Codifying Resiliency

Transcription

1 Codifying Resiliency LEED s new resiliency pilot credits Living Cities Forum, Halifax September 12, 2016 Ryan Zizzo Technical Director MASc, PEng, LEED AP ND

2 $ Billion Economic Impacts Catastrophic Insurable Losses in Canada (in billions of 2015 dollars) Loss + Loss Adjustment Expenses Estimated Trend Eastern Ice Storm Fort McMurray Fire (alone) Alberta and Toronto Floods Ontario Wind and Rain * Source: IBC Facts Book, PCS, CatIQ, Swiss Re, Munich Re & Deloitte *2015 not final value

3 Design for Resilience

4 Zizzo Strategy Climate policy & planning Lawyers and engineers Legal risk & liabilities Climate-related reporting & disclosure Green energy & energy efficiency Low carbon construction Resilient communities Policy development and implementation related to: Climate change mitigation and adaptation, land-use planning, biodiversity, water-sustainability & conservation

5 Today s Agenda 1. Introduction to LEED and Pilot Credits 2. IPpc98: Assessment and Planning for Resilience 3. IPpc99: Design for Enhanced Resilience 4. IPpc100: Passive Survivability & Functionality During Emergencies

6 Why use LEED? LEED is designed to address the following questions: What makes a building 'green'? How can I be sure that a particular building has been designed and constructed, and/or is being operated, according to the best green practices? How can I easily communicate this to the market? How can I compare my achievements against the achievements of others?

7 LEED Credit Categories

8 Pilot Credits Up to 5 Innovation credits are allowed, in one of three ways: 1. Exemplary Performance o Performance significantly above the required threshold 2. Innovative Strategies o Strategies not necessarily previously recognized, but which provide significant green benefits 3. Pilot Credits o A previously recognized strategy which has not been integrated into the main list of credits

9 Resilience Based Pilot Credits Approved in November 2015 (new!) Spearheaded by the Resilient Design Institute (RDI), who have promoted such credits since January 2013 In the Integrative Process (IP) LEED category; identified as pc for Pilot Credit. o Thus starting with IPpc## (all credits numbered) Applicable to the following BD+C: o New Construction o Core & Shell o Schools o Retail o Healthcare o Data Centres o Hospitality o Warehouse & Distribution

10 Resilience Based Pilot Credits

11 Today s Agenda 1. Introduction to LEED and Pilot Credits 2. IPpc98: Assessment and Planning for Resilience 3. IPpc99: Design for Enhanced Resilience 4. IPpc100: Passive Survivability & Functionality During Emergencies

12 IPpc98: Assessment and Planning for Resilience Intent Assess and plan for wide range of natural disasters, disturbances, and plan for longer-term trends affecting building performance, like changing climate conditions Requirements Prerequisite: Pre-Design Hazard Assessment Plus either: o Climate Resilience Planning o Emergency Preparedness Planning International projects may use the U.S. standard or a local equivalent, whichever is more stringent

13 Prerequisite: Pre-Design Hazard Assessment Identify potential high risks for a site based on natural hazards and building function Specific assessment requirements for: o Flooding o Hurricane o Tornado / high wind o Earthquake o Tsunami o Wildfire o Drought o Landslide / unstable soils

14 Example Assessment Requirements Flooding o Determine whether project is located within the 500- year FEMA National Flood Insurance Program (NFIP) flood zone 1 (.002 chance of annual recurrence.) o Identify if the project includes a risk to any activity or element for which even a slight chance of flooding would be too great. o Reference: FEMA Flood Map Service Center web search portal) o In Canada, maps are typical available from regional conservation authority

15 Example Assessment Requirements Earthquake o Identify seismic risk; determine whether project is within FEMA 1 Earthquake zones SDC C (yellow), D (orange), or E (red) o References: FEMA Earthquake Hazard Maps o If yes, where possible pursue further specific analysis of site and surrounding conditions that will influence seismic hazards, such as soil conditions, adjacent structures, and service to the site o FEMA Rapid Visual Screening of Buildings for Potential Seismic Hazards

16 IPpc98: Assessment and Planning for Resilience Must then implement one of the following to get the credit: Option 1: Climate Resilience Planning o Climate change vulnerability assessment for: Seal level rise and storm surge River flooding Winter storms Temperature, precipitation changes and storm intensity o Share the top priorities with project team and client. Develop options that may reduce vulnerability or increase resilience, addressing: Project location and elevation Adjacent site features and development Availability of and access to services and infrastructure Building envelope performance requirements Building materials Passive systems Site design

17 IPpc98: Assessment and Planning for Resilience Option 2: Emergency Preparedness Planning o Evaluate emergency preparedness pre-design, and ensure measurable assessment program is in place for continuous improvement. Red Cross 123 Assessment Form o Prepare the Facility Description Form to identify the specific emergency preparedness features of the building. Red Cross Facility Description Form

18 Today s Agenda 1. Introduction to LEED and Pilot Credits 2. IPpc98: Assessment and Planning for Resilience 3. IPpc99: Design for Enhanced Resilience 4. IPpc100: Passive Survivability & Functionality During Emergencies

19 IPpc99: Design for Enhanced Resilience Intent Design and construct buildings that can resist, with minimal damage, reasonably expected natural disasters and weather events (those listed in IPpc98) Requirements Perform the prerequisite assessment in IPpc98 Design for enhanced resiliency for the top three risks identified o Specific strategies are provided for each hazard type

20 IPpc99: Design for Enhanced Resilience Flooding (including Hurricanes) Option 1: Flooding-Specific design measures Structures must incorporate all flood resistant provisions of ASCE Flood Resistant Design and Construction, (2014). The lowest occupied floor's lowest structural member must be a minimum of five (5) feet above the FEMA-defined base flood elevation HVAC equipment, water heating equipment, electrical panels, and generators, must follow FEMA 55 guidelines and FEMA Technical Bulletins and Advisories for wet and dry flood-proofing. Sewer backflow preventers Option 2: FORTIFIED standards All non-residential projects shall meet the FORTIFIED for Safer Business (Revised 2014) DESIGN CRITERIA 3.4 Flood Specific Design Requirements.

21 IPpc99: Design for Enhanced Resilience Earthquake Option 1: Earthquake-Specific design measures Design to meet at least a Silver rating using the ARUP REDi Rating System: Resiliencebased Earthquake Design Initiative for the Next Generation of Buildings. Option 2: FORTIFIED standards All non-residential projects shall meet the FORTIFIED for Safer Business (Revised 2014) DESIGN CRITERIA 3.5 Seismic Specific Design Requirements 1.

22 Today s Agenda 1. Introduction to LEED and Pilot Credits 2. IPpc98: Assessment and Planning for Resilience 3. IPpc99: Design for Enhanced Resilience 4. IPpc100: Passive Survivability & Functionality During Emergencies

23 IPpc100: Passive Survivability & Functionality During Emergencies Intent Maintain reasonable functionality, including access to potable water, in the event of an extended power outage or loss of heating fuel. Requirements Meet the credit requirements for any two: o Thermal resilience o Back-up power (including for water pump) o Access to potable water

24 IPpc100: Passive Survivability & Functionality During Emergencies Option 1 Thermal Resilience Thermal modeling to demonstrate building will maintain livable temperatures during power outage lasting 7 days during peak winter and summer conditions. o In summer: less than 30 C + 10 C Degree Days o In winter: more than 12 C 5 C Degree Days

25 IPpc100: Passive Survivability & Functionality During Emergencies Option 2 Back-Up Power Emergency power will be available to provide for: Electrical components of fuel-fired heating systems Fans to provide emergency cooling Water pumps if needed Minimum lighting to define a path to exits One location for every 500 square feet (46 m 2 ) that provides increased lighting One functioning electrical receptacle per 250 square feet (23 m 2 ) of occupied space Means of providing internet access Operation of one elevator in building, if applicable These emergency power requirements can be met with: Fuel-fired back-up generator(s), with stored fuel supply A solar-electric system with battery storage (sized for some time of critical operation during no sun) A microgrid serving the building as part of a larger cluster of buildings or community.

26 IPpc100: Passive Survivability & Functionality During Emergencies Option 3 Access to Potable Water For buildings on municipal water (assumed available): If on-site pumps are required for municipal water to reach occupied spaces, either: o o Back-up power for these pumps, with adequate fuel Faucet on a lower floor that doesn t require an on-site pump and is accessible to all building occupants; for larger, multi-family buildings, there must be at least one such faucet per 75 occupants or fraction thereof. For buildings not on municipal water systems, there must be a means of obtaining potable water in the event of a power outage. Such as: Well with generator-powered pump with adequate fuel Well with off-grid solar system providing power to pump Access to gravity-flow water from a cistern with sufficient storage A hand pump serving an accessible potable-water well Sufficient potable water storage in the building

27 Design for Resilience These are difficult credits o Pilot credits are about test-driving strategies This is a first step to putting resilient building design on the radar o Whether or not teams achieve the LEED credits CREDIT TOTAL (awarded, anticipated, AWARDED REGISTERED pending) IPpc98 - Assessment and Planning for Resilience IPpc99 - Design for Enhanced Resilience IPpc100 - Passive Survivability and Functionality During Emergencies

28 Ryan Zizzo THANK YOU FOR YOUR ATTENTION