wood products and green building: rating systems recognizing wood’s environmental benefits
DESCRIPTION
With growing pressure to reduce the carbon footprint of the built environment, building designers are increasingly being called upon to balance functionality and cost objectives with reduced environmental impact. Wood can help to achieve that balance. This presentation reviews how wood contributes to credits under the various green building rating systems, In addition, it reviews the importance of life cycle assessment and how it can be used when evaluating the environmental performance of buildings at the design stage. Earn 1.00 HSW credit and 1 GBCI CE hour for LEED Credential Maintenance, visit: http://owl.li/yp66XTRANSCRIPT
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Wood Products and Green Building
Rating systems increasingly recognize wood’s environmental advantages
Earn 1 AIA/CES HSW learning unit and 1 GBCI hour for LEED Credential Maintenance
CEU Publish Date: June 2014
Phot
o by
Dav
id W
akel
y
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AIA Provider Number: K029 GBCI Provider: McGraw-Hill PublishersAIA Course number: K1406C GBCI Course number: #910000367AIA Credit: 1 HSW/SD hour GBCI Credit: 1 GBCI CMP hour
Best Practices
reThink Wood® sponsors this Continuing Education Unit provided by McGraw-Hill Publishers. This course is registered with AIA CES for continuing professional education.
As such, it does not contain content that may be deeded or construed to be an approval or endorsement by the AIA of any material or method of construction, or any manner of handling, using, distributing, or dealing in any material or product.
Credit earned on completion of this course will be reported to AIA CES for AIA members. Certificates of completion are available for self-reporting and record-keeping needs.
Questions related to the information presented should be directed to reThink Wood® upon completing this program.
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Copyright Materials
This presentation is protected by U.S. and international copyright laws. Reproduction, distribution, display and use of the presentation without written permission from reThink Wood® is prohibited.
© 2014, reThink Wood®, www.rethinkwood.com
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Learning Objectives
Discuss the sustainable aspects of wood products. Describe how wood contributes to credits under various green building
rating systems. Articulate the importance of life cycle assessment and how it can be
used to evaluate the environmental performance of buildings at the design stage.
Describe how green building certification, sustainable forest certification, and Environmental Product Declarations complement each other to provide a more complete picture of a building’s environmental performance.
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Table of Contents
Section 3
LCA: Getting to a Material’s Real Green Quotient
Section 4
Wood and Carbon
Section 5
New Materials Create New Possibilities
Section 6
What the Future Holds
Section 1
Green Rating Systems, Codes and Wood
Section 2
New Developments in Green Building Rating System & Codes
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GREEN RATING SYSTEMS, CODES AND WOODSECTION 1
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LEED PlatinumBranson Commons – Ross, CaliforniaArchitect: Turnbull Griffin Haesloop ArchitectsWoodWorks Institutional Wood Design Award, 2011
Photo by David Wakely
Approaches to Rating Green Buildings
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Wood and Green Building Rating Systems
Prescriptive-based rating systems generally recognize wood or wood products in the following areas: Certified wood Recycled / reused / salvaged
materials Local sourcing of materials Materials efficiency Indoor air quality
LEED GoldHerrington Recovery CenterOconomowoc, WisconsinArchitect: TWP Architecture WoodWorks Green Building with Wood Award, 2010
Photo: Curtis Waltz
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Green Building to Code
Provisions of voluntary rating systems are beginning to find their way into building codes.
CALGreen provisions and model code language within ASHRAE and IgCC are similar to those in voluntary green building rating systems.
None require comprehensive environmental certification of rapidly renewable materials or of any other construction material other than wood.
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Sustainable Forest Certification
Verifies that a forest meets the requirements of the certification standard
Two international umbrella organizations – FSC and PEFC
More than 50 certification standards worldwide
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NEW DEVELOPMENTS IN GREEN BUILDING RATING SYSTEM & CODES
SECTION 2
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LEED v.4
LEED GoldPromega Feynman CenterThe Crossroads – Madison, WisconsinArchitect: Uihlein-Wilson Architects, Inc.WoodWorks Innovative Engineering Wood Design Award, 2013
Photo by Aitor Sanchez/EwingCole
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LEED Programs
Changes in Materials and Resources Portionof LEED Programs – LEED 2009 to LEED v.4
LEED (2009) LEED v.4
Building and material reuse credits (walls, floors, roof, interior elements)
Moved to Building Life Cycle Impact Reduction credit
Building life cycle impact reduction Added option for whole building LCA of structure and enclosure
New credit, Building Product Disclosure and Optimization, focuses on selecting products with improved life cycles; rewards material optimization, disclosure, products with EPDs, and use of local products (with local now defined as a 100-mile radius)
Recycled content, rapidly renewable materials, certified wood
Moved into Building Product Disclosure and Optimization – Sourcing of Raw Materials
New credit, Building Product Disclosure and Optimization – Sourcing of Raw Materials, rewards products from manufacturers that provide information on land use practices, extraction locations, labor practices, etc.
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Green Globes v.1.3
Three Green GlobesTerrena – Northridge, CaliforniaArchitect: TCA ArchitectsDeveloper: Northwestern Mutual Life Insurance Company
Photo by 360o Virtual Visions
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BREEAM
BREEAM Industrial Outstanding RatingDEFRA Lion House – Alnwick, Northumberland, UKArchitects: Gibberd (Client Design Team) and Frank Shaw Associates (Design and Build Team)
Photo courtesy Frank Shaw Associates
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Built GreenTM
Built Green 4-StarSingle Family Townhomes – Redmond, Washington
Photo courtesy BuiltGreen
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EarthCraft
EarthCraft House Platinum CertificationProud Green Home – Serenbe, GeorgiaDeveloped by: Imery Group2013 EarthCraft Project of the Year Winner
Photo courtesy Imery Group
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Photo by Bruce Damonte
139 GreenPointsDrs. Julian & Raye Richardson Apartments – San Francisco, CaliforniaArchitect: David Baker ArchitectsWoodWorks Multi-Story Wood Design Award, 2011
GreenPoint
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National Green Building Standard
NGBS Green Certified: Gold LevelPrivate Residence – Raleigh, North CarolinaBuilder: Beaman Building and Realty, Inc.
Photos courtesy Beaman Bulding and Realty, Inc.
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Earth Advantage
Photo by Christian Columbres Photography
Earth Advantage
Earth Advantage GoldReed College Performing Arts Building – Portland, OregonArchitect: Opsis Architecture, LLPWoodWorks Beauty of Wood Design Award, 2014
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Living Building Challenge
Living Building Challenge: Certified Net Zero Energy BuildingDavid & Lucile Packard Foundation Headquarters – Los Altos, CaliforniaArchitect: EHDDWoodWorks Green Building with Wood Design Award, 2011
Photo: Jeremy Bittermann, courtesy EHDD
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Robert Paine Scripps Forum for Science, Society and the EnvironmentLa Jolla, CaliforniaArchitect: Safdie Rabines ArchitectsWoodWorks Institutional Wood Design Award, 2010
Photo: Anne Garrison
ASHRAE, IgCC and CALGreen offer the option to pursue either a prescriptive or performance path.
Green Building Codes
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LIFE CYCLE ASSESSMENT: GETTING TO A MATERIAL’S REAL GREEN QUOTIENT
SECTION 3
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Life Cycle Assessment
Growing number of LCA tools have made it a viable option for any designer.
Tools are user-friendly and low-cost – most cases free
Source: Building Green With Wood www.naturallywood.com
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Standardized, third-party-verified label that communicates the environmental performance of a product
Based on LCA and applicable worldwide
Wood industry has been early adopter of EPDs
www.awc.org
www.cwc.ca
EPDs on wood products are available from:
Environmental Product Declarations
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Wood and LCA
LEED SilverWillson Hospice House – Albany, GeorgiaArchitect: Perkins+WillWoodWorks Institutional Wood Design Award, 2011
Photo by Jim Roof Creative Photography
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COMPARISON OF ENVIRONMENTAL IMPACTS OF STEEL VS. WOOD DESIGN(Values indicate magnitude of impact associated with steel design as multiple of wood design impact)
Fossil Fuel Consumption
Weighted Resource
Use
Global Warming Potential
Acidification Potential
Human Health Respiratory
Effects Potential
Eutrophication Potential
Ozone Depletion Potential
Smog Potential
1.4x 1.02x 1.6x 1.4x 1.3x 3.0x 1.5x 1.2x
COMPARISON OF ENVIRONMENTAL IMPACTS OF CONCRETE VS. WOOD DESIGN(Values indicate magnitude of impact associated with concrete design as multiple of wood design impact)
Fossil Fuel Consumption
Weighted Resource
Use
Global Warming Potential
Acidification Potential
Human Health Respiratory
Effects Potential
Eutrophication Potential
Ozone Depletion Potential
Smog Potential
1.9x 1.02x 1.6x 1.4x 1.3x 3.0x 1.5x 1.2x
Environmental Impacts Comparisons
Source: Athena EcoCalculator
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WOOD AND CARBONSECTION 4
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Photo courtesy of Grant + Sinclair Architects
Sustainable Forestry Carbon Cycle
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Photo: naturallywood.com
Environmental Advantage
Photo: Trinec Iron and Steel Works
Wood grows naturally and requires relatively little additional energy to manufacture into products
Construction materials such as steel, cement and glass requires temperatures of up to 3,500oF and large quantities of energy to produce
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Photo by WI Bell
El Dorado, ArkansasArchitect: CADM Architecture, Inc.Carbon benefits calculated using the WoodWorks Carbon Calculator8
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NEW MATERIALS CREATE NEW POSSIBILITIES
SECTION 5
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CLT Panels
Photo courtesy of Land Lease
Forté in Melbourne, Australia, was the tallest timber apartment in the world when it was completed in 2012.
Photo courtesy of naturallywood.com
Engineered wood panel
3, 5 or 7 layers of dimension lumber oriented at right angles to one another then glued to form structural panels
Exceptionally strong, dimensionally stable and rigid
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CLT in North America
Photo: naturallywood.com
Photo by Aitor Sanchez/EwingColePhoto: OMB Architects
Earth Sciences Building at the University of British Columbia – LEED Gold-certified
For McMurray Airport– Blend of best practices and approaches of various green building rating systems
The Crossroads, part of the Promega Feynman Center – LEED Gold-certified
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WHAT THE FUTURE HOLDSSECTION 6
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Photo by Martin Tessler, courtesy Perkins + Will
LEED GoldEarth Sciences Building at the University of British Columbia
Architect: Perkins + Will
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Photo by David Lena;courtesy of HMC Architects
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