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

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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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© 2014, reThink Wood®, www.rethinkwood.com

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.

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

GREEN RATING SYSTEMS, CODES AND WOODSECTION 1

LEED PlatinumBranson Commons – Ross, CaliforniaArchitect: Turnbull Griffin Haesloop ArchitectsWoodWorks Institutional Wood Design Award, 2011

Photo by David Wakely

Approaches to Rating Green Buildings

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

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.

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

NEW DEVELOPMENTS IN GREEN BUILDING RATING SYSTEM & CODES

SECTION 2

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

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.

Green Globes v.1.3

Three Green GlobesTerrena – Northridge, CaliforniaArchitect: TCA ArchitectsDeveloper: Northwestern Mutual Life Insurance Company

Photo by 360o Virtual Visions

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

Built GreenTM

Built Green 4-StarSingle Family Townhomes – Redmond, Washington

Photo courtesy BuiltGreen

EarthCraft

EarthCraft House Platinum CertificationProud Green Home – Serenbe, GeorgiaDeveloped by: Imery Group2013 EarthCraft Project of the Year Winner

Photo courtesy Imery Group

Photo by Bruce Damonte

139 GreenPointsDrs. Julian & Raye Richardson Apartments – San Francisco, CaliforniaArchitect: David Baker ArchitectsWoodWorks Multi-Story Wood Design Award, 2011

GreenPoint

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.

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

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

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

LIFE CYCLE ASSESSMENT: GETTING TO A MATERIAL’S REAL GREEN QUOTIENT

SECTION 3

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

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

Wood and LCA

LEED SilverWillson Hospice House – Albany, GeorgiaArchitect: Perkins+WillWoodWorks Institutional Wood Design Award, 2011

Photo by Jim Roof Creative Photography

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

WOOD AND CARBONSECTION 4

Photo courtesy of Grant + Sinclair Architects

Sustainable Forestry Carbon Cycle

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

Photo by WI Bell

El Dorado, ArkansasArchitect: CADM Architecture, Inc.Carbon benefits calculated using the WoodWorks Carbon Calculator8

NEW MATERIALS CREATE NEW POSSIBILITIES

SECTION 5

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

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

WHAT THE FUTURE HOLDSSECTION 6

Photo by Martin Tessler, courtesy Perkins + Will

LEED GoldEarth Sciences Building at the University of British Columbia

Architect: Perkins + Will

Photo by David Lena;courtesy of HMC Architects

For more information on building with wood, visit rethinkwood.com

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