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Demystifying LEED for Homes

v4.0

Jay Hall

Jay Hall & Associates, Inc.

October 31, 2013

Overview

1. Process Changes

2. Rating System Changes

3. Examples

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Process V4 Roll-Out Schedule

1. Immediately Can begin to use V4

2. Nov/Dec 2013 v4 Resources Available

3. Jan 2014 EA 1 Ballot (HERS 70 max.)

4. Spring 2014 EA 1 Required

5. Summer 2015 V4 Required (2008 phased out)

1.

2013 2014 2015

2. 3. 4. 5.

Process Admin.

Fees See checklist

Registration https://www.usgbc.org/leedonline/homes/

Green Raters http://www.usgbc.org/people/green-raters

Providers http://www.usgbc.org/organizations/members/homes-providers

Certification

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Process Tools

Checklist www.usgbc.org/resources/homes-v2008-checklist-xls

‎Rating System http://www.usgbc.org/resources/leed-homes-v2008-current-version

http://www.usgbc.org/sites/default/files/LEED%20v4%20for%20Homes%20and%20Midrise_Ballot%20Version.pdf

CIRs http://www.usgbc.org/leed-interpretations

Reference Guide http://www.usgbc.org/resources/leed-homes-reference-guide

USGBC LEED v4 Webinars http://usgbc.peachnewmedia.com/store/seminar/seminar.php?seminar=21420

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Rating System Basic Structure

General Changes

1. 110 Points Total (from 136)

2. Credit names are familiar

3. Order (numbering) is very different

a. Prereqs are pulled out front (p1, p2, etc.)

b. Credits follow (c1, c2, etc.)

4. Single Family, Low-Rise and Mid-Rise are Combined.

5. Bottom Line: Projects will lose one certification level.

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Rating System Basic Structure

Certification Levels (% of Total Points) 2008 V 4.0 S / M / L S / M / L

Certified 26%/33%/40% 27%/36%/45%

Silver 36%/43%/51% 36%/45%/54%

Gold 48%/55%/62% 45%/54%/63%

Platinum 59%/66%/73% 63%/72%/82%

S = 950 Sq. Ft., 2 Bedroom

M = 1,900 Sq. Ft., 3 Bedroom

L = 3,820 Sq. Ft., 4 Bedroom

Rating System Basic Structure

Credit Categories

2008 v 4.0 Pts/Prereq/Min Pts/Prereq/Min

ID 11 / 3 / Moved LL 10 / / LT 15 / / 8 (LT+EA) SS 22 / 2 / 5 SS 7 / 2 / WE 15 / / 3 WE 12 / 1 / 3 EA 38 / 2 / EA 38 / 4 / MR 16 / 3 / 2 MR 10 / 2 / EQ 21 / 7 / 6 EQ 16 / 7 / 3 AE 3 / 1 / Gone Innov. 6 / 1 / RP 4 / / Total 136 / 18 / 16 110 / 17 / 14

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How Many Changes? Credit

Category 2008 Removed Version 4.0

Total # Measures

Same Moved Changed New Total #

Measures

ID (IN) 11 1 6 2 (Top,EA) 3 7

LL (LT) 10 2 5 3 1 7

SS 15 2 3 (LT,WE) 5

WE 8 4 1 3 1 4

EA 6 2 3 5 9

MR 9 4 4 1 (EQ) 1 6

EQ 25 9 10 6 3 14

AE 4 3 1(EA) 0

Total 107 27 29 7 16 10 60

ID (IN/RP) 2008 Version 4

# Name # Comment

1.1 Preliminary Rating IN p1 MOVED

1.2 Integrated Project Team

IP c1 (1) SAME / COMBINED

1.4 Design Charrette

NEW Trades Training

1.3 LEED AP Homes IN c2 MOVED

1.5 Building Orientation for Solar EA c5 MOVED / CHANGED

2.1 Durability Planning REMOVED

2.2 Durability Management MR p2 MR c1

MOVED / CHANGED ESH v3 2.3 Third Party Durability Verif’n

3 Innovation #1 - 4 IN c1 MOVED (5 pts.)

RP 1-4 NEW Regional Priority (4 pts.)

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LT (LL) 2008 Version 4

# Name # Comment

1 LEED ND LT c1 (1) CHANGE: 15 Points

2 Site Selection

LT C2

COMBINED PATH 2: (8 pts)

ADDED: Street Network

3.1 Edge Development REMOVED

3.2 Infill ADDED: Bicycle Network/Storage

3.3 Previously Developed PATH 1: (4 pts.)

4 Existing Infrastructure REMOVED

5.1 Basic Community Resources

LT c4 COMBINED 5.2 Extensive Community Resources

5.3 Outstanding Community Resources

6 Access To Open Space

LT c5 NEW: Access to Public Transit

SS 6 Compact Development LT c3 SAME (3 pts.)

SS 2008 Version 4

# Name # Comment

1.1 Erosion Controls – Construction SS p1 SAME (except > 1 acre)

1.2 Minimized Disturbed Area REMOVED

2.1 No Invasive Plants SS p2 SAME

2.2 Landscaping REMOVED

2.3 Limit Turf WE c3

MOVED / COMBINED (Reduced from 5 to 4 pts.)

2.4 Drought Tolerant Plants

2.5 Outdoor Water Demand Calc. WE c1 MOVED / CHANGED

3 Local Heat Island Effects SS c1 CHANGED: Includes Roof

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SS (cont’d) 2008 Version 4

# Name # Comment

4.1 Permeable Lot

SS c2 COMBINED / CHANGED: Includes Area under Roof (Reduced 7 to 3 pts max.)

4.2 Permanent Erosion Controls

4.3 Roof-Run-Off (Quality Control)

5 Non-Toxic Pest Control SS c3 SAME

6 .1 Moderate Density

LL c3 Moved (Reduced from 4 to 3 pts.)

6.2 High Density

6.3 Very High Density

WE

2008 Version 4

# Name # Comment

1.1 Rainwater Harvesting

MOVED: to c1 (below) 1.2 Graywater Reuse System

1.3 Municipal Recycled Water

2.1 High Efficiency Irrigation System REMOVED

2.2 Third Party Inspection

2.3 Reduce Overall Irrig’n Demand MOVED: to c1 (below)

3.1 High Efficiency Fixtures c2

CHANGED WaterSense 3.2 Very High Efficiency Fixtures

p1 NEW: Water Metering

c1 NEW: Total Water Use (Reduced from 16 to 12 pts.)

SS 2 Landscaping (Turf / Plants) c3

CHANGED: Outdoor Water Use (≤ 60% Turf & ≥ 25% Native Plants) (Reduced from 9 to 4 pts. Including Irrigation)

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EA Prereqs

2008 Version 4

# Name # Comment

1.1 Meet ENERGY STAR Homes v2 EA p1 CHANGED: ESH v3

1.2 Exceed ENERGY STAR Homes v2 EA c1 CHANGED: ESH v3

EA p2 Energy Metering (MF: every unit)

EA p3 MOVED: from AE 1.1 Education of Homeowner

EA Performance Path

Option 1: LEED Energy Budget (MBtu/yr) Modeled annual energy usage < LEED Energy Budget

where: LEED Energy Budget is based on the ENERGY STAR for Homes version 3 (with several modifications).

1 Point per 1-3% < ESH v3

Option 2: HERS Index w/ Home Size Adj. Modeled annual energy usage < HERS 75

1 Point per 1-3 HERS Index Points < 75 Home Size Adjuster:

+1 point per 4% decrease in CFA < ESH v3 benchmark home

-1 point per 4% increase in CFA > ESH v3 benchmark home

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EA (cont’d) for Both Performance and Prescriptive Paths

2008 Version 4

# Name # Comment

EA 7.1 Hot Water Distribution

EA c2

CHANGED: New PERF. Test Option

COMBINED: (5 pts.)

EA 7.2 Pipe Insulation

EA c3 Active Solar Ready Design (not available if PV installed)

EA 11.2 Refrigerant Charge Testing EA c4 HVAC Start-up Credentialing (ESH v3 HVAC Checklist) (+1 Pt.)

EA c5 Advanced Utility Tracking (Option 2: BPP)

EA (cont’d) Prescriptive Path

2008 Version 4

# Name # Comment

ID 1.5 Building Orientation for Passive Solar

EA c5 NEW (3 pts.)

2. Insulation EA c7 CHANGED 10/20% > IECC 2012; Grade I

3 Air Infiltration EA c6 SAME (ACH50 or CFM50/SF)

4 Windows EA c8 CHANGED

5 Duct Leakage EA c10 SAME Small AND Large Home Criteria

6 HVAC Equipment EA c9 SAME Pts for EE Heating OR EE Cooling

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EA (cont’d) Prescriptive Path

2008 Version 4

# Name # Comment

7.3 Water Heating Equipment EA c11 SAME

8 Lighting EA c12 CHANGED Calcs Required (W/SF, or % Red’n) All Exterior – Dark Sky Qualified

9 Appliances EA c13 SAME Clothes Washer moved to WE c2

10 Renewables EA c14 CHANGED 1 pt per 50 KWh (Reduced from 10 to 4 pts. max.)

11.1 Refrigerant Charge Test EA p1 COMBINED: ESH v3

11.2 Refrigerant – R 410a (Puron) DELETED

MR 2008 Version 4

# Name # Comment

1.1 Framing Order Waste Limit DELETED

1.2 Detailed Framing Docs DELETED

1.3 Detail Cut List & Lumber Order DELETED

1.4 Framing Efficiencies MR c2 CHANGED (Reduced: 4 to 2 pts.)

1.5 Off-Site Fabrication DELETED

2.1 FSC Tropical Wood MRp1 SAME

2.2 Envir. Preferable Products MRc3 CHANGED Fewer Options (4 pts.)

Low Emitting Products MOVED EQ c7 (3 pts.)

3.1 Construction Waste Management DELETED

3.2 Construction Waste Reduction MR c4 CHANGED Tied to Home Size

ID 2.2 Durability Management MR p2 CHANGED ESH v3 Water Mgmt.

ID 2.3 3rd Party Durability Verification MR C1 MOVED Durability Verification (+1 pt.)

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EQ 2008 Version 4

# Name # Comment

1 ENERGY STAR with IAP REMOVED

2.1 Basic Combustion Venting EQ p2 CHANGED: Fireplace - Closed Combustion OR Combustion Safety Test

2.2 Enhanced Combustion Venting EQ c5 Same (EPA Qualified 1 Pt.; None 2 Pts.)

3 Moisture Control REMOVED

4.1 Basic Outdoor Air Ventilation EQ p1 CHANGED ASHRAE 62.2-2010

4.2 Enhanced Outdoor Air Vent’n EQ c1 CHANGED Balanced OR HRV/ERV

4.3 Third Party Performance Testing EA p1 MOVED / COMBINED ESH v3

EQ (cont’d)

2008 Version 4

# Name # Comment

5.1 Basic Local Exhaust EQ p1 COMBINED: 4.1

5.2 Enhanced Local Exhaust EQ c5 COMBINED: 4.2

5.3 Third Party Performance Testing EA p1 MOVED / COMBINED ESH v3

6.1 Room by Room Load Calcs EA p1 MOVED / COMBINED ESH v3

6.2 Return Air /Controls EA p1 MOVED / COMBINED ESH v3

6.3 Air Balancing EQ c3 ESH v3 (+3 Pts.)

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EQ (cont’d)

2008 Version 4

# Name # Comment

7.1 Good Filters EQ p5 SAME (MERV 8)

7.2 Better Filters REMOVED

7.3 Best Filters REMOVED

8.1 Contaminant Control – Ducts REMOVED

8.2 Indoor Contaminant Control EQ c2

COMBINED: (0.5 Pt. Each)

8.3 Pre-Occcupancy Flush

EQ (cont’d)

2008 Version 4

# Name # Comment

9.1 Radon Resistant (Zone 1) EQ p4 SAME

9.2 Radon Resistant (Zone 2-3) REMOVED

10.1 No HVAC in Garage EQ p3 COMBINED

10.2 Minimize Pollutants – Garage

10.3 Exhaust Fan Garage EQ c6 COMBINED (1 or 2 pts.)

10.4 Detached / No Garage

11 ETS Control EQ p6 (LR and MR Multi-family only)

12 Compartmentalization EQ p7 EQ c4

CHANGED: 0.23 cfm50 / SF 0.15 cfm50 / SF

MR 2.2 Low Emission Products EQ c7 MOVED

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AE / IN / RP

2008 Version 4

# Name # Comment

1.1 Homeowner Education O&M Manual and Training

EA p3 MOVED

1.2 Enhanced Training REMOVED

1.3 Public Awareness REMOVED

2 Education of Building Mgr. MOVED / COMBINED EA p3 (above)

IN MOVED (5 Pts. + 1 Pt. LEED AP Homes)

RP NEW (4 Pts.)

Example Regional Points Vary Regionally

LT c2 Site Selection > 5 / 8 pts. LT c3 Compact Development LT c5 Access to Transit > 1 / 2 pts. SS c3 No Toxic Pest Control EA c1 Exceed ESH v3 > 15 / 29 pts. EA c3 Advanced Energy Tracking EA c6 Building Orientation for Solar

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Rating System Major Changes

Removed Prereqs

MR 1.1 Framing Order Waste Factor Limit

MR 3.1 Construction Waste Planning

Rating System Major Changes

New Prereqs

LTp1 Floodplain Avoidance

WEp1 Water Metering

EA p2 Energy Metering

MRp2 Durability Management (ESH v3 Water Management)

EQ p6 ETS (Multi-Family only)

EQ p7 Compartmentalization (0.23 cfm50 / Sq. Ft.)

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Rating System Major Changes

Removed Credits (-21 Points) LL 3.1 Edge Development

LL 4 Existing Infrastructure

SS 2.2 Basic Landscape Design

WE 2 High Efficiency Irrigation System

MR 1.2/1.3 Detail Framing Docs / Cut List

EQ 3 Moisture Load Control

EQ 7.2/.3 Better / Best Air Filters

EQ 8.1 Indoor Contaminants at Construction

EQ 10.2 Minimize Pollutants from Garage

AE 1.2/1.3 Enhanced Training / Public Awareness

AE 2 Education of the Building Manager

Rating System Major Changes

ESH V3 Related Changes (-3 pts. net) EA p1 Includes:

EA 11.1 Refrig Charge Testing

EQ 4.3 OA Testing

EQ 5.3 Exhaust Testing

EQ 6.1 Manual D

And Three New Credits:

EA c4 HVAC Start-Up Credentials

MR p2/c1 Durability Mgmnt & Verification

EQ 6.3 Air Balancing (EQ c3: 3 pts)

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Rating System Major Changes

New Credits

LTc2 Bicycle Network/Storage (1 Pt.)

WEc1 Total Water Use (12 Pts.)

EA c3 Solar Ready Design (1 Pt.)

EA c4 HVAC Start Up Credentialing (1 Pt.)

EAc5 Advanced Utility Tracking (1 Pt.)

RP Regional Priority (4 Pts.)

Rating System Major Changes

New Credits: Low-Rise Multi-Family Up Front Trade Training (1 Pt.)

LTc5 Access to Transit (2 Pts.)

EQ p6 ETS

EQc4 Enhanced Compartmentalization (1 Pt.)

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Example

Scenarios

Rating System Examples

High Level Comparisons (Normalized Scores)

Building Type Market Location 2008 v4

Single Family

Affordable Sub-Urban Gold 55/60

Production Sub-Urban Silver 37/50

Custom Rural Gold 43/60

Low-Rise Multi-Family

Affordable Urban Gold 63/60

Market Urban Gold 51/60

Mid-Rise Multi-Family

Affordable Urban Gold 47/60

Market Urban Gold 48/60

* V4 Certification Thresholds: 40 / 50 / 60 / 80

** Red Text indicates more than one cert level drop.

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Example Good News

Small (Affordable) Urban Project Prereqs 17

LT 15 Pts.

SS c3 1 Pt. (Pest Control: 2/12)

WE c2 5 Pts. (Low Flow)

EA p4 10 Pts. (Home Size)

EA c4 1 Pt. (HVAC Credential, ESH)

EA c12/13 4 Pts. (ENERGY STAR L&A)

EQ c2 2 Pts. (No Fireplace)

EQ c6 2 Pts. (No Garage)

Total 40 Pts. (Certified)

Rating System A Little Scary

Large (Custom) Non-Urban Project Prereqs 17

LT 3 Pts. (Avoid Sensitive Sites)

SS c3 1 Pt. (Pest Control: 2/12)

WE c2 5 Pts. (Low Flow)

EA p4 - 10 Pts. (Home Size)

EA c4 1 Pt. (HVAC Credential, ESH)

EA c12/13 4 Pts. (ENERGY STAR L&A)

EQ c2 0 Pts. (Fireplace)

EQ c6 0 Pts. (Garage)

Total 1 Pt. (Not Certified)

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Summary Credit

Category 2008 Removed Version 4.0

Total # Measures

Same Moved Changed New Total #

Measures

ID (IN) 11 1 6 2 (Top,EA) 3 7

LL (LT) 10 2 5 3 1 7

SS 15 2 3 (LT,WE) 5

WE 8 4 1 3 1 4

EA 6 2 3 5 9

MR 9 4 4 1 (EQ) 1 6

EQ 25 9 10 6 3 14

AE 4 3 1(EA) 0

Total 107 27 29 7 16 10 60

Summary (cont’d)

Most Beneficial Changes (Points)

LT 1-5 15 Points Available (+5 pts.)

RP 1-4 Regional Priority Points (+4 pts.)

EA c2 DHW Distribution (+3 pts.)

Most Challenging Changes (Extra Effort)

EA p1 ENERGY STAR for Homes (documentation)

EA c1 < HERS 75 for Low-Rise Multifamily Projects

WE c1 Calculation Required for “Total Water Use”

EA c12 Calculation Required EE Lighting

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Thank You

Questions?