.html
2. Colbond Building Products family of recycled content green roof products contribute LEED points and
have proven and predictable performance.
http://www.colbond.us/greenroof_roofgardens.htm
3. With 250 distribution centers serving North America, Mule-Hide has been one of the most trusted names
in low slope roofing since 1985. Mule-Hide offers single-ply roofing for the GreenGrid modules.
http://www.mulehide.com/product/green.aspx?Graphic=CONT
4. Conservation Technology is the North American distributor for Optigreen, world leader in the green roof
industry. We maintain an extensive stock of Optigreen Green Roof fabrics, mats, stabilizers, and paver
systems. We can also provide design assistance and technical support.
http://www.conservationtechnology.com/greenroof.html
5. For over 35 years, Sarnafil has been a leading supplier of high quality, high performance thermoplastic
roofing and waterproofing membrane systems.
http://www.sarnafilus.com//greenroofing.htm
LEED
The Leadership in Energy and Environmental Design (LEED) Green Building Rating System™
encourages and accelerates global adoption of sustainable green building and development practices
through the creation and implementation of universally understood and accepted tools and performance
criteria.
http://www.usgbc.org/DisplayPage.aspx?CMSPageID=222
USDA Zones
The 2003 U.S. National Arboretum "Web Version" of the 1990 USDA Plant Hardiness
Zone Map
http://www.usna.usda.gov/Hardzone/hzm-nw1.html
Page 2 of 2