Greening the District’s Building Codes April 29, 2014

Learning Objectives Learn the applicability of the Green Building Act, 2013 D.C. Green Construction Code, 2008 D.C. Energy Conservation Code, and 2013 D.C. Energy Conservation Code to your project. Understand the scope of DC Green Building Code Learn the scope of the Green Building Program Manual and how to navigate the document. Learn the new permitting requirements for the 2013 Green Construction Code and 2013 Energy Conservation Code. Learn the how the new green and energy codes will impact building inspections Learn the scope of the Green Building Program Manual and how to navigate the document. Learn the applicability of the Green Building Act, 2013 D.C. Green Construction Code, 2008 D.C. Energy Conservation Code, and 2013 D.C. Energy Conservation Code to your project. Learn the new permitting requirements for the 2013 Green Construction Code and 2013 Energy Conservation Code. Learn the how the new green and energy codes will impact building inspections 2

Goals of the New Codes Green the District’s Construction Codes to the maximum extent practicable Codify the best practices currently followed by green building leaders in the District Other important goals and considerations Fire and life safety Use of modern technology Unique DC characteristics, policies and statutes Accessibility Mayor’s directive to green the codes Q – Who is familiar with the Green Code? 3

2013 DC Green Construction Code 2012 International Green Construction Code, Amended Applies to the construction, addition, alteration, relocation, razing, and demolition of every building or structures structure as stated below: Non-residential projects (10,000 SF and larger) Multifamily residential 4 stories and larger (and 10,000 SF and larger) Demolition (10,000 SF or larger) Site Work (10,000 SF or larger) The International Code Council refers to the IgCC as an overlay code. What does that mean? Find the DC Green Codes here: http://www.dcregs.dc.gov/Gateway/NoticeHome.aspx?noticeid=4810344

Green Code Compliance Paths Green Building Act Green Construction Code Alternate Compliance Pathways: ASHRAE 189.1 LEED Green Communities ICC 700, NGBS If the Green Code Supplement is approved, IgCC will be one of several compliance paths for projects in the District of Columbia. 5

Transitory Provisions 2013 DC Construction Codes Effective March 28, 2014 Exceptions (Section 123 Building Code) Projects with existing valid building permits Projects with existing filed application Projects with existing design contracts Tenant Layout Permits for built Core and Shell - Existing Permits - Existing Design Contracts – Permit must be filed within 1 year, submit a notarized affadavit stating that the design contract is true and in effect before the effective code date - Existing Filed Application – deposit must have been paid, plan set must be sufficiently complete, 1 year to take out permit - Tenant Layout Permits – The work necessary to finish out the interior layout of every tenant space of a building permitted under previous version of the Construction Codes, shall be allowed for first occupancy 6

Which one applies to my project? Green Building Act? Or DC Green Building Codes ? No compliance requirement? - Existing Permits - Existing Design Contracts – Permit must be filed within 1 year, submit a notarized affadavit stating that the design contract is true and in effect before the effective code date - Existing Filed Application – deposit must have been paid, plan set must be sufficiently complete, 1 year to take out permit - Tenant Layout Permits – The work necessary to finish out the interior layout of every tenant space of a building permitted under previous version of the Construction Codes, shall be allowed for first occupancy 7

Site Development & Land Use Predesign Site Inventory & Assessment -- Soils & Invasive/Native plant species Stormwater Requirements Removed Landscape Irrigation Systems -- 50% design reductions in landscaping water use Management of Vegetation, Soils and Erosion Control Soil reuse and restoration Containment and removal of invasive plants 50% native planting requirement. Remainder can be adaptive 10

Site Development & Land Use Building Site Waste Management Heat Island Mitigation – 50% of site hardscaping SRI of 0.30 or greater, shading by structures & trees, pervious paving, etc. Light Pollution Control Requirements 11

Material Resource Conservation & Efficiency Construction Material Management Construction Waste Management Material Selection Whole building Life Cycle Assessment (LCA) 40% of materials shall be environmental Lamps - low-mercury lamps Building Envelope Moisture Control -envelope inspections Construction Material Management -Storage and handling of materials Construction Waste Management -50% construction waste recycling 12

Energy Conservation Modeled Performance Path -- based on zEPI calculation, COMNET Performance based design to demonstrate ZEPI not more than 51 Based on kBtu’s not energy cost “0” score = Net zero building. “100” score = Building with code-compliant energy consumption designed in 2000.  zEPI calculation: based on 0 being net zero, not based on a changing scale. Energy Modeling is not new. We do this for every building we design today that are not following the IECC prescriptive path and opt for the ASHRAE 90.1 performance path. What is new: is the zEPI. Most people are familiar with EUI (energy use index) which changes from building type and from year to year. With zEPI, we can compare across years and building types. The goal zEPI will be revised downward with future codes until reaching net zero. Image from Architectural Energy Corporation, Net Zero for Commercial Buildings presentation 13

Energy Conservation Energy Metering and Monitoring Requirements Energy load isolation and smart metering Sub-metering for non-residential projects > 50,000 SF Does not apply to buildings where sub-metering is not allowed by local laws and regulations Energy Display requirement is removed.  Metering requirements for: HVAC/mechanical Lighting Plug loads Process Loads (manufacturing/very large data centers or kitchens) Miscellaneous (all others)   Systems should be distributed and/or submetered based on load type:   HVAC/mechanical Lighting Plug loads Process Loads (manufacturing/very large data centers or kitchens) Miscellaneous (all others) Meters are only necessary if the utilizes are not distributed separately, so it gives the owners/designers a choice. Tenant sub-metering not required.  The meters are not required to be installed on projects less than 50,000 SF. Meters/distribution only required where a compete electrical system upgrade is part of the project. Auto Demand Response for HVAC-Required for buildings already implementing a Building Management System) 14

Energy Conservation Auto Demand-Response (Auto-DR) Infrastructure -- HVAC Required for buildings already implementing a Building Management System Infrastructure is required but no obligation to implement Auto-DR Building Envelope Systems – Insulation requirements during roof replacement Auto Demand Response for HVAC-Required for buildings already implementing a Building Management System)

Energy Conservation Building Mechanical Systems Duct air leakage testing Variable air volume (VAV) fan controls – above 5 HP Exhaust air guidance – proper design and VAVs or heat recovery HVAC controls in Group R-1 Building Service Water Systems -- Water heating controls in dwelling units Building Electrical Power and Lighting Systems Sleeping unit lighting controls in hotels Occupancy light reduction controls Exterior lighting reductions-time switch for after hours Automatic daylight controls Plug load controls Code will require daylight controls for most projects. How will this impact cost versus performance of the lighting controls? 16

Energy Conservation Appliances and Equipment Standby mode for elevators Variable speed escalators 50% of commercial food service equipment to be Energy Star Variable speed and shut off provisions for conveyors Renewable Energy Systems – Section stricken from model code (appendix A) Energy Systems Commissioning -- removed the post-occupancy requirements from the model code The original language of IgCC contains a requirement for a certain amount of renewable energy- this was stricken What will be required to be commissioned on projects, including commercial interiors projects Why were the various requirements for post-occupancy commissioning stricken from the model code 17

Water Resource Conservation Fixtures, Fittings, Equipment and Appliances Guidance for flow rates and reduced consumption Energy Star requirements for appliances Efficiency guidance for water-powered pumps, vehicle washing facilities HVAC Systems and Equipment Prohibition of once-through cooling Guidance for cooling towers Water Treatment Devices and Equipment Water softener and reverse osmosis efficiency guidance Onsite reclaimed water treatment systems guidance The IgCC includes maximum flow rates for various fixtures. How do these compare with existing regulations in DC? (In 2008 DC issued a plumbing code supplement reducing the allowable flow rates from the model codes. The 2012 IgCC is identical except private flushometers (1.28 from 1.6). How common are the once-through cooling type of HVAC systems that IgCC prohibits? 18

Water Resource Conservation Metering -- Guidance for water metering and submetering Nonpotable Water Requirements -- stricken, wasn’t seen as necessary Rainwater Collection and Distribution -- moved to Plumbing Code Gray Water Systems – stricken due to guidance in Plumbing Code Reclaimed Water Systems -- stricken (not available in DC) Why did the Green TAG recommend striking the section concerning nonpotable water requirements? (more appropriate language in plumbing code/issues with signage and public health) Bill- Can you explain the Green TAG’s decision to amend and move the IgCC sections dealing with rainwater and graywater to the plumbing code? (incentives from DDOE) 19

Indoor Environmental Quality Building Construction Features -- Guidance for air handling and filter access HVAC Systems -- Guidance for construction phase and post-construction air filtration Specific IAQ Control – Stricken, requirement for IAQ testing thought to be too much Material Emissions and Pollutant Control Guidance for formaldehyde limits on composite wood products Guidance for VOC emission limits for flooring, ceiling tiles/walls, and insulation Acoustics -- Section stricken (poorly worded and being covered elsewhere in code) Daylighting -- Daylighting section was revised and moved to Appendix A Why did the Green TAG recommend moving the requirement for IAQ testing to Appendix A, especially on large buildings? What types of materials will be subject to VOC emission limits? (Similar to LEED: Composite wood, Adhesives and Sealants, Paints and Coatings) What impact would the requirement for daylighting for 25%-50% of net area have on projects in the District, why was it moved to Appendix A? (limit construction on tight lots, complicate analysis of prospective sites, expose architects to risk) 20

Commissioning, O&M Scope Commissioning for all projects, except for alterations less than 50,000 sf Altered the commissioning plan -- focus on “active” systems Approved Agency -- Guidance on “approved agencies” for commissioning Commissioning -- Commissioning records and reporting to be provided to the owner, and made available to the code official upon request Building Operations and Maintenance – section stricken from code What was important to the Green TAG CCCB about requiring commissioning on projects in the District? What will the IgCC require that LEED does not in this regard (permanent o&m manual and commissioning reports) What major changes have been recommended for this chapter? (specific modifications to focus on “active” systems) 21

Electives– Appendix A Site Project Electives-examples Infill Site Wildlife Corridor Infill Site Brownfield Site Site Restoration Mixed-use Development Changing and Shower Facilities Long-term Bicycle Storage and Parking Heat Island Mitigation Site Hardscape (2 electives) Green Roof Coverage (3 electives) Native Plant Landscaping (2 electives) explain Appendix A. 15 for NC 13 for Level III Bicycle parking requirements are covered in zoning regulations, what are the related provisions in Appendix A and why are they important? (similar to LEED) 22

Green Building Program Manual Broken down into typical project phases: Design Permitting Inspections Certificate of Occupancy Post Occupancy Includes Sectional Reference Guide and Submittal Templates to streamline process

Green Building Program Manual Guidance on the implementation and enforcement Green Construction Code Energy Conservation Code Green Building Act Reference associated District regulations (Roadmap) Guidance on Green Code alternative compliance paths LEED ASHRAE 189.1 ICC 700 Enterprise Green Communities

Design Phase Preliminary Design Review Meetings Green Review included Green Review (upon request) - Existing Permits - Existing Design Contracts – Permit must be filed within 1 year, submit a notarized affadavit stating that the design contract is true and in effect before the effective code date - Existing Filed Application – deposit must have been paid, plan set must be sufficiently complete, 1 year to take out permit - Tenant Layout Permits – The work necessary to finish out the interior layout of every tenant space of a building permitted under previous version of the Construction Codes, shall be allowed for first occupancy 25

2013 DC Energy Conservation Code 2012 International Energy Conservation Code, Amended Significantly more energy efficient than the 2006 DC Energy Conservation Code Code as two separate divisions Commercial Buildings Residential Buildings Detached one- and two- family dwellings Group R2, R3, R4 < 4 stories in height IRC references the 2012 IECC Increased

Additional Green Requirements/Incentives (Roadmap) Anacostia Waterfront Development Zone Stormwater management Groundwater Lead-paint and asbestos work practices Use of volatile organic compounds (VOC) Energy Benchmarking Green Area Ratio RiverSmart Homes/Communities DCSEU 27

Permitting Process Green and Energy reviews are integrated into the standard permit application and review process Updated online permit application Project will be assigned a Green Review depending on applicability No Third Party green plan review All projects will be reviewed for Energy Conservation Code compliance List of required documents for each Green and Energy Review by permit type and compliance path

Permitting Process Construction documents with sufficient detail and clarity to show compliance with Energy Code: Mechanical Equipment Efficiency and Sizing Duct sealing Air Sealing Details Envelope/Insulation values Fenestration U-factors and SHGC

Submittals (Building Permit) Green Building Act ENERGY STAR Target Finder Score Financial Security Understanding, if applicable Compliance Path Selection and Documentation LEED Enterprise Green Communities Green Code Alternative Pathways (ASHRAE 189.1, LEED, Green Communities, ICC 700) Raze and Site Work Permit

Building Inspections Green and Energy Inspections integrated into the inspection process, will occur simultaneously with other required inspections All projects required to use third party to complete performance testing: Commissioning, Air Leakage Tests, Duct Leakage Tests No Green Third Party Inspections

Certificate of Occupancy Green Code requires a number verifications prior to issuance of a certificate of occupancy First CofO for a floor above grade plane in projects where there are multiple certificates of occupancy If project must meet post-occupancy requirements, a CofO will not be granted unless the code official determines that the project is on track to be verified in accordance with the path selected

Certificate of Occupancy GBA: Financial Security prior to issuance of a certificate of occupancy by one of four methods: Cash Irrevocable letter of Credit Bond Binding Pledge

Post Occupancy Green Building Act and Green Construction Code allow for verification after a building is occupied for some of the green building requirements Due dates vary : Pay close attention to when your documentation is due to avoid any issues and/or fines If using a third party verification system be sure to familiarize yourself with the deadlines for those programs to ensure your project remains eligible

Sectional Reference Guide Section Summary  A detailed summary of each code section that gives additional guidance, considerations, design details, and other resources that will help building professionals develop a deeper understanding of the code section, connect the dots to larger green building topics, and “read between the lines” of the specific code section. Rationale, Benefits and Intention A summary that states the importance of the section and why it is included in the green or energy code

Sectional Reference Guide Best Practices A list and description of industry best practices that are used to implement and meet the requirements of each code section, specific to the District’s climate zone Innovations A list of innovative techniques, products, and/or methods that are being used to successfully implement each code section Timeline Guidance on when in the construction timeline the section should ideally be considered and addressed by the project team

Sectional Reference Guide Resources A list and description of critical journals, supplementary codes, web resources, books, and other resources that can be used for additional guidance when applying the green and energy codes Related Codes and Referenced Standards A list of references to related ICC codes, other codes, and/or other referenced standards in each section.   Additionally, lists of all pre-approved agencies, processes, sources, standards and other references throughout the Green Construction and Energy Conservation Codes that site an “approved” alternative to the stated code language.

Questions? Dave Epley Green Building and Sustainability Coordinator Department of Consumer and Regulator Affairs Green.building@dc.gov Fulya Kocak Director of Sustainable Solutions, Clark Construction Group Fulya.kocak@clarkconstruction.com Patrick Kunze Senior Principal GHT Limited Pkunze@ghtltd.com