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National Green Building
Certification
EEBA Conference – Portland, OROctober 14
Benefits of Green Homes
Increased durability Better indoor air
quality Reduced
environmental impact Lower utility bills More comfortable Reduced waste /
pollution
Total Cost of Homeownership
Conventional Home Green Certified Home
House Cost $154,000
Mortgage $139,334
Monthly Payment
$1023
Utility Bills $93
Total Cost Homeownership
$1116
Savings $61
House Cost $150,000
Mortgage $135,000
Monthly Payment
$991
Utility Bills $186
Total Cost Homeownership
$1177
Builder Interest in Green
No Interest 12%Considering Green 20%Learning How to Build Green 23%Build Non-Certified Green Homes 28%Build Certified Green Homes 17%TOTAL 100%
Source: 2009 Home Builder Omnibus Survey, NAHB Research Center
Benefits to Builders Third-party inspections during construction
allow problems to be corrected more easily Builder can provide third-party assurance to
home buyers and increase customer satisfaction
Verification and certification guarantees compliance with NGBS
Verifiers can help builders incorporate best green building practices into their projects
NGBS GREEN CERTIFICATION
Certification to the NGBS Green ANSI Standard
Key Elements
1. ANSI-approved consensus standard2. Free web-based Green Scoring Tool3. Third-party verification of all points claimed 4. Applies to all residential projects5. Requires progressively higher levels of
environmental performance in every category to obtain higher levels of green certification
National Green Building Standard (NGBS)
Approved Jan 2009 Collaboration
between ICC and NAHB
Only ANSI-approved green building rating system
National Green Building Standard
Hallmarks of ANSI process include: consensus by balance of stakeholders; broad-based public review and comment; consideration of public comments; incorporation of approved changes into
standard; and right to appeal for anyone who believes
that due process was not respected
6 Green Practices Categories
Lot Design Energy Efficiency
Water Efficiency
Indoor Air Quality
Operation & Maintenance
Resource Efficiency
NGBS Green Certification Levels
Available Levels of Green Certification Bronze, Silver, Gold, and Emerald Levels
Minimum score per section required for each level
Need additional points across all sections The lowest section score determines the
home’s overall score
Performance Levels
Certification to the Standard
Standard defines green
Project verification
ensures compliance
National certification
ensures consistency
Obtain Green Certified Mark
Project Certification Process
Builder Scores Project
Builder Hires Accredited Verifier
Rough Inspection
Final Inspection
Notify NAHB Research Center
Notify NAHB Research Center
Importance of Certification
Buyers wary Certification mark -
proof of compliance RC protective of
misleading claims Heightened Scrutiny
New FTC Green Guides Energy Star GAO Report
COSTSCertification to the NGBS Green ANSI Standard
Rating SystemBronze /Certified Silver Gold
Emerald/
Platinum
National Green Building
Standard 1 - 2% 3% 7% 16%
LEED-H 3 - 6% 5 - 7%11 - 13%
17 - 23%
Green Rating Cost Comparison
Cost Analysis & Comparison
Generally there are 3 costs associated with building & certifying to the NGBS Construction Costs Verification/Testing Costs Certification Fees
Determined between each Builder & Verifier
Inspections typically two hours each (rough & final)
Many verifiers also provide other inspection/ testing services are already on site Testing fees set by
the market
Verification Costs
Single-Family Homes $200/home (NAHB members) $500 (non-NAHB members)
Multifamily buildings $200/building (NAHB members) $500 (non-NAHB members) Plus per-unit fee ($20)
Land Development Design Approval ($2,500) Certified Development ($2,500)
Certification Fees
TYPES OF RESIDENCES CERTIFIED
Scope of NGBS Green Subdivisions Green Building Path
Single Family Multi-family Additions Renovations
Green Remodel Path
Green Subdivisions - Land Development
One, Two, Three, and Four Stars
Performance criteria in Standard Chapter 4
Measures at planning, design and construction phases
Certification at design, completion, or for phases
All units must have green practice for points
Includes MF remodeling
One verification report per building
Mixed-use ok
Green Building Path- Multi-family Buildings
Available for additions adding 75% or less conditioned floor area to the building
Requires: Follows green
building path Uses Addition notes
specified in the NGBS
Green Building Path- Additions
Available for any home
Requires: Follows green
building path Uses Addition notes
specified in the NGBS
Green Building Path- Green Renovation
Green Remodel Path
Available for homes pre-1980
Requires: Improve energy
efficiency Reduce water usage Implement indoor air
quality measures Strictly performance
based
THE GREEN SCORING TOOL
The TurboTax® for the Standard
31
New Scoring Spreadsheet
3RD PARTY VERIFICATION
Verification to the NGBS
Third-Party Verification
Verification Details NAHB Research Center Accredited Verifier 100% Verification Two Verification inspections
One at rough One at final
Verifier’s Resource Guide used as basis for scoring principles
DUAL CERTIFICATION FOR NEW HOMES
Green & Energy Certification in One
Dual Certification NGBS & Builders Challenge
Dual Certification June 29, 09 NGBS DOE’s Builders Challenge
Seamless Integration w/ Green Certification Green scoring tool www.NAHBGreen.org
DOE’s Builders Challenge
Department of Energy’s (DOE’s) Builders Challenge Energy Certification HERS Index of 70 or
less Quality Criteria
Dual Certification Building practices leading to high
performance homes All practices in Builders Challenge
Quality Criteria are part of the NGBS (Chap 6,7, & 9)
Most NGBS silver-level houses can also meet Builders Challenge
GREEN APPROVED PRODUCTS
Products pre-approved for points under Standard
Green Approved Products
Pre-approved points for products Assists builders with making
product choices Link in Green Scoring Tool Simplifies specifications and field
inspections Simple and seamless process for
builders to select products
Approved Products Integrated with Green
Scoring Tool
www.GreenApprovedProducts.com
Program Stats
Accredited Verifiers 405 Projects Scored 15003 Green Approved Products 135 Builders 429 Certified Homes 1515 MF / Units 16/702 Land Development 11 Scheduled Inspections 488
LOOK FOR THIS MARK.IT’S PROOF THAT YOUR HOME IS GREEN!
Certification
Questions?
www.nahbgreen.org Contact Us
NGBS Update Current NGBS Revision Proposals
http://ngbscomments.nahbrc.org/ Plan to start the
process to update the NGBS in 2011
NAHB Research Center Secretariat for ANSI update
50
Resources National Green Building Certification
www.NAHBGreen.org Dual Certification
www.NAHBGreen.org/Guidelines/builderschallenge.aspx
Green Approved Products www.GreenApprovedProducts.com
NGBS Revision Proposal Form http://ngbscomments.nahbrc.org
Amber WoodProgram Manger, Energy Efficiency
NAHB Research Center400 Prince George’s Blvd Upper Marlboro, MD
20774301-430-6309 (toll-free) 800-638-8556
[email protected] www.nahbrc.com
www.NAHBGreen.org
www.GreenApprovedProducts.com