Demystifying LEED for Homes v4.0 Jay Hall Jay Hall & Associates, Inc. October 31, 2013 Overview 1. Process Changes 2. Changes 3. Examples 1
Process V4 Roll-Out Schedule 2013 2014 2015 1. 2. 3. 4. 5. 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) Fees See checklist Process Admin. Registration https://www.usgbc.org/leedonline/homes/ Green Raters http://www.usgbc.org/people/green-raters Providers http://www.usgbc.org/organizations/members/homesproviders Certification 2
Process Tools Checklist www.usgbc.org/resources/homes-v2008-checklist-xls http://www.usgbc.org/resources/leed-homes-v2008- current-version http://www.usgbc.org/sites/default/files/leed%20v4%2 0for%20Homes%20and%20Midrise_Ballot%20Version.p df CIRs http://www.usgbc.org/leed-interpretations Reference Guide http://www.usgbc.org/resources/leed-homes-referenceguide USGBC LEED v4 Webinars http://usgbc.peachnewmedia.com/store/seminar/seminar.php?seminar=21420 3
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. 4
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 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 5
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) 1.1 Preliminary Rating IN p1 MOVED 1.2 Integrated Project Team 1.4 Design Charrette IP c1 (1) 1.3 LEED AP Homes IN c2 MOVED SAME / COMBINED NEW Trades Training 1.5 Building Orientation for Solar EA c5 MOVED / CHANGED 2.1 Durability Planning REMOVED 2.2 Durability Management MR p2 2.3 Third Party Durability Verif n MR c1 MOVED / CHANGED ESH v3 3 Innovation #1-4 IN c1 MOVED (5 pts.) RP 1-4 NEW Regional Priority (4 pts.) 6
LT (LL) 1 LEED ND LT c1 (1) CHANGE: 15 Points ADDED: Street Network 2 Site Selection COMBINED 3.1 Edge Development PATH 2: REMOVED LT C2 (8 pts) 3.2 Infill 3.3 Previously Developed PATH 1: (4 pts.) 4 Existing Infrastructure REMOVED 5.1 Basic Community Resources 5.2 Extensive Community Resources 5.3 Outstanding Community Resources 6 Access To Open Space LT c4 LT c5 COMBINED SS 6 Compact Development LT c3 SAME (3 pts.) ADDED: Bicycle Network/Storage NEW: Access to Public Transit SS 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 2.4 Drought Tolerant Plants WE c3 MOVED / COMBINED (Reduced from 5 to 4 pts.) 2.5 Outdoor Water Demand Calc. WE c1 MOVED / CHANGED 3 Local Heat Island Effects SS c1 CHANGED: Includes Roof 7
SS (cont d) 4.1 Permeable Lot 4.2 Permanent Erosion Controls 4.3 Roof-Run-Off (Quality Control) SS c2 COMBINED / CHANGED: Includes Area under Roof (Reduced 7 to 3 pts max.) 5 Non-Toxic Pest Control SS c3 SAME 6.1 Moderate Density 6.2 High Density 6.3 Very High Density LL c3 Moved (Reduced from 4 to 3 pts.) WE 1.1 Rainwater Harvesting 1.2 Graywater Reuse System 1.3 Municipal Recycled Water 2.1 High Efficiency Irrigation System 2.2 Third Party Inspection MOVED: to c1 (below) REMOVED 2.3 Reduce Overall Irrig n Demand MOVED: to c1 (below) 3.1 High Efficiency Fixtures 3.2 Very High Efficiency Fixtures SS 2 Landscaping (Turf / Plants) c3 c2 p1 c1 CHANGED WaterSense NEW: Water Metering NEW: Total Water Use (Reduced from 16 to 12 pts.) CHANGED: Outdoor Water Use ( 60% Turf & 25% Native Plants) (Reduced from 9 to 4 pts. Including Irrigation) 8
EA Prereqs 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 EA p3 Energy Metering (MF: every unit) 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 9
EA (cont d) for Both Performance and Prescriptive Paths EA 7.1 EA 7.2 Hot Water Distribution Pipe Insulation EA c2 CHANGED: New PERF. Test Option COMBINED: (5 pts.) EA c3 EA 11.2 Refrigerant Charge Testing EA c4 EA c5 Active Solar Ready Design (not available if PV installed) HVAC Start-up Credentialing (ESH v3 HVAC Checklist) (+1 Pt.) Advanced Utility Tracking (Option 2: BPP) EA (cont d) Prescriptive Path ID 1.5 Building Orientation for Passive Solar EA c5 2. Insulation EA c7 3 Air Infiltration EA c6 NEW (3 pts.) CHANGED 10/20% > IECC 2012; Grade I SAME (ACH50 or CFM50/SF) 4 Windows EA c8 CHANGED 5 Duct Leakage EA c10 6 HVAC Equipment EA c9 SAME Small AND Large Home Criteria SAME Pts for EE Heating OR EE Cooling 10
EA (cont d) Prescriptive Path 7.3 Water Heating Equipment EA c11 SAME 8 Lighting EA c12 9 Appliances EA c13 10 Renewables EA c14 CHANGED Calcs Required (W/SF, or % Red n) All Exterior Dark Sky Qualified SAME Clothes Washer moved to WE c2 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 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 Low Emitting Products 3.1 Construction Waste Management DELETED CHANGED Fewer Options (4 pts.) MOVED EQ c7 (3 pts.) 3.2 Construction Waste Reduction MR c4 CHANGED Tied to Home Size ID 2.2 Durability Management MR p2 ID 2.3 3 rd Party Durability Verification MR C1 CHANGED ESH v3 Water Mgmt. MOVED Durability Verification (+1 pt.) 11
EQ 1 ENERGY STAR with IAP REMOVED 2.1 Basic Combustion Venting EQ p2 2.2 Enhanced Combustion Venting EQ c5 CHANGED: Fireplace - Closed Combustion OR Combustion Safety Test Same (EPA Qualified 1 Pt.; None 2 Pts.) 3 Moisture Control REMOVED 4.1 Basic Outdoor Air Ventilation EQ p1 4.2 Enhanced Outdoor Air Vent n EQ c1 4.3 Third Party Performance Testing EA p1 CHANGED ASHRAE 62.2-2010 CHANGED Balanced OR HRV/ERV MOVED / COMBINED ESH v3 EQ (cont d) 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 6.1 Room by Room Load Calcs EA p1 6.2 Return Air /Controls EA p1 6.3 Air Balancing EQ c3 MOVED / COMBINED ESH v3 MOVED / COMBINED ESH v3 MOVED / COMBINED ESH v3 ESH v3 (+3 Pts.) 12
EQ (cont d) 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 8.3 Pre-Occcupancy Flush EQ c2 COMBINED: (0.5 Pt. Each) EQ (cont d) 9.1 Radon Resistant (Zone 1) EQ p4 SAME 9.2 Radon Resistant (Zone 2-3) REMOVED 10.1 No HVAC in Garage 10.2 Minimize Pollutants Garage 10.3 Exhaust Fan Garage 10.4 Detached / No Garage EQ p3 EQ c6 COMBINED COMBINED (1 or 2 pts.) 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 13
AE / IN / RP 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 RP MOVED (5 Pts. + 1 Pt. LEED AP Homes) 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 14
Major Changes Removed Prereqs MR 1.1 MR 3.1 Framing Order Waste Factor Limit Construction Waste Planning Major Changes New Prereqs LTp1 WEp1 EA p2 MRp2 EQ p6 EQ p7 Floodplain Avoidance Water Metering Energy Metering Durability Management (ESH v3 Water Management) ETS (Multi-Family only) Compartmentalization (0.23 cfm50 / Sq. Ft.) 15
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 Major Changes ESH V3 Related Changes (-3 pts. net) EA p1 Includes: EA 11.1 EQ 4.3 EQ 5.3 EQ 6.1 Refrig Charge Testing OA Testing Exhaust Testing Manual D And Three New Credits: EA c4 MR p2/c1 HVAC Start-Up Credentials Durability Mgmnt & Verification EQ 6.3 Air Balancing (EQ c3: 3 pts) 16
Major Changes New Credits LTc2 WEc1 EA c3 EA c4 EAc5 RP Bicycle Network/Storage (1 Pt.) Total Water Use (12 Pts.) Solar Ready Design (1 Pt.) HVAC Start Up Credentialing (1 Pt.) Advanced Utility Tracking (1 Pt.) Regional Priority (4 Pts.) Major Changes New Credits: Low-Rise Multi-Family Up Front Trade Training (1 Pt.) LTc5 EQ p6 EQc4 Access to Transit (2 Pts.) ETS Enhanced Compartmentalization (1 Pt.) 17
Example Scenarios Examples High Level Comparisons (Normalized Scores) Building Type Market Location 2008 v4 Single Family Low-Rise Multi-Family Mid-Rise Multi-Family Affordable Sub-Urban Gold 55/60 Production Sub-Urban Silver 37/50 Custom Rural Gold 43/60 Affordable Urban Gold 63/60 Market Urban Gold 51/60 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. 18
Example Good News Small (Affordable) Urban Project Prereqs 17 LT 15 Pts. SS c3 1 Pt. (Pest Control: 2/12) WE c2 EA p4 EA c4 EA c12/13 EQ c2 EQ c6 Total 5 Pts. (Low Flow) 10 Pts. (Home Size) 1 Pt. (HVAC Credential, ESH) 4 Pts. (ENERGY STAR L&A) 2 Pts. (No Fireplace) 2 Pts. (No Garage) 40 Pts. (Certified) 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 EA p4 EA c4 EA c12/13 EQ c2 EQ c6 Total 5 Pts. (Low Flow) - 10 Pts. (Home Size) 1 Pt. (HVAC Credential, ESH) 4 Pts. (ENERGY STAR L&A) 0 Pts. (Fireplace) 0 Pts. (Garage) 1 Pt. (Not Certified) 19
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 20
Thank You Questions? 21