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ROOFING IN LEED:
v4 RATING SYSTEM UPDATES
Theresa Backhus, PLA, LEED AP BD+C, SITES AP
U.S. Green Building Council
Technical Specialist
Direct: 202.742.3737
CRRC ANNUAL MEMBERSHIP MEETING
JUNE 14, 2017
WHO IS FAMILIAR WITH LEED?
WHO IS FAMILIAR WITH LEED v4?
WHAT HAVE YOU HEARD ABOUT ROOFING IN v4?
WHAT WOULD YOU LIKE TO LEARN MORE ABOUT?
ICEBREAKER
Building Impacts
Platinum
Gold
Silver
Certified
0k 7k1k 2k 3k 4k 5k 6k
CERTIFICATION LEVELS
8k
Number of projects
CERTIFICATION TRENDS
Platinum
Gold
Silver
Certified
PE
RC
EN
T O
F L
EE
D P
RO
JE
CT
S
YEAR
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Homes Multifamily Midrise
Existing Buildings for Retail
Existing Buildings for Schools
Hospitality
Warehouses and Distribution Centers
Data Centers
MARKET SECTOR ADAPTATIONS
LEED v4 SYSTEM GOALS
Greater levels of energy efficiency.
Greater levels of water efficiency.
Better materials selection.
Improved occupant well-being.
More thoughtful design.
LEED v4 drives buildings to be better
Major prerequisite changes
in LEED v4
Energy
• Design and construction projects required to be 14%
better than LEED 2009 (5% better than ASHRAE 90.1-
2010)
• Existing building projects required to have an Energy
Star score of 75 (LEED 2009 requires 69).
• Energy metering required.
Water
• Process water requirements added
• Outdoor water use requirements added to design and
construction
• Water metering required.
Materials
• Construction and demolition waste management plan
required.
Indoor Environmental Quality
• Ventilation standard updated to ASHRAE 62.1-2010.
Outdoor airflow monitoring required for design and
construction projects.
Integrative
Process
Location &
Transportation
INTEGRATIVE PROCESS
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%
Water Efficiency11%
Energy and Atmosphere
34%
Materials and Resources
13%
Emphasizes importance of location-based decisions.
Improves alignment between LEED for Neighborhood
Development and other rating systems.
Focuses on performance and strengthens the linkage
between anticipated outcome and credit achievement.
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%Water Efficiency
11%
Energy and Atmosphere
34%
Materials and Resources
13%
Encourages integrative process through the new credit
for site assessment.
Incorporates ideas from the Sustainable Sites Initiative.
Simplifies credit requirements, using BUG rating to assess
light pollution and local rainfall records for rainwater
management.
Sustainable Sites
Rainwater ManagementCredit: 3 points
Sustainable Sites
Heat Island Reduction
Credit: 1-2 points
Option 1: Nonroof and roof
Option 2: Parking under cover
ANSI/CRRC S100
Rated Products Directory
Rapid Ratings
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%
Water Efficiency11%
Energy and Atmosphere
34%
Materials and Resources
13%
Addresses more water uses including fixtures & fittings,
processes, appliances, cooling towers, and landscape
water use.
Focuses on measuring water use through a new water
metering prerequisite and credit.
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%Water Efficiency
11%
Energy and Atmosphere
34%
Materials and Resources
13%
Adopts ASHRAE 90.1-2010 and requires a 5% improvement
(14% increase over LEED 2009)
For Existing Buildings: ENERGY STAR score raised to 75.
Focuses on measuring energy use through a metering
prerequisite and credit.
Begins to address energy from a community scale in
addition to building-level.
Energy and Atmosphere
Minimum Energy
PerformancePrerequisite
Intent: To reduce the environmental and
economic harms of excessive energy use
by achieving a minimum level of energy
efficiency for the building and its systems.
Option 1: Whole building energy simulation
Option 2: ASHRAE 50% advanced energy
design guide
Option 3: Advanced Buildings Core
Performance Guide
Energy and Atmosphere
Demand ResponseCredit: 1-2 points
Intent: To increase participation in demand
response technologies and programs that
make energy generation and distribution
systems more efficient, increase grid
reliability, and reduce greenhouse gas
emissions.
• Encourages projects to design and
install systems necessary to participate
in demand response programs
• New construction and EB: O+M
PEER (Performance Excellence in Electricity Renewal) was
modeled after the LEED green building rating system and bills
itself as the nation’s first comprehensive, consumer-centric,
data-driven system for evaluating power system performance.
A key component of what makes a green
building is the power that supplies it.
LEEDPEER
PEER and LEED
Energy and Atmosphere
Renewable Energy
ProductionCredit: 1-3 points
Intent: To reduce the environmental harms
associated with fossil fuel energy by
increasing self-supply of renewable energy.
• Use renewable energy systems to
offset project’s energy costs
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%Water Efficiency
11%
Energy and Atmosphere
34%
Materials and Resources
13%
Life cycle approach to category.
Includes optional whole building
life cycle assessment for new
construction.
Focuses on holistic
environmental performance of
materials through Building
Disclosure and Optimization
credits.
Materials and Resources
Prerequisites
Storage and Collection of Recyclables
C&D Waste Management Planning
PBT Source Reduction—Mercury (Healthcare)
Credits
Long-Term Commitment (ID+C)
Building Life-Cycle Impact Reduction
Interiors Life-Cycle Impact Reduction (ID+C)
Building Product Disclosure and Optimization—
Environmental Product Declarations
Sourcing of Raw Materials
Material Ingredients
PBT Source Reduction—
Mercury (Healthcare)
Lead, Cadmium, and Copper (Healthcare)
Design for Flexibility (Healthcare)
C&D Waste Management
Indoor Environmental Quality16%
Location and Transportation
16%
Sustainable Sites10%Water Efficiency
11%
Energy and Atmosphere
34%
Materials and Resources
13%
Indoor Environmental
Quality
Prerequisites:
Minimum Indoor Air Quality Performance
Environmental Tobacco Smoke Control
Minimum Acoustic Performance (Schools)
Credits:
Enhanced Indoor Air Quality Strategies
Low-Emitting Materials
Construction IAQ Management Plan
Indoor Air Quality Assessment
Thermal Comfort
Interior Lighting
Daylight
Quality Views
Acoustic Performance
69
Getting to Certified: The Final 10 Points: - Exemplary Performance- Innovation- Pilot Credits- Regional Priorities
REGIONAL PRIORITY
CREDIT LIBRARY
REFERENCE GUIDE
CREDIT RESOURCES
SAMPLE FORMS
PILOT CREDITS
REGIONAL PRIORITY CREDITS
ADDENDA DATABASE
LEEDUSER
MATERIALS SELECTION
ARC
RESOURCES
CREDIT LIBRARY
REFERENCE GUIDES
Theresa Backhus, PLA, LEED AP BD+C
Technical Specialist
Direct: 202.742.3737
U.S. Green Building Council
2101 L Street NW, Suite 500
Washington, DC 20037
Web: www.usgbc.org
Main: 202.828.7422