Intro to LEED for Homes v4.0

Transcription

1 Intro to LEED for Homes v4.0 Jay Hall Jay Hall & Associates, Inc. March 18, 2015

2 Education Provider Formerly

3 Founded 2000 LEED for Homes Provider 501(c)3 non-profit; mission: We exist to empower people to make healthier and more sustainable choices in the renovation and construction of the places we live. GreenHomeInstitute.org

4 Moderator Brett Little, LFA,APH,GHP Executive Director GreenHome Institute Grand Rapids, MI 888 LEED APH ext 1

5 Understanding LEED V4 Homes Series On Demand Webinar Series Coupon Code Available 9 GBCI (LEED H) AIA (HSW) NARI Green Greenhomeinstitute.org Education

6 Introduction Jay Hall Born in Windsor, Ontario, Canada Married with two boys Live in Annapolis, MD PhD, Duke University, Mech. Eng. Consultant to EPA s ENERGY STAR programs ( ). USGBC consultant since 2004 LEED AP Homes, LEED for Homes Green Rater, LEED Faculty (former) HERS Energy Rater, NGBS Green Verifier

7 Learning Objectives At the end of this webinar, you will be able to describe these aspects of LEED for Homes v 4.0: 1. The timeline for the roll-out. 2. The certification process and tools. 3. The major changes in the prereqs and credits. 4. Generally, how projects will score. 5. Where to learn more.

8 Agenda 1. Overview- Summary of Changes 2. Process Changes 3. Rating System Changes 4. Example Applications 5. Summary / Wrap Up

9 1. Overview

10 Why Change? Raise the Bar Rapidly changing codes Align Requirements Between single family and multifamily Homes and NC New Market Sectors Mid-rise residential projects. (Required for 4-8 Story Projects) New Impact Categories (used for credit weightings) Climate change, human health, water resources, biodiversity, green economy, community and natural resources.

11 Why Change? (cont d) Improved Tools and Resources Step-by-step reference guide materials with videos and tutorials, Improved technology platform. Eliminate paperwork heavy credits Removed Durability Evaluation and New Durability Checklist Removed Accountability Forms Removed MR 1.1 Prereq: Framing Order Waste Factor Focus on Performance Based Credits w/ Consumption Metrics Water Budget, Metering Energy Budget, Metering, Utility Tracking

12 What s New and Different? # Measures v2008 Total % Same 17 16% Moved 22 Changed 38 84% Removed 21 Version 4 Total % New 16 24%

13 2. Process Changes

14 Process (Verifier s POV) Register Project Start-Up Tasks Verify Project (Pre- Drywall) Verify Projects (Final) USGBC Certifies Project Key Tasks Key Tasks Key Tasks Key Tasks Key Tasks Select Green Rater (and QA Provider) Identify Certification Program(s) of Interest Assess Costs & Incentives Pay USGBC Registration Fees Durability Plan Preliminary Rating Trade Training Scopes of Work Owner s Manual Assign Accountability Forms Air Sealing Verification Insulation Verification Review Manual J&D Visual Verification Duct Leakage Test Prepare Rough Documentation Blower Door Test Air Balancing Other Testing Visual Verification Compile Signed Accountability Forms Prepare Submittal Documentation Submit Package to USGBC for Review and Approval Resolve Questions Receive Approval Distribute Certificates Execute Contracts

15 Process V4 Roll-Out Schedule Immediately Can begin to use V4 2. Jan 2014 v4 Resources Available 3. October 1, 2014 EA 1 (Max. HERS 70) Required 4. October 1, 2016 V4 Required (2008 phased out)

16 LEED for Homes Registration

17 Process Tools Checklist Rating System current-version or%20homes%20and%20midrise_ballot%20version.pdf CIRs Reference Guide

18 v 4 Checklist

19

20

21 Guide to Certification (8 Pages)

22 Reference Guide Hard Copy $ 249 (includes 90 days access to web-based version) Web Based $ 99 (1 Year Subscription)

23 3. Rating System

24 General Changes Rating System Basic Structure 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.

25 Certification Levels Rating System Basic Structure (% of Total Points) 2008 V 4.0 S / M / L S / M / L Certified 26%/33%/40% 27%/36%/45% Only 26%! 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

26 Credit Categories Rating System Basic Structure 2008 v 4.0 Pts/Prereq/Min Pts/Prereq/Min ID 11 / 3 / Moved LL 10 / / LT 15 / / 8 (LT+EA) Must Do s: SS 22 / 2 / 5 SS 7 / 2 / WE 15 / / 3 WE / Prereqs 1 / 3 EA 38 / 2 / EA 38 / 4 and / MR 16 / 3 / 2 MR Pts. / 2 Minimum / EQ 21 / 7 / 6 EQ 16 / 7 / 3 AE 3 / 1 / Gone Innov. 6 / 1 / RP 4 / / Total: 136 / 18 / / 17 / 14

27 Summary Credit Category 2008 Removed Version 4.0 Total # Measures Same Moved Changed / Combined New Total # Measures ID (IN) LL (LT) SS WE EA MR EQ AE Total

28 Innovation and Design (ID) 12 v v4 Measures

29 ID IP/IN/RP 2008 Version 4 # Name # Comment 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.)

30 Location and Linkages (L 10 v v4 Measures ( 1 New

31 LL LT 2008 Version 4 # Name # Comment 1 LEED ND LT c1 (1) CHANGE: 15 Points NEW: Flood Plain Prereq. 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 NEW: Bicycle Storage,Street Network 5.2 Extensive Community Resources 5.3 Outstanding Community Resources LT c4 CHANGED / COMBINED 6 Access To Open Space LT c5 NEW: Access to Public Transit SS 6 Compact Development LT c3 MOVED / SAME (3 pts.)

32 Sustainable Sites (SS) 15 v v4 Measures

33 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 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

34 SS (cont d) 2008 Version 4 # Name # Comment 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.)

35 Water Efficiency (WE) 8 v v4 Measures (1 New Prereq)

36 WE 2008 Version 4 # Name # Comment 1.1 Rainwater Harvesting 1.2 Graywater Reuse System MOVED: to c1 (below) 1.3 Municipal Recycled Water 2.1 High Efficiency Irrigation System 2.2 Third Party Inspection REMOVED 2.3 Reduce Overall Irrig n Demand MOVED: to c1 (below) 3.1 High Efficiency Fixtures 3.2 Very High Efficiency Fixtures c2 CHANGED WaterSense SS 2 Landscaping (Turf / Plants) c3 p1 c1 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)

37 Energy and Atmosphere (EA) 25 v v4 Measures (1 New Prereq)

38 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 EA p3 Energy Metering (MF: every unit) MOVED: from AE 1.1 Education of Homeowner V 2.0 V 3.0

39 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 70 1 Point per 1-3 HERS Index Points < 70 Plus Home Size Adjuster (counted as EA points): +1 point per 4% decrease in CFA < ESH v3 benchmark home -1 point per 4% increase in CFA > ESH v3 benchmark home `

40 EA (cont d) for Both Performance and Prescriptive Paths 2008 Version 4 # Name # Comment 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) CHANGED: HVAC Start-up Credentialing (ESH v3 HVAC Chklst) (+1 Pt.) Advanced Utility Tracking (Option 2: BPP)

41 EA (cont d) Prescriptive Path 2008 Version 4 # Name # Comment 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

42 EA (cont d) Prescriptive Path 2008 Version 4 # Name # Comment 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 v Refrigerant R 410a (Puron) REMOVED

43 Materials and Resources (MR) 9 v v4 Measures (1 New Prereq)

44 MR 2008 Version 4 # Name # Comment 1.1 Framing Order Waste Limit REMOVED 1.2 Detailed Framing Docs REMOVED 1.3 Detail Cut List & Lumber Order REMOVED 1.4 Framing Efficiencies MR c2 CHANGED (Reduced: 4 to 2 pts.) 1.5 Off-Site Fabrication REMOVED 2.1 FSC Tropical Wood MRp1 SAME 2.2 Envir. Preferable Products MRc3 Low Emitting Products 3.1 Construction Waste Management REMOVED 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 rd Party Durability Verification MR C1 CHANGED ESH v3 Water Mgmt. MOVED Durability Verification (+1 pt.)

45 Indoor Environmental Quality (EQ) 26 v v4 Measures (2 New Prereq)

46 EQ 2008 Version 4 # Name # Comment 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 CHANGED Balanced OR HRV/ERV MOVED / COMBINED ESH v3

47 EQ (cont d) 2008 Version 4 # Name # Comment 5.1 Basic Local Exhaust EQ p1 MOVED / COMBINED: Enhanced Local Exhaust EQ c1 MOVED / COMBINED: 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 SAME / ESH v3 (+3 Pts.)

48 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 8.2 Indoor Contaminant Control 8.3 Pre-Occcupancy Flush EQ c2 COMBINED: (0.5 Pt. Each)

49 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 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 NEW / (Low- and Mid-Rise only) 12 Compartmentalization EQ p7 EQ c4 NEW/ CHANGED: 0.23 cfm50 / SF (MF and Attached) 0.15 cfm50 / SF MR 2.2 Low Emission Products EQ c7 MOVED

50 Awareness and Education (AE) 4 v v4 Measures

51 AE Removed Plus, 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 RP MOVED (5 Pts. + 1 Pt. LEED AP Homes) NEW (4 Pts.)

52 Example Regional Points Vary Regionally LT c5 Access to Transit 1 / 2 pts. SS c3 Non Toxic Pest Control WE c2 Indoor Water Use EA c1 Exceed ESH v3 4 / 6 pts. 15 / 29 pts. EA c4 HVAC Start-Up Credentialing EA c6 Building Orientation for Solar

53 Let s Review: Rating System Major Changes Removed Prereqs MR 1.1 MR 3.1 Framing Order Waste Factor Limit Construction Waste Planning

54 Let s Review: Rating System Major Changes New Prereqs LTp1 Floodplain Avoidance WEp1 EA p2 MRp2 EQ p6 EQ p7 Water Metering Energy Metering Durability Management (ESH v3 Water Management) ETS (Multi-Family only) Compartmentalization (0.23 cfm50 / Sq. Ft.)

55 Let s Review: Rating System Major Changes Removed Credits (-21 Points) LL 3.1 LL 4 SS 2.2 WE 2 MR 1.2/1.3 EQ 3 EQ 7.2/.3 EQ 8.1 EQ 10.2 AE 1.2/1.3 AE 2 Edge Development Existing Infrastructure Basic Landscape Design High Efficiency Irrigation System Detail Framing Docs / Cut List Moisture Load Control Better / Best Air Filters Indoor Contaminants at Construction Minimize Pollutants from Garage Enhanced Training / Public Awareness Education of the Building Manager

56 Rating System 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)

57 Rating System Major Changes New Credits LTc2 WEc1 EA c3 EA c4 EAc5 IN c1 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.) Innovation (+1 pt) Regional Priority (4 Pts.)

58 Let s Review: Rating System Major Changes New Credits: Low-Rise Multi-Family Up Front LTc5 EA p2 EQ p6 EQc4 Trade Training (1 Pt.) Access to Transit (2 Pts.) Energy Metering (every unit) ETS Environmental Tabacco Smoke Enhanced Compartmentalization (1 Pt.) Also, applies to Attached Homes

59 4. Example Applications

60 Example Applications (cont d) High Level Comparisons Building Type Market Location 2008 v4 Single Family Low-Rise Multi-Family Mid-Rise Multi-Family Affordable Sub-Urban Gold Silver Production Sub-Urban Silver Not Certified Custom Rural Gold Certified Affordable Urban Gold Gold Market Urban Gold Silver Affordable Urban Gold Certified Market Urban Gold Certified 1 2 * V4 Certification Thresholds: 40 / 50 / 60 / 80 ** Red Text indicates more than one cert level drop.

61 Example Application #1 Small (Affordable) Urban Project Prereqs 17 LT SS c3 WE c2 15 Pts. 1 Pt. (Pest Control) 3 Pts. (Low Flow) EA p4 15 Pts. (10 pts Home Size; +5 pts = HERS 70) EA c4 EQ c2 EQ c3 EQ c6 Total 1 Pt. (HVAC Credential, ESH) 2 Pts. (No Fireplace) 2 Pts. (Air-Balancing) 2 Pts. (No Garage) 41 Pts. (Certified)

62 Example Application #2 Large (Custom) Non-Urban Project Prereqs 17 LT 3 Pts. (Avoid Sensitive Sites) SS c3 1 Pt. (Pest Control: 2/12) WE c2 3 Pts. (Low Flow) EA p4-5 Pts. (-10 = Home Size, +5 = HERS 70) EA c4 EQ c2 EQ c3 EQ c6 Total 1 Pt. (HVAC Credential, ESH) 0 Pts. (Fireplace) 2 Pts. (Air Balancing) 0 Pts. (Garage) 5 Pts. (Not Certified)

63 Next Steps Learn More About v4.0 Overview of LEED v LT and SS 17?threadId= WE and MR EA EQ, IN, ID, and RP = &nid= AND, look for the Nine-Part GHI Webinar on LEED v4.0

64 Agenda for GHI s Nine Part LH v4 Workshop Module 1 Overview- Summary of Changes IP / LT Tools Module 2 SS Module 3 WE Module 4 EA Prescriptive Module 5 EA - Performance Module 6 MR Module 7 EQ Module 8 IN / RP / AE / Process Module 9 Activity - Low Rise Activity - Mid-Rise Summary / Next Steps

65 5. Summary / Wrap-Up

66 Summary / Wrap-Up Credit Category 2008 Removed Version 4.0 Total # Measures Same Moved Changed / Combined New Total # Measures ID (IN) LL (LT) SS WE EA MR EQ AE Total

67 Summary /Wrap Up (cont d) Most Beneficial Changes (Points) LT 1-5 RP 1-4 EA c2 15 Points Available (+5 pts.) Regional Priority Points (+4 pts.) DHW Distribution (+3 pts.) Most Challenging Changes (Extra Effort) WE EA p1 EA p2 WE c1 EA c12 Min. Point Floor = 3 points (New gpm/gpf specs) ENERGY STAR for Homes (documentation) MF: Submetering Calculation Required for Total Water Use Calculation Required EE Lighting

68 Summary / Wrap-Up (Cont d) Non-Urban Projects Min. Point Floor = 8 (LT+EA) 8 EA points (LT = 0): Single family HERS 67 (Avg Size) Low-Rise HERS 70 (w/hsa) Mid-Rise 26% Std OR Use LEED Energy Budget Approach

69 Our Environment Thank You

70 Understanding LEED V4 Homes Series On Demand Webinar Series Coupon Code Available 9 GBCI (LEED H) AIA (HSW) NARI Green Greenhomeinstitute.org Education