igcc vs. leed 2009

Sheila Blake, MBA, CBO, LEED AP BD+C

PWE Code Enforcement

City of Houston

Comparison of the 2012 IgCC toLEED 2009

Gulf Coast Green

May 2, 2013

City of Houston is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

Questions related to specific materials, methods, and services will

be addressed at the conclusion of this presentation..

AIA/CES Credits

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AIA Course Description

In October 2010, the AIA/CES system was updated with

the new CES Discovery system, in that time we have

transferred more than one million records. This new

update has made it necessary to remind us of the

AIA/CES policies and procedures, to introduce the “new”

provider ethics, and to reintroduce the AIA/CES

audits/quality assurance program. This presentation

covers those areas giving providers the opportunity to

give feedback and input.

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AIA Learning ObjectivesAt the end of this program, participants will be able to:

1. Explore the differences between the IgCC and LEED 2. Identify LEED credits that contribute to IgCC compliance

for projects to obtain approval for both LEED and IgCC. 3. Discuss the opportunities to implement the IgCC as a voluntary program or as a locally approved practice.

4. Distinguish the advantages and disadvantages of rating systems and codes under different conditions.

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The International Green Construction Code when adopted by a jurisdiction requires compliance with minimum sustainability requirements for new and altered buildings.

This session explores the relationship with LEED programs and examples of implementation of the code in order to put this new code into a framework that is more easily referenced and therefore understood and implemented.

2012 IGCC Comparison to LEED v3

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IgCC LEED

Mandatory Voluntary

Enforceable – More Prescriptive More Performance

All or Nothing Compliance Levels for Ranking

Governmental with Industry Industry Committees Final vote by govt members and Comments

Final vote by full membership

Advantages and Disadvantages

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FORT COLLINS, CO

Extracted portions for water and .

DALLAS

Passed Sept 2012, takes effect Sept 2013Amended out energy, commissioning, existing bldgs

IgCC Methods of Adoption – Mandatory

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FLORIDA MARYLAND OREGON* N. CAROLINA* S. CAROLINA RHODE ISLAND

*partial adoption

Boynton Beach, FL Boulder, CO Carbondale, CO Kayenta, AZ Keene, NH Phoenix, AZ Richland, WA Scottsdale, AZ

IgCC Methods of Adoption – Voluntary

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1: Scope and Administration

2: Definitions

3: Jurisdictional Requirements and Life Cycle Assessment

4: Site Development and Land Use

5: Material Resource Conservation and Efficiency

6: Energy Conservation and CO23 Emission Reduction

7: Water Resource Conservation, Quality and Efficiency

8: Indoor Environmental Quality and Comfort

9: Commissioning, Operation and Maintenance

10: Existing Buildings

11: Existing Building Site Development

12: Referenced Standards

IgCC Chapters

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A: Project Electives

B: Radon Mitigation

C: Optional Ordinance

D: Alternative Enforcement Procedures

IgCC Appendices

LEED has mandatory prerequisites and optional credits, while IgCC has mandatory requirements (some jurisdictional) and project electives

LEED has percentage targets with list of available methods to comply, while IgCC prescribes methods.

IgCC threshold levels tend to be lower.

IgCC requires a variety of plans for compliance

IGCC v LEED – General

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Mandatory vs. Elective Provisions

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IGCC v LEED – Sustainable Sites

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LEED Sustainable Sites IgCC Sustainable SitesPrereq 1 Construction Activity Pollution Prevention 405.1 Soil and Water Quality Protection Plan

Credit 1 Site Selection: Prime Farmland 402.7 Building prohibited on land zoned agricultural. (Jurisdictional)

Credit 1 Site Selection: Floodplain

402.2.3 1 foot freeboard in flood hazard area402.2.1 and 402.2.2 Flood Hazard Area Preservation - General / Specific -Prohibited in Flood areas with 1% risk or as designated on map. (Jurisdictional)A104.1 Buildings moved, higher freeboard, or substantial improvement at 40%. (Project Elective)

Credit 1 Site Selection: Threatened Species Habitat402.5 No development within 50 feet of designated conservation area. (Jurisdictional)A104.5 Habitat Restoration. (Project Elective)

Credit 1 Site Selection: Wetland 402.3 Building prohibited in, over or within water or buffer. (Jurisdictional)

Credit 1 Site Selection: Water Body 402.4 Building prohibited in wetland or within buffer. (Jurisdictional)

Credit 1 Site Selection: Parkland 402.6 Development prohibited in public park. (Jurisdictional)


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LEED Sustainable Sites IgCC Sustainable SitesCredit 2 Development Density & Community Connectivity

402.8 Greenfield development prohibition. (Jurisdictional) A104.3 Infill development. (Project Elective)

Credit 3 Brownfield Redevelopment A104.4 Brownfield redevelopment. (Project Elective)Credit 4.1 Alternative Transportation: Public Transportation Access

Credit 4.2 Alternative Transportation: Bicycle Storage & Changing Rooms

407.1 Walkways and bicycle paths407.2 Bicycle changing and shower facilities > 10,000 square feet. 1104.2 Building site improvements.A104.7 Changing and shower facilities <10,000 square feet. (Project Elective) A104.8 Long term bicycle storage. (Project Elective)

Credit 4.3 Alternative Transportation: Low-Emitting and Fuel Efficient Vehicles

407.4.2 Low emission, hybrid and electric vehicle parking.

(Jurisdictional)

Credit 4.4 Alternative Transportation: Parking Capacity 407.4.1 High Occupancy Vehicle parking. (Jurisdictional)


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LEED Sustainable Sites IgCC Sustainable Sites

Credit 5.1 Site Development: Protect or Restore Habitat

402.8.1 Limits on depth of disturbance beyond building, hardscape and construction staging area. 405.2 Vegetation and Soil Protection Plan (existing vegetation, map, barriers, perimeter distance, methods, tree protection zone)402.8 Greenfields prohibition unless infill development. (Jurisdictional)

Credit 5.2 Site Development: Maximize Open Space

Credit 6.1 Stormwater Management: Quantity Control 403.1.1 Retain 95th percentile of runoff or restore predevelopment hydrology

Credit 6.2 Stormwater Management: Quality Control 403.1.3 / 403.2 Prohibit brownfield infiltration and use of coal tar sealants

Credit 7.1 Heat Island Effect: Non-Roof

408.2 Site Hardscape 408.3 Shading by trees 1103.2 Changes to Hardscape and surface vehicle parking A104.9 Heat Island 75%, 100%, in zones 1-6, 50% in zone 7-8. (Project Elective)


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LEED Sustainable Sites IgCC Sustainable Sites

Credit 7.2 Heat Island Effect: Roof408.3 Roof surfaces: 75% cool roof or vegetative in zones 1-3.A104.9 Heat Island cool roof zones 4-8. (Project Elective)

Credit 8 Light Pollution Reduction 409.1 Light Pollution control for uplight, light trespass and glare. (Jurisdictional)

401.2 Predesign Site Inventory and Assessment

405.1.2 Topsoil Protection

405.1.3 Imported soils not mined from farmland and greenfield sites

405.1.4 Soil reuse and restoration for vegetation

405.1.5 Engineered growing media If used must use best available science

A104.2 Wildlife Corridor (Project Elective)

A104.6 Mixed Use Development (Project Elective)

IGCC v LEED – Water Efficiency

LEED Water Efficiency IgCC Water Efficiency

Prereq 1 Water Use Reduction (20%)

Table 702.1 Minimum Fixture flow rates (shower, lavatory faucet, bar sink, kitchen faucet, urinal, water closet, food establishment prerinse spray valve, drinking fountain).702.2 Combination tub and shower valves – leakage limited to 0.1 gpm.702.4 Drinking fountain controls - Auto shutoff or metered flows

Credit 1.1 Water Efficient Landscaping (50% red)

404.1 Landscape irrigation systems - reduce potable by 50% 404.1.2 No irrigation runoff, weather controls, plant needs, pressure regulators, sprinkler limits404.2 Outdoor fountains must use nonpotable or alternate sources unless < 100 gallons or < 20 sq. ft. water surface, recirculate and reuse water, and have nonpotable signage (where available) 405.3 Native plant landscaping

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IGCC v LEED – Water Efficiency


Credit 1.2 Water Efficient Landscaping (100% red) 404.1 Landscape irrigation systems405.3 Native plant landscaping

Credit 2 Innovative Wastewater Technologies

710 Alternate onsite nonpotable water sources. 702.5 Nonwater urinal drainage connection downstream from water using fixtures. 707 Rainwater Collection and Distribution Systems 708 Gray Water Systems 709 Reclaimed Water systemsA107.2 Onsite waste water treatment (Project Elective)A107.4 Onsite nonpotable water for plumbing fixture flushing. (Project Elective) A107.9 Gray water collection. (Project Elective)

Credit 3.1 Water Use Reduction (30%) 702 Fixtures, fittings, equipment and appliancesCredit 3.2 Water Use Reduction (35%) 702 Fixtures, fittings, equipment and appliancesCredit 3.3 Water Use Reduction (40%) 702 Fixtures, fittings, equipment and appliances

702.4 Drinking fountain controls - Auto shutoff or metered flows

702.6 Appliances (Energy Star clothes washer, ice maker, dishwasher)

702.7 Municipal reclaimed water (Jurisdictional)

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LEED Water Efficiency IgCC Water Efficiency 702.8 Efficient hot and tempered water distribution. Max pipe length and volume 702.9 Trap priming water - nonpotable and non-continuous, max 30 gallons per year

702.10 Water-powered pumps not allowed as primary means to remove ground water from sump

702.11 Food service hand washing faucets auto shutoff 702.12 Dipper wells - shutoff and flow valve to max 1 gpm

702.13 Automated vehicle wash facilities - reuse 50% rinse water, max 40 gal/vehicle bay or 35 gal/veh conveyor

702.14 Self-service vehicle wash facilities - spray wand maximum 3 gpm and faucets self-closing

702.15 Vehicle washing facilities - reverse osmosis waste water to be used for washing

702.16 Food waste disposers - load sensing for max 1 gpm at no-load, and 8 gpm for full-load

702.17 Combination ovens - max 3.5 gal/hour per steamer pan

702.18 Autoclaves and sterilizers - nonpotable if water tempered. Vacuum type not allowed for venturi-type water use

702.19 Liquid ring vacuum pumps - reuse water unless hazardous 702.20 Film processors - water reuse if water cooled processors 703.1 Hydronic closed loop systems and equipment – nonpotable makeup water 703.2 Humidity lock-out > 55 percent

703.3 Tempering water nonpotable unless flow limit for 140 degree max and < 200 gal/day

Water Efficiency IGCC ONLY

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703.4 Condensate must be captured and reused or credit to sanitary return where credit exists

703.5 Heat Exchangers - once through cooling prohibited 703.6 Dehumidifiers must be captured where system exists

703.7 Cooling towers, evaporative condensers and fluid coolers - prohibit once through cooling, limit drift losses

703.9 Evaporative cooling < 4 gal/ton-hour cooling capacity, pump shut-off, timer or sensor. Discharge water reused.

704.1 Water treatment devices and equipment - demand initiated regeneration controls, max 5 gal/1000 grains removed.

705 Metering - different sources of water and different consumption types shall be metered (tenant, irrigation, cooling towers, industrial processes…)

706 Nonpotable water requirements - signage and quality A107.3 Onsite nonpotable water for outdoor hose connections. (Project Elective)

A107.5 Onsite nonpotable water for fire sprinkler systems (Project Elective)

A107.6 Onsite nonpotable water for fire pumps. (Project Elective)

A107.7 Onsite nonpotable water for industrial process makeup water (Project Elective)

A107.8 Onsite nonpotable water for cooling tower makeup water. (Project Elective)

Water Efficiency IGCC ONLY

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IGCC v LEED – Energy and Atmosphere

LEED Energy Efficiency IgCC Energy Efficiency

Prereq 1 Fundamental Commissioning of the Building Energy Systems

611 Energy systems commissioning and completion 902 Approved agency 903 Commissioning

Prereq 2 Minimum Energy Performance

602 Modeled performance pathway requirements - or -605 Building Envelope Systems per IECC plus. 606 Building Mechanical Systems per IECC plus 607 Building Service WH Systems per IECC plus 608 Building Electrical Power and Lighting Systems per

IECC, - plus - 1003.2.2 Heating, Ventilating and Air-Conditioning

1003.2.3 Service Water Systems 1003.2.6 Insulation of unconditioned attic 1003.2.7 Roof replacement insulation

Prereq 3 Fundamental Refrigerant Management

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IGCC v LEED – Energy and AtmosphereLEED Energy Efficiency IgCC Energy Efficiency

Credit 1 Optimize Energy Performance

602 Modeled performance pathway requirements 1003.2.2 Heating, ventilating and air-conditioning 1003.2.3 Service Water Systems 1003.2.6 Insulation of unconditioned attics 1003.2.7 Roof replacement insulation602.1 Performance based zEPI <= 46 and Indirect CO2 emissions. (Jurisdictional)A106.1 Performance path - higher zEPI levels for up to 10 Elective (Project Elective) A106.2 Prescriptive path - 10% more efficient Mechanical heating and cooling plus. (Project Elective) A106.3 Prescriptive path - service WH 10% more efficient in certain occupancies. (Project Elective) A106.4 Prescriptive path - Lighting with indoor and outdoor 10% less energy (Jurisdictional Elective) A106.5 Performance path - 40% reduced energy passive design. (Jurisdictional Elective)

Credit 2.1 On-Site Renewable Energy (1%)

610 Building Energy Renewable Energy Systems - REQUIRED for 2 percent of building and site energy, or 4% RECs. Solar and Wind at 2% or Solar Water Heating at 10% hot water energy usage

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LEED Energy Efficiency IgCC Energy EfficiencyCredit 2.2 On-Site Renewable Energy (3%) 610 Building Renewable energy systems. (Jurisdictional)

Credit 2.3 On-Site Renewable Energy (5%) 610 Building Renewable energy systems. (Jurisdictional)A106.6 Renewable Energy 5% (Project Elective)





Credit 3 Enhanced Commissioning

611 Energy Systems Commissioning per IECC in 60 days, Post-occupancy recommissioning in 18-24 months from Certificate of Occupancy 902 Approved Agency 903 Commissioning

Credit 4 Enhanced Refrigerant Management

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IGCC v LEED – Energy and AtmosphereLEED Energy Efficiency IgCC Energy Efficiency

Credit 5 Measurement & Verification

603 Energy metering, monitoring and reporting – all forms of energy delivered, produced, and used. 603.5 Sub-meters, 36 month data and annual emissions 610.5 Renewable energy system performance monitoring and metering 705 Metering 1003.2.1 Metering devices

Credit 6 Green Power 610.1 Renewable energy systems requirements – allows RECs

602.2 Annual Direct / Indirect CO2e emissions. (Jurisdictional)

603.2 Energy distribution design requirements and load type isolation in buildings - circuit = 1 type of energy. Includes plug and process loads

603.4 Energy load type sub-metering - installed when > 25,000 sq. Ft. or future capability

603.6 Energy Display at main bldg entrance

604 Automated demand-response (AUTO-DR) infrastructure. (Jurisdictional)

609 Specific appliances and equipment -elevators, escalators, conveyors and commercial food service equipment.

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LEED Energy Efficiency IgCC Energy Efficiency

Prereq 1 Fundamental Commissioning of the Building Energy Systems

611 Energy systems commissioning and completion 902 Approved agency 903 Commissioning

Prereq 2 Minimum Energy Performance

602 Modeled performance pathway requirements - or -605 Building Envelope Systems per IECC plus. 606 Building Mechanical Systems per IECC plus 607 Building Service WH Systems per IECC plus 608 Building Electrical Power and Lighting Systems per

IECC, - plus - 1003.2.2 Heating, Ventilating and Air-Conditioning

1003.2.3 Service Water Systems 1003.2.6 Insulation of unconditioned attic 1003.2.7 Roof replacement insulation

Prereq 3 Fundamental Refrigerant Management

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IGCC v LEED–Materials and Resources

LEED Materials and Resources IgCC Materials and Resources

Prereq 1 Storage & Collection of Recyclables504 Waste Management and Recycling 505.2.3 Recyclable building materials and building components

Credit 1.1 Building Reuse - Walls, Floors, Roof (55%)A105.6 Building Reuse of Core and Shell 75% (Project Elective) A105.7 Historic Reuse 75% (Project Elective)

Credit 1.1 Building Reuse - Walls, Floors, Roof (75%)A105.6 Building Reuse of Core and Shell 75% (Project Elective) A105.7 Historic Reuse 75% (Project Elective)

Credit 1.1 Building Reuse - Walls, Floors, Roof (95%)

Credit 1.2 Building Reuse - Interior Non-Structural (50%)

Credit 2.1 Construction Waste Management (50% diversion)

406 Building Site waste Management (includes land clearing debris and excavated soils min 75%) 503.1 Construction Material and Waste Management Plan503.1 Additional Percentage Determined by Jurisdiction. (Jurisdictional) A105.1 Add 20% diversion (Project Elective)A105.2 Max 4 lb / square foot construction waste (Project Elective)

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Credit 2.2 Construction Waste Management (75% diversion)

406 Building Site waste Management (includes land clearing debris and excavated soils min 75%) 503.1 Additional Percentage Determined by Jurisdiction. (Jurisdictional)

Credit 3.1 Resource Reuse (5%)505.2.1 Used Materials and ComponentsA105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 3.2 Resource Reuse (10%)505.2.1 Used Materials and ComponentsA105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 4.1 Recycled Content (10%)505.2.2 Recycled Content Building Materials (25%)A105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 4.2 Recycled Content (20%)505.2.2 Recycled Content Building Materials (50%)A105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 5.1 Regional Materials (10%)505.2.5 Indigenous MaterialsA105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

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Credit 5.2 Regional Materials (20%)505.2.5 Indigenous MaterialsA105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 6 Rapidly Renewable Materials505.2.4 Bio-based materials A105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

Credit 7 Certified Wood505.2.4 Bio-based materials A105.3 Aggregate materials 70% A105.3 Aggregate materials 85% (Project Elective)

502.1 Construction material management – construction phase - storage and handling per manufacturer; moisture control.

506 Lamps - mercury limits 5-8 milligrams

507 Building envelope moisture control – commissioning of moisture prevention strategies

A105.4 Building Service Life Plan for length of building life, operations and maintenance, and replacement. (Project Elective)

A105.5 Deconstruction and Reuse of 90% of building. (Project Elective)

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IGCC v LEED – Indoor Environmental Quality

LEED Indoor Environmental Quality IgCC Indoor Environmental QualityPrereq 1 Minimum IAQ Performance International Mechanical Code - OverlayPrereq 2 Environmental Tobacco Smoke Control 803.3 Environmental Tobacco Smoke Control

Credit 1 Outdoor Air Delivery Monitoring

Credit 2 Increased Ventilation

Credit 3.1 Construction IAQ Management Plan: During Construction

502.1 Construction Material Management 801.2 Indoor air quality management plan required. 803.1 Construction phase requirements – Construction Ventilation (MERV 8)

Credit 3.2 Construction IAQ Management Plan: Before Occupancy

801.2 Indoor air quality management plan required804.2 Post-construction, pre-occupancy baseline IAQ testing. (Jurisdictional)

Credit 4.1 Low-Emitting Materials: Adhesives and Sealants 805 Prohibited materials 806.2 Adhesives and sealants

Credit 4.2 Low-Emitting Materials: Paints and Coatings 805 Prohibited materials 806.3 Architectural paints and coatings

Credit 4.3 Low-Emitting Materials: Flooring Systems

805 Prohibited materials 806.4 FlooringA108.2 All flooring meets VOC emission limits. (Project Elective)

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IGCC v LEED – Indoor Environmental Quality

LEED Indoor Environmental Quality IgCC Indoor Environmental QualityCredit 4.4 Low-Emitting Materials: Composite Wood & Agrifiber

805 Prohibited materials 806.1 Emissions from composite wood products

Credit 5 Indoor Chemical and Pollutant Source Control 803.4 Isolation of pollutant sources803.5 Filters

Credit 6.1 Controllability of Systems: Lighting

Credit 6.2 Controllability of systems: Thermal Comfort

Credit 7.1 Thermal Comfort: Design 803.2 Thermal environmental conditions for human occupancy - ASHRAE 55

Credit 7.2 Thermal Comfort: Verification Credit 8.1 Daylighting and Views: Daylight 808 DaylightingCredit 8.2 Daylighting and Views: Views A108.6 View to building exterior (Project Elective)

804.1 Fireplaces and appliance venting and combustion air

806.5 Acoustical ceiling tiles and wall systems emission limits 85% A108.2 Flooring deemed to comply list. (Project Elective) A108.3 Ceiling deemed to comply list. (Project Elective)A108.4 Wall deemed to comply list. (Project Elective)

806.6 Insulation VOC limits 807 Acoustic sound levels and testing. (Jurisdictional) A108.5 Total VOC limit >= 50% (Project Elective)

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This concludes The American Institute of Architects Continuing Education Systems Course

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igcc vs. leed 2009

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