Understanding LEED for Homes v4

Transcription

1 Understanding LEED for Homes v4 A Nine Part Series Module #8: IN/RP

2 Continuing Education 1 Hour per course 9 Hours total Local Contractor/Architect may be applicable

3 USGBC Education Provider Formerly

4 Founded 2000 Midwest 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."

5 Moderator Brett Little, LFA,APH,GHP Executive Director GreenHome Institute Grand Rapids, MI

6 Agenda Module 8 Review of Module 7 (EQ) IN RP AE Process / Tools Project Example Review / Next Module

7 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.

8 Review: Module 7 Environmental Quality (EQ) Indoor Pollutants >> Outdoor Pollutants??

9 Indoor Environmental Quality (EQ) Seven Prereqs Eight Credits Mid Rise Only

10 Review: Overview of EQ New Prereqs EQ P1 Ventilation (Std ) 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 In MR 2.2 Low Emitting Products Total Points From 22 to 16 Don t be Afraid of Change

11 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 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 3 rd 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 3 rd Party Verification 1 N/A EQ 6.1 EA P1 Room by Room Load Calc Prereq Prereq EQ 6.2 Balancing HVAC Systems 1 EQ C3 (3) EQ rd Party Verification 2 3

12 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 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 8.2 Contaminant Control 2 EQ C2 EQ 8.3 Preoccupancy Flush 1 2 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

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

14 Review: EQ Q & 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.

15 Review: EQ Q & 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.

16 Review: EQ Q & 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

17 Review: EQ Q & 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. Answer The formula is reversed and should be c171/c172.

18 Review: EQ Q & A EQ Credit Balancing Heating and Cooling Distribution Systems Option 1: Multiple Zones Single 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 Sq Ft. 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.

19 Innovation (IN) IN P1 Preliminary Rating IN C1 Innovation IN C3 LEED AP for Homes

20 Overview of IN / RP Moved Out IP (3 pts) Point Changes IN (new: +1 pt.) RP (new: 4 pts.) Total: +5 Points Don t be Afraid of Change

21 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.

22 Verification Measure Participate in Preliminary Rating

23 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

24 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)

25 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.

26 Total Verification Measure Verify that all components listed in USGBC approved Innovation request are installed;

27 Credit Example Innovation Credit (v2008) Name V4 Credit Availability in 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 MR 1.4 MR 2.2 Commonly Achieved Exemplary Credits in v2008 Clothes Washer (Cold Water Savings) Panelized Construction (with Advanced Framing) Reuse (Gut Rehab Projects) WE C2 MR C4 MR C2 No No Y

28 Pilot Credits credits

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30 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

31 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.

32 Total Verification Measure Verify that principal member of project team is LEED AP Homes.

33 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

34 Regional Priority (RP) RP C1 C4 Regional Priority

35 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 One point is awarded for each Regional Priority credit achieved, up to a maximum of four.

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38 RP C1 C4 (for Annapolis, MD) Credit Name Points Available Point Threshold RP Points Likely? LL C5 Access to Transit Urban? SS C2 Rainwater Management > 80% Permeable SS C3 Nontoxic Pest Control Y WE C1 Total Water Use 12 9 WE C2 Indoor Water Use Prescriptive EA C1 Annual Energy Use HERS 58* EA C5 HVAC Start Up Cred Homes Only EA C6 Bldg Orientation/Solar 3 3 Prescriptive Total 4 * For Mid Rise: 20% Better than Std

39 RP C1 C4 (for Chicago, IL) * * * * Credit Name Points Available Point Threshold RP Points Likely? LL C2 Site Selection Prev. Developed SS C2 Rainwater Management > 80% Permeable WE C1 Total Water Use 12 9 WE C2 Indoor Water Use Prescriptive EA C6 Active Solar Ready Design 1 1 EQ C1 Enhanced Ventilation HRV + Exhaust Fan Timers EQ C2 Contaminant Control 2 2 Air Testing Total 4

40 RP C1 C4 (for Dallas, TX) * * * * Credit Name Points Available Point Threshold RP Points Likely? LL C5 Site Selection Prev. Developed? SS C2 Rainwater Management > 65% Permeable WE C1 Total Water Use % Red n WE C3 Outdoor Water Use % Turf EA C1 Annual Energy Use HERS 52* EA C5 Active Solar Ready Design 1 1 EA C15 Renewable Energy 4 2 Prescriptive EQ C3 HVAC Balancing ESH v3 Total 4 * For Mid Rise: 26% Better than Std

41 N/A Verification Measure

42 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.

43 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 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 ID 1.4 IP C1 (2) Charrette ID 1.5 EA C6 Bldg. Orientation for Solar ID 1.6 IP C1 (3) Trade Training N/A ID 2.1 Durability Planning Prereq Prereq MR P1 Prereq ID 2.2 Durability Management Prereq Prereq Prereq ID 2.3 MR C1 Durability Verification ID 3 IN C1 Innovation N/A RP C1 Regional Priority N/A 4 N/A 4 Total (IN + RP) 5 10 Same Same

44 Awareness and Education (AE) AE Category no longer exists

45 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 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

46 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.

47 V4 Process & Related Tools Registration Verification Submittals Certification

48 Process guide/homes

49 Tools

50 Tools Interpretations interpretations

51 Think About It. Where is the best place to go to get answers to a question on the LEED for Homes process? a) USGBC b) LEED AP c) usgbc.org / resources d) usgbc.org/cert guide/homes e) LEED for Homes Provider

52 Project Examples Apply EQ prereqs and credits to a project Single family home Low rise multi family building Mid rise multi family building

53 Project Example IN / RP * * Credit Description Single Family Detached 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 Single Family Attached Low Rise MF Mid Rise MF RP C3 HVAC Start UP 1 / 4 N/A Total 6 / 10 Same Same 5/10

54 Think About it.. Total IN / RP Points Available: 10 Level % of Max. Goal Achieved Certified 40% 4 pts. Silver 50% 5 pts. 5 Pts Mid Rise Gold 60% 6 pts. 6 Pts. All Others Platinum 80% 8 pts.

55 Summary: Module 8 IN / RP / AE Exemplary Performance Pilot Credits Innovation Regional Priorities

56 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.

57 Overview of IN / RP Moved Out IP (3 pts) Point Changes IN (new: +1 pt.) RP (new: 4 pts.) Total: +5 Points Don t be Afraid of Change

58 Next Module What s Next? Module 9: Scoring of Example Projects

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