Purpose of this Seminar:
to provide an understanding of the
National Green Building National Green Building StandardStandardTMTM
and how it can benefit communities
to provide an understanding of the
National Green Building National Green Building StandardStandardTMTM
and how it can benefit communities
Slide 2
and how it can benefit communities
by guiding and supporting the
Building Industry.
and how it can benefit communities
by guiding and supporting the
Building Industry.
Standard Scope
� Covers all major areas of residential construction
�New construction
�Renovations and
additions
�Site development
�Multi-unit construction
Slide 3
Chapters4 - Site Design and
Development
5 - Lot Design, Preparation,
and Development
6 - Resource Efficiency 6 - Resource Efficiency
7 - Energy Efficiency
8 - Water Efficiency
9 - Indoor Environmental
Quality
10 - Operation, Maintenance,
and Homeowner EducationSlide 4
Practices
� Section 4: Site Design & Development *
� Project Team and Mission Statement
� Site Selection
Site Design
� Section 5: Lot Preparation, Design, & Development *
� Lot Selection
� Lot Design� Site Design
� Site Development and Construction
� Other Innovative Practices
� Construction Activity
� NGBS Addition &
Renovation Considerations
Slide 5
*All sections related to NGBS Chapters include a summary of mandatory
practices and a discussion about addition and renovation considerations.
Practices� Section 6:
Resource Efficiency *
� Reduce Quantity
� Durability
� Composition
Handling
� Section 7: Energy Efficiency *
� Conservation
� Efficient Consumption –
Seasonal
� Efficient Consumption –� Handling
� Life Cycle Assessment
� Efficient Consumption –
Baseload
� Alternative Energy
Generation
� Measuring Performance
Slide 6
*All sections related to NGBS Chapters include a summary of mandatory
practices and a discussion about addition and renovation considerations.
Practices� Section 8:
Water Efficiency *
� Indoor Water
Strategies
� External Water Use
Strategies
� Section 9: Indoor Environmental Quality *
� Indoor Environmental
Quality Issues
� Eliminate
SeparateStrategies
� An Integrated and
Profitable Approach to
Water Conservation
� Separate
� Ventilate
� Filtrate
� Radon Mitigation
Slide 7
*All sections related to NGBS Chapters include a summary of mandatory
practices and a discussion about addition and renovation considerations.
Practices
� Section 10: Operation, Maintenance & Building Owner Education *
� Building Owner’s
ManualsManuals
� Training of Building
Owners
Slide 8
*All sections related to NGBS Chapters include a summary of mandatory
practices and a discussion about addition and renovation considerations.
Industry Standard
What value is there in having an industry standard?
How can it be useful to building professionals??
�It sets criteria.
�It provides a resource/guideline.
�It provides a basis for building
Slide 9
�It provides a basis for building
incentive/rebate programs.
�It likely will overtake local programs and
provide more consistency.
�Especially since it is ANSI certified; it tends
to raise the bar on code over time.
Project Certification (New Constr.)
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
Builder HiresAccredited Verifier
Builder HiresAccredited Verifier
Builder HiresAccredited Verifier
Verifier SchedulesVerifier SchedulesVerifier Schedules
We’ll look at these in detail.
Slide 10
Project Obtains
Green Certification
Project Obtains
Green Certification
Project Obtains
Green Certification
Verifier SchedulesRough-in InspectionVerifier Schedules
Rough-in InspectionVerifier Schedules
Rough-in Inspection
Verifier SchedulesFinal Inspection
Verifier SchedulesFinal Inspection
Verifier SchedulesFinal Inspection
Notifies
NAHB
Research
Center
Notifies
NAHB
Research
Center
Notifies
NAHB
Research
Center
Home Planning and Scoring
� Online Green Scoring Tool
� Green scoreBuilder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project� Green score
� Performance levels
� Designer’s report
Slide 11
We’ll look at these in detail.
Tool to Score ProjectTool to Score ProjectTool to Score Project
Online Green Scoring Tool
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
FreeFree
www.nahbgreen.org/Scor ingTool
Slide 12
Online Green Scoring Tool cont.
� X
� Lists major practices
within categorywithin category
� Click to display criteria
� Enter and next items
display
� Cumulative score at the
bottom
Slide 13
Online Green Scoring Tool cont.
� Home planning involves:
�Assessing the impact of
design and selection decisions
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
Builder Uses Green Scoring
Tool to Score Project
�Planning for the impact
� Integral and cost effective
�Self scoring option
�Work can be sequenced
Slide 14
HVAC installation example
Green Score
� Green score depends
on the items
implemented from
each NGBS chapter
NGBS Chapter Mandatory
Practices
Lot design, preparation,
and development 0
Resource Efficiency 4
Builder Uses Green Scoring Tool to Score Project
Builder Uses Green Scoring Tool to Score Project
Builder Uses Green Scoring Tool to Score Project
each NGBS chapter
� Builder must satisfy
the mandatorymandatory
practices
� 44 for bronzebronze/silversilver
� 46 for goldgold/emeraldemerald
Slide 15
Resource Efficiency 4
Energy Efficiency 17
Water Efficiency (0/2)
Indoor Environmental Quality 13
Operation, Maintenance, and Building
Owner Education 10
Total 44/46
Performance LevelGreen Building Categories
Performance Level Points
Bronze Silver Gold Emerald
Chapter 5 Lot Design, Preparation,
and Development 39 66 93 119
Chapter 6 Resource Efficiency 45 79 113 146
Chapter 7 Energy Efficiency 30 60 100 120
Chapter 8 Water Efficiency 14 26 41 60
Indoor Environmental
The category attaining the lowest level, determines the project’s !
Additional points recognize thata builder may excel in one category over another.
Builder Uses Green Scoring Tool
to Score Project
Builder Uses Green Scoring Tool
to Score Project
� Each non-mandatory item receives points.
� Performance levels have point thresholds.Slide 16
Chapter 9 Indoor Environmental
Quality 36 65 100 140
Chapter 10
Operation, Maintenance
and Building Owner
Education
8 10 11 12
*Additional points from
any category 50 100 100 100
Total Points 222 406 558 697
determines the project’s overall certification level score.
! category over another.
Designer’s Report Builder Uses Green Scoring Tool
to Score Project
Builder Uses Green Scoring Tool
to Score Project
Builder Uses Green Scoring Tool
to Score Project
Slide 17
Schedule a Verifier
� Points claimed must be verified
through at least two field inspections.
� Verifiers must:
� Be accredited by the NAHB Research Center
� Demonstrate experience in construction or
Builder HiresAccredited Verifier
Builder HiresAccredited Verifier
Builder HiresAccredited Verifier
� Demonstrate experience in construction or
inspections, sustainable building practices and energy
conservation
� Complete a course and test
� Be an independent party
� Not work for HBA or supply products/services
� Not be trade contractors or suppliers for the
verified/certified homeSlide 18
Verifier Inspection Process
1. Create the Verification Report
and check the points claimed
on the Designer’s Report.
2. Conduct a rough-in inspection
prior to drywall enclosure.
Builder Hires
Accredited Verifier
Builder Hires
Accredited Verifier
Builder Hires
Accredited Verifier
Verifier Schedules
Rough Inspection
Verifier Schedules
Rough Inspection
Verifier Schedules
Rough Inspection
prior to drywall enclosure.
3. Final site visit to:
� Award points for all remaining claimed points
� Complete review of submitted other reports
4. Verifier and the builder sign off on an updated
Verification Report
Slide 19
Verifier SchedulesFinal Inspection
Verifier SchedulesFinal Inspection
Verifier SchedulesFinal Inspection
Certification Process DiscussionWhere do you see builders having the most difficulty in the
certification process??
How can these challenges be addressed??
• Being Prepared for verification inspections.
• Having time for the process.
Slide 20
How can these challenges be addressed??
What advice could you offer to those who have not been through the
process??
• Talk to a HERS Rater or Verifier.
• Be prepared and have documentation on hand.
Green Remodeling and the
Standard
� Incorporating sustainable, durable, and healthy features in the renovation of existing homesexisting homes
�Energy efficient features
�Green deconstruction and recycling practices
� There is a huge market opportunity!
Slide 21
Remodeling Project Certification
� The NGBS defines green remodeling in two ways:
�� RenovationsRenovations: restoring or improving an
existing building or dwelling unit, including existing building or dwelling unit, including
landscape or hardscape
�� AdditionsAdditions:
� Less than 75% of the conditioned floor area are
subject to the remodeling criteria
� Greater than 75% shall comply with Sections 303
or 304
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Remodeling Certification
� Renovations (less than 75 percent of the conditioned floor area)
�� Green Building PathGreen Building Path
�� Green Remodeling PathGreen Remodeling Path
� A project may be categorized as either a remodel or an addition or both.
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Remodeling CertificationGreen Building PathGreen Building Path
� Applies to all structures
constructed during or
after 1980
� Requires compliance with
Green Remodeling PathGreen Remodeling Path
� Applies to all buildings and
dwelling units constructed
prior to 1980
� Has three qualifying � Requires compliance with
all mandatory remodelingremodeling
items in the NGBS
Chapters 5 through 9
� Requires that the point
thresholds awarded in
Table 303 for each of the
chapters be achieved
� Has three qualifying
characteristics:
� Indoor environmental quality
� Estimated energy consumption is reduced by specified percentages
� Estimated water usage is reduced by specified percentages
Slide 24