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LEED v4 Education Series
Indoor Environmental Quality

GBCI: 0920007448

LEED v4 education suites makes connecting with the v4 EQ credit category easier than ever.
Eligible for 1 CE HOUR.
  • 1 CE

  • LEED AP BD+C
  • LEED AP O+M
  • LEED AP ID+C
  • LEED Green Associate

Rating system: v4

Published on: February 26, 2016

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About

Three ways to learn more about LEED v4 and Indoor Environmental Quality
LEED v4 education suites will present a range of engagement opportunities in a number of formats to accommodate every learning style and schedule.

Explore courses. While the courses below are no longer free, they are still available. Increase your knowledge with these credit-by-credit reviews.

Ask the experts. Ask the Expert live discussion sessions offered an opportunity to hear form the subject matter experts and ask questions.
Please note: the dates for this webcast have passed. A recording of the webcast is available for viewing above. This recorded version of the session is not registered for GBCI CE hours. Some of the top questions asked are below.
Download the full list of questions and answers.

Could you provide a comparison between the LEED 2009 and LEED v4 scorecards for IEQ?
The points between the LEED 2009 and LEED v4 rating systems are fairly similar for the IEQ credit category. The number of prerequisites, with the exception of Healthcare, remained the same for all rating systems but LEED v4 includes less credits because the credit requirements were consolidated for several concepts including ventilation and source control, low-emitting materials, thermal comfort, and lighting.

  • For New construction, the IEQ credit category has 15 possible points for LEED 2009 and 16 possible for LEED v4.
  • For Core and Shell, the IEQ credit category has 12 possible points for LEED 2009 and 10 possible for LEED v4.
  • For Schools, the IEQ credit category has 19 possible points for LEED 2009 and 16 possible for LEED v4.
  • For Healthcare, the IEQ credit category has 18 possible points for LEED 2009 and 16 possible for LEED v4.
  • For New Construction in Retail, LEED 2009 and LEED v4 both have 15 possible points.
  • For Commercial Interiors, LEED 2009 and LEED v4 both have 17 possible points.
  • For Commercial Interiors in Retail, the IEQ credit category has 17 possible points for LEED 2009 and 16 possible for LEED v4.
  • For Operations and Maintenance, the IEQ credit category has 15 possible points for LEED 2009 and 17 possible for LEED v4.
  • For the BD+C and ID+C rating systems, the lighting-related credits and Indoor air quality assessment are worth more in LEED v4. Thermal comfort and low-emitting materials are worth less. For O+M, the daylight and views credit is worth more in LEED v4.
  • The summary of changes from LEED v2009 to LEED v4 can be found here.

How did the HVAC-related requirements change from LEED 2009 to LEED v4?
The main changes for ventilation include:

  • Updated ASHRAE standard 62.1-2007 to ASHRAE standard 62.1-2010
  • For BD+C and ID+C projects, the Minimum Indoor Air Quality prerequisite now includes the monitoring requirements previously included in the credit Outdoor Air Delivery Monitoring.
  • Increased ventilation and source control strategies were consolidated into the new Enhanced Indoor Air Quality Strategies credit.

The main changes for thermal comfort include:

  • Updated ASHRAE Standard 55-2004 to ASHRAE Standard 55-2010
  • Thermal comfort- verification is no longer included in the BD+C and ID+C rating systems.
  • Thermal comfort design and controllability have been combined into one credit.

How are the Acoustic Performance requirements for New Construction projects different than the Schools acoustics prerequisite and credit?
Both rating systems address acoustic design strategies to minimize HVAC background noise and sound transmission, and to optimize reverberation time. The Schools rating system includes the ANSI Standard S12.60-2010, which is a standard specific to classroom acoustics while the New Construction and ID+C rating systems only reference the 2011 HVAC Applications ASHRAE Handbook and AHRI Standard 885-2008. The Schools Minimum acoustic performance prerequisite also includes requirements for exterior noise, which are not addressed in the New Construction and ID+C rating systems.

The Acoustic Performance credit in the Healthcare rating system includes healthcare-specific references: the 2010 FGI Guidelines for Design and Construction of Health Care Facilities and the reference document on which it is based, Sound and Vibration Design Guidelines for Health Care Facilities. The credit also addresses minimizing background noise and sound transmission (sound isolation), and optimizing reverberation time (based on acoustical finishes), in addition to speech privacy and site exterior noise.

Discover resources. Looking for more? Below is a list of resources.
Check out these resources in the web-based reference guide located within the LEED Credit Library (subscription required)—click on the videos in the right-hand column of the page. Learn more about accessing the guide.

Objectives

  1. Support project teams, decision makers and influencers looking to explore LEED v4 EQ credit category
  2. Learn more about the select technical differences from LEED 2009 to v4, pertaining to BD+C, ID+C and O+M
  3. Access technical experts to help address your general questions about how best to implement credit requirements
  4. Acquire insight on emerging technologies that are important within the credit category and develop a better understanding of the business case for pursuing EQ credits

Series

This course is a part of the following series:
LEED v4 Education Series

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Intermediate

Created by

U.S. Green Building Council
Washington, DC
United States
USGBC National Capital Region
Washington, DC
United States

Leaders

  • 5
    Theresa Lehman made 5 contributions in the last 6 months

Theresa Lehman

LEED Fellow, WELL Faculty, LEED Faculty, LEED AP BD+C, ID+C, WELL AP, Director of Sustainable Services Miron Construction Co., Inc.
  • 1
    Larissa Oaks made 1 contribution in the last 6 months

Larissa Oaks

Indoor Environmental Quality Specialist U.S. Green Building Council
Dana Schneider
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Other sessions included in that series:

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Water

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Indoor Environmental Quality

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Indoor Environmental Quality

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v4 Curriculum Webinar: Material Resources

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