Understanding LEED for Homes v4 - GreenHome Institute · Q & A EQ Credit Balancing Heating and Cooling Distribution Systems Option 1: Multiple Zones Single‐family houses with less

Understanding LEED for Homes v4A Nine Part Series

Module #8: IN/RP

Continuing Education

• 1 Hour per course• 9 Hours total

Local Contractor/Architect may be applicable

USGBC Education Provider

Formerly

Founded 2000Midwest LEED for Homes Provider 501(c)3 non‐profit; mission:

"We exist to empower people who seek healthy and sustainable choices in the renovation and construction of the places we live."

Moderator

Brett Little, LFA,APH,GHPExecutive DirectorGreenHome InstituteGrand Rapids, [email protected]

Agenda Module 8

• Review of Module 7 (EQ)• IN• RP• AE• Process / Tools• Project Example• Review / Next Module

Learning Objectives

Student participants will be able to:• Describe changes in v4 Rating System

from v2008.

• Identify prereqs and credits in the IN / RP category.

• Apply IN / RP prereqs and credits to a project.

• Fill‐out the v4 workbook.

Review: Module 7Environmental Quality (EQ)

Indoor Pollutants

>> Outdoor Pollutants

??

Indoor Environmental

Quality(EQ)

Seven Prereqs

Eight Credits

Mid‐Rise Only

Review: Overview of EQ

New PrereqsEQ P1 Ventilation (Std 62.2‐2010)EQ P6 No ETS in Common Areas* EQ P7 Compartmentalization*

* For ALL Attached SF, & Lowrise and Midrise MF

Point Floor Changed from 6 pts. to 3 pts.

Moved InMR 2.2 Low Emitting Products

Total PointsFrom 22 to 16

Don’t be Afraid of Change

Comparison of LEED for Homes VersionsCredit # Credit Name Single Family

(Max. Points)Midrise

(Max. Points)

V 2008 V 4.0 V 2008 V 4.0 V 2008 V 4.0

EQ 1 N/A 13

EQ 2.1 EQ P2 Combustion Venting Prereq Prereq

EQ 2.2 EQ C5 Combustion Venting 2 2

EQ 3 N/A Moisture Control 1 N/A

EQ 4.1 EQ P1 (2) Ventilation Prereq Prereq

EQ 4.2 EQ C1 (2) Enhanced Ventilation * 2 2

EQ 4.3 EA P1 3rd Party Verification 1 N/A

EQ 5.1 EQ P1 (1) Prereq Prereq

EQ 5.2 EQ C1 (1) Enhanced Ventilation * 1 1

EQ 5.3 EA P1 3rd Party Verification 1 N/A

EQ 6.1 EA P1 Room by Room Load Calc Prereq Prereq

EQ 6.2EQ C3 (3)

Balancing HVAC Systems 13

EQ 6.3 3rd Party Verification 2

Comparison of LEED for Homes VersionsCredit # Credit Name Single Family

(Max. Points)Midrise

(Max. Points)

V 2008 V 4.0 V 2008 V 4.0 V 2008 V 4.0

EQ 7.1 EQ P5 Air Filtering Prereq Prereq

EQ 7.2 Better Filters 1 N/A

EQ 7.3 Best Filters 2 N/A

EQ 8.1 N/A Protect Ducts 1 N/A ???

EQ 8.2EQ C2

Contaminant Control 22

EQ 8.3 Preoccupancy Flush 1

EQ 9.1 EQ P4 Radon Resistant Construction Prereq Prereq

EQ 9.2 N/A Moderate Risk Areas 1 N/A

EQ 10.1 EQ P3 Garage Pollutant Protection Prereq Prereq

EQ 10.2 N/A Minimize Pollutants 2 N/A

EQ 10.3 EQ C6 (1) Exhaust Fan 1 1

EQ 10.4 EQ C6 (2) OR No / Detached Garage 3 2

Comparison of LEED for Homes Versions

Credit # Credit Name Single Family (Max. Points)

Midrise (Max. Points)

V 2008 V 4.0 V 2008 V 4.0 V 2008 V 4.0

EQ 11.1 EQ P6 Limit Exposure to ETS N/A Prereq * 1 Prereq

EQ 12.1 EQ P7 Compartmentalization N/A Prereq * Prereq Prereq

EQ 12.2 EQ C4 Enhanced Compartment’n 1 1

MR 2.2 EQ C7 Low Emitting Products 3 3

Total 21 16 Same Same

Notes: * Applies to attached single family homes and multifamily buildings only Minimum point floor is 3 points. (6 in v2008)

Review: EQQ & A

MR Credit Construction Waste(Review of Prior Webinar ‐ Module 6 on MR)

Question #1:Is the formula in the LH Workbook, MR Tab Cell c106 correct?

(i.e./, c106 = C105/c101)?

Answer:The formula has been fixed, and will be part of the soon to be updated checklist that gets released.

Review: EQQ & A

EQ Prereq Radon Resistant Construction

Question #2:For existing buildings, which duration of radon test is required? Is there a minimum number of days over which the test must be performed?Short term tests are 2‐ 90 days (First Alert sells a 24 hour test for $12); long term tests are > 90 day

Answer:

Short term tests are acceptable (follow manufacturer instructions). All manufacturers do require them to be placed in an area where there will be no outside air present to dilute them.

Review: EQQ & A

EQ Preq and Credit for Compartmentalization

Question #3:Is the Prereq required for all project types, except detached Single family homes? And the credit is available for all project types?

Answer:Yes and Yes

Review: EQQ & A

EQ Credit Compartmentalization

Question #4:In the LH v4 workbook fore this credit, is the formula incorrect? In cell c173, the formula is c172/C171.

AnswerThe formula is reversed and should be c171/c172.

Review: EQQ & A

EQ Credit Balancing Heating and Cooling Distribution SystemsOption 1: Multiple ZonesSingle‐family houses with less than 800 square feet (74 square meters) of conditioned floor area and multifamily buildings whose average unit size is less than 1,200 square feet (110 square meters) automatically meet the requirements of this credit.

Question #5:For this “automatic compliance case”, are the size limits for single family and multifamily homes flipped / reversed?There are virtually no single family homes < 800 Sq Ft; while in contrast, the majority of multifamily buildings have an average unit size of < 1,200 SqFt.

Answer:It’s correct. A larger area for multifamily is allowed because they have a lower heating/cooling load than single family, and thus lower room by room air flows, and subsequently less pressure imbalances.

Innovation (IN)

IN P1 Preliminary Rating IN C1 InnovationIN C3 LEED AP for Homes

Overview of IN / RP

Moved OutIP (3 pts)

Point ChangesIN (new: +1 pt.)

RP (new: 4 pts.)

Total: +5 Points


IN P1 Preliminary Rating

Prerequisite Applies to • Homes & Midrise

Intent • To maximize opportunities for integrative, cost‐effective adoption of green design

and construction strategies.

Requirements • As early as practicable, conduct a preliminary LEED for Homes meeting, with the

participation of the principal members of the verification and project teams. • As part of the meeting, create an action plan that identifies the following:

the targeted LEED award level (Certified, Silver, Gold, or Platinum); the credits that have been selected to meet the targeted award level; and the party accountable for meeting the requirements for each selected credit.

Verification Measure

Participate in Preliminary Rating

Think About It….

When should a Preliminary Rating occur?

a) At conceptual design

b) As early as practicable

c) At 80% design completion

d) Before construction starts

e) All of the above

IN C1 Innovation

Points • Homes (1–5 points) & Midrise (1–5 points)

Intent • To encourage exceptional performance for current credits and promote innovative

performance in pioneering areas.

Requirements • Credit can be achieved through a combination strategies, as described below.

Option 1. Innovation (1 point) AND/OR Option 2. Pilot (1 point) AND/OR Option 3. Additional Strategies (1–3 points)

IN C1 Innovation (cont’d)

Option 1. Innovation (1 point) Achieve significant, measurable environmental performance using a strategy not addressed in the LEED Green Building Rating System. Identify the following in writing: • the intent of the proposed innovation credit; • the proposed requirement for compliance; • the proposed submittals to demonstrate compliance; and • the design approach (strategies) used to meet the requirements.

AND/OR Option 2. Pilot (1 point) • Attempt and achieve one pilot credit from the USGBC’s LEED Pilot Credit Library.

AND/OR Option 3. Additional Strategies (1–3 points) • Innovation (1–3 points) • Pilot (1–3 points) • Exemplary Performance (0.5–2 points)

Achieve exemplary performance in an existing LEED v4 prerequisite or credit that allows exemplary performance, as specified in the LEED Reference Guide, v4 edition. An exemplary performance point is typically earned for achieving double the credit requirements and/or achieving the next incremental percentage threshold of an existing credit.


Verify that all components listed in USGBC‐approved Innovation request are installed;

Total

Credit ExampleInnovation

Credit(v2008)

Name V4 Credit Availabilityin v4

LL 5.3 Community Resources / Public Transit LL C4 Y

SS 5 Nontoxic Pest Control SS C3 Y

SS 6 Density (Low‐Rise Multifamily) LL C3 Y

WE 2.1 Irrigation (Multifamily) WE C1 > 70% Red’n

EA 9.2 Clothes Washer (Cold Water Savings)

WE C2 No

MR 1.4 Panelized Construction(with Advanced Framing)

MR C4 No

MR 2.2 Reuse(Gut Rehab Projects)

MR C2 Y

Commonly Achieved Exemplary Credits in v2008

Pilot Credits

http://www.usgbc.org/leed/tools/pilot‐credits

Think About It….

Of the 5 points available for the Innovation credit, what is the maximum available for exemplary performance?

a) 1 Point

b) 2 Points

c) 3 Points

d) 4 Points

e) All 5 Points

IN C2 LEED AP for Homes

Points • Homes (1 point) & Midrise (1 point)

Intent • To support and encourage the project team integration required by a LEED

project and to streamline the application and certification process.

Requirements Include in the project team at least one principal participant who is a LEED Homes

Accredited Professional (AP).

This team member must have earned the credential before the preliminary rating meeting.

A principal participant is defined as the builder, architect, or green building consultant who has design and/or product specifying responsibilities.

The Green Rater is not considered a principal participant.

Verify that principal member of project team is LEED AP Homes.


Total

Think About It….

Which of the following roles must a LEED AP Homes perform ‐ to achieve the LEED AP Homes credit?

a) Green Consultant

b) Designer / Specifier

c) General Contractor

d) Trade

e) Any of the above

Regional Priority (RP)

RP C1‐C4 Regional Priority

RP C1 Regional Priority

Points • Homes (1–4 points) • Midrise (1–4 points)

Intent • To address geographically specific environmental, social equity, and public health

priorities.

Requirements • Six Regional Priority credits have been identified by the USGBC regional councils

and chapters as having special importance for the project’s region. • A database of these credits and their geographic applicability is available on the

USGBC website, at http://www.usgbc.org. • One point is awarded for each Regional Priority credit achieved, up to a maximum

of four.

http://www.usgbc.org/rpc

http://www.usgbc.org/rpc

RP C1‐C4(for Annapolis, MD)

Credit Name Points Available

Point Threshold

RP Points

Likely?

LL C5 Access to Transit 2 1 1 Urban?

SS C2 Rainwater Management 3 3 1 > 80% Permeable

SS C3 Nontoxic Pest Control 2 2 1 Y

WE C1 Total Water Use 12 9

WE C2 Indoor Water Use 6 4 1 Prescriptive

EA C1 Annual Energy Use 29 15 1 ≤ HERS 58*

EA C5 HVAC Start‐Up Cred. 1 2 1 Homes Only

EA C6 Bldg Orientation/Solar 3 3 Prescriptive

Total 4

* For Mid‐Rise: ≥ 20% Better than Std 90.1‐2010

RP C1‐C4(for Chicago, IL)


Point Threshold

RP Points

Likely?

LL C2 Site Selection 8 4 1 Prev. Developed


WE C1 Total Water Use 12 9

WE C2 Indoor Water Use 6 4 1 Prescriptive

EA C6 Active Solar Ready Design 1 1

EQ C1 Enhanced Ventilation 3 3 1 HRV + Exhaust Fan Timers

EQ C2 Contaminant Control 2 2 Air Testing

Total 4

*

**

*

RP C1‐C4(for Dallas , TX)


Point Threshold

RP Points

Likely?

LL C5 Site Selection 8 5 1 Prev. Developed?


WE C1 Total Water Use 12 8 ≥ 45% Red’n

WE C3 Outdoor Water Use 4 3 1 ≤ 20% Turf

EA C1 Annual Energy Use 29 18 1 ≤ HERS 52*

EA C5 Active Solar Ready Design 1 1

EA C15 Renewable Energy 4 2 Prescriptive

EQ C3 HVAC Balancing 3 3 1 ESH v3

Total 4

* For Mid‐Rise: ≥ 26% Better than Std 90.1‐2010

*

*

**


N/A

Think About It….

Regional Priority Credits are designed to reward a project that:

a) Achieves a minimum performance level.

b) Achieves a performance level that is deemed to be good.

c) Achieves an exceptional performance level.

d) Any of the above.




V 2008 V 4.0 V 2008 V 4.0 V 2008 V 4.0

ID 1.1 IN P1 Preliminary Rating Prereq Prereq Prereq Prereq

ID 1.2 IP C1(1) Integrative Process 1 1 Prereq 1

ID 1.3 IN C3 LEED AP Homes 1 1 1 1

ID 1.4 IP C1 (2) Charrette 1 1 1 1

ID 1.5 EA C6 Bldg. Orientation for Solar 1 3 1 3

ID 1.6 IP C1 (3) Trade Training N/A 1 1 1

ID 2.1MR P1

Durability Planning PrereqPrereq

PrereqPrereq

ID 2.2 Durability Management Prereq Prereq

ID 2.3 MR C1 Durability Verification 3 1 3 1

ID 3 IN C1 Innovation 4 5 4 5

N/A RP C1 Regional Priority N/A 4 N/A 4

Total (IN + RP) 5 10 Same Same

Awareness and Education (AE)

AE

Category no longer exists




V 2008 V 4.0 V 2008 V 4.0 V 2008 V 4.0

AE 1.1 EA P3 Education of Homeowner Prereq Prereq

AE 1.2 IP C1 (1) Enhance Training 1 N/A

AE 1.3 IN C2 Public Awareness 1 N/A

AE 2 IP C1 (2) Education of Bldg. Manager 1 N/A

Total (AE) 0 0 Same Same

Think About It….

Education of a building manager about O&M for LEED for Homes is no longer expected and/or rewarded in v4?

a) True.

b) False.

EA P3 Requirements:Provide to all individuals or organizations responsible for ongoing maintenance of the home (e.g., occupants, building managers, maintenance contractors) an operations and maintenance manual, binder, or CD … and a 1 hour walk‐through.

V4 Process & Related Tools

• Registration• Verification• Submittals• Certification

Process

http://www.usgbc.org/cert‐guide/homes

Tools

http://www.usgbc.org/resources

ToolsInterpretations

http://www.usgbc.org/leed‐interpretations

Think About It….

Where is the best place to go to get answers to a question on the LEED for Homes process?

a) USGBCb) LEED APc) usgbc.org / resourcesd) usgbc.org/cert‐guide/homese) LEED for Homes Provider

Project Examples

• Apply EQ prereqs and credits to a project Single family home Low‐rise multi‐family building Mid‐rise multi‐family building

Project ExampleIN / RP

Credit Description Single Family

Detached

SingleFamily

Attached

Low RiseMF

Mid‐RiseMF

IN P1 Preliminary Rating Prereq

IN C1 Non‐Toxic Pest Ctrl (3/2) 1 / 5

Local Food Production 1/5

IN C2 LEED AP Homes 1/1

RP C1 Non‐Toxic Pest Ctrl (2/2) 1 /4

RP C2 Indoor Water Use (4/6) 1 / 4

RP C3 HVAC Start‐UP 1 / 4 N/A

Total 6 / 10 Same Same 5/10

*

*

Think About it …..

Total IN / RP Points Available: 10

Level % of Max. Goal AchievedCertified 40% 4 pts. Silver 50% 5 pts. 5 Pts ‐ Mid‐RiseGold 60% 6 pts. 6 Pts. ‐ All OthersPlatinum 80% 8 pts.

Summary: Module 8IN / RP / AE

Exemplary Performance

Pilot Credits

Innovation

Regional Priorities

Learning Objectives

Student participants will be able to:• Describe changes in v4 Rating System

from v2008.

• Identify prereqs and credits in the IN / RP category.

• Apply IN / RP prereqs and credits to a project.

• Fill‐out the v4 workbook.

Overview of IN / RP

Moved OutIP (3 pts)

Point ChangesIN (new: +1 pt.)

RP (new: 4 pts.)

Total: +5 Points


Next Module

What’s Next?

Module 9: Scoring of Example Projects

Understanding LEED for Homes v4 - GreenHome Institute · Q & A EQ Credit Balancing Heating and Cooling Distribution Systems Option 1: Multiple Zones Single‐family houses with less

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