Southeastern Regional Building Commissioners AssociationOverview of the International Green Construction Code (IgCC)Doug Connell International Code CouncilSeptember 2011

What is the IgCC?An Adoptable, Useable and Enforceable code Intended to reduce the negative impacts of the built environment on the natural environment Addresses Conservation of:Natural resourcesMaterialsEnergyWaterAir & indoor environmental qualityOwner education

Scope and IntentConsistent and coordinated with the ICC family of Codes & StandardsApplicable to the construction of New and existing buildingsAll buildings other than residential buildings under the scope of the IRCIntended to be enforced primarily by building officials a system already in place nation wideIntended to drive green building into everyday practice

IgCC ConceptsThe IgCC is not a rating system, nor is it intended to replace them. The IgCC is code which is intended to be adopted on mandatory basis.Unlike most rating systems, the IgCC primarily consists of minimum mandatory requirements, just as other I-Codes.

How should we compare green and sustainable codes, standards, rating systems and programs?Building by building?- Or -By their ability to be adopted on a mandatory basis in all regions and potential overall reduction of negative environmental impacts? What should the intent of a green code or program be?To make a few buildings very green?- Or -To have as large a positive impact and as little a negative impact as possible on the total natural environment? Not just local, not just the U.S., but the entire planet.

IgCC Concepts

IgCC ConceptsBecause the IGCC is intended to apply to both private sector and government owned buildings on a mandatory basis itRaises the floor of sustainability for all commercial buildings.Positions the IGCC to achieve environmental benefits on a massive scale a scale not possible with voluntary rating systems.

Provides many detailed prescriptive requirements, as well as performance targets, which are quantified and enforceable.Does not award innovation without merit or the implementation of theories without real world value.Contains many detailed requirements, including:Gray water system detailsIrrigation system detailsRainwater catchment system detailsActual energy provisions

IgCC: Detailedand Comprehensive*

Chapter Topics

1: Administration 2: Definitions 3: Requirements determined by the jurisdiction and project electives 4: Site development & land use 5: Materials resource efficiency 6: Energy conservation and efficiency 7: Water conservation and efficiency

Chapter Topics

8: Indoor environmental quality 9: Commissioning, operation and maintenance 10: Existing buildings 11: Existing building sites 12: Referenced standards AppendicesA: Optional OrdinanceB: Greenhouse Gas Reductions in Existing BuildingsC: Sustainability MeasuresD: Enforcement Procedures

SCOPENew and existing constructionAll buildings other than those covered by the IRC The IgCC is an overlay code.Compliance enforced as part of other applicable codes.References other I-CodesIBC, IFGC, IMC, IPC, IPMC, IFC, IWUIC, ICCPC, IEBC, IZC..

Chapter 1

Administration*

Does not circumvent the requirements of other codes, but often exceeds them.Regulates sustainable aspects of construction not covered by other codes.Regulates the impact of the built environment on the natural environment.

Chapter 1

Administration*

Shares some definitions which are common to other International codes.Primarily provides definitions unique to the IgCC.Examples: ApprovedApproved AgencyBuilding CommissioningConstruction DocumentsControlDaylight ControlOccupant Sensor Control

Chapter 2

Definitions*

Demand Response, AutomatedEnergy Management and Control SystemRegistered Designer in Responsible ChargeSequence of Operation

Chapter 2

Definitions*

LIFE CYCLE ASSESSMENT (LCA).

A technique to evaluate the relevant energy and material consumed and environmental emissions associated with the entire life of a building, product, process, material, component, assembly, activity or service.

Chapter 3 is unique in that the focus will be on stringency of the entire document as adopted by the jurisdiction. Focus is on adoptability through flexibility of the document to coordinate with the local jurisdictions environmental goals and specific regional geography.Four (4) major components of Ch 3:1. Jurisdictional Requirements.2. Option to adopt ASHRAE Standard 189.1 (Replaces IGCC Chapters 4 through 12)3. Project Electives.4. Whole Building Life Cycle Assessment Project Elective.Chapter 3

*

Chapter 3 Jurisdictional RequirementsAllows jurisdictions to make choices which: Can tailor the code to address environmental concerns of a local nature. Respond to environmentally related local political agendas.Apply to all buildings constructed in the jurisdiction.Determine whether certain provisions will be enforced.

Internal document confidential information for ICC

IgCC Table 302.1 allows regional choices, similar in concept to Table R302.1(1) in the IRC.Allows jurisdictions to make choices for higher levels of stringency by: Determining whether certain provisions will be enforced in the jurisdiction. (Typically yes or no answers.)Decisions made in Table 302.1 apply to all buildings constructed in the jurisdiction.Many of the choices in Table 302.1 may pose risks for certain jurisdictions. (Thus they may pose a barrier to adoption in some regions and are not mandatory for all jurisdictions.)

Table 302.1

Jurisdictional Requirements

22 Choices affecting Chapters 4 through 10

*

*Table 302.1 Requirements Determined by the Jurisdiction

402.2.6Greenfields Yes No403.4.1High occupancy vehicle parking Yes No403.4.2Low emission, hybrid and electric vehicle parking Yes No405.1Light pollution control Yes NoCH 5. MATERIAL RESOURCE CONSERVATION AND EFFICIENCY502.1Enhanced construction material and waste management Yes No502.1Minimum percentage of waste material diverted from landfills - Select a percentage only where Yes is selected in the previous row. 50% 65%CH 6. ENERGY CONSERVATION AND EARTH ATMOSPHERIC QUALITY602.1,602.3,602.3.2,302.1.1Enhanced energy performance - for buildings pursuing performance based compliance and buildings greater than 25,000 square feet in total building floor area Yes NoTable 602.1,302.1,302.1.1 TANEU of Jurisdictional Choice - Where Yes is selected in the previous row, the jurisdiction shall indicate a TANEU of 63 or less in Table 602.1 for each occupancy for which it intends to require enhanced energy performanceSee Table 602.1 and Section 302.1

Allows owners and design professionals to make choices which:Encourage and drive the construction of buildings which exceed the already stringent minimum requirements of the code.Encourage practices which are difficult to mandate. Adds a degree of flexibility to the code.Jurisdiction determines minimum number that must be satisfied in Table 302.1.Owner chooses which electives will be complied with on a project by project basis.

Table 303.1

Project Electives

52 Electives affecting Chapters 4 through 8

*

Table 303.1Project Electives Checklist*

SectionDescriptionCheck the corresponding box to indicate each project elective selected.CH 3. JURISDICTIONAL REQUIREMENTS AND PROJECT ELECTIVES304.1Whole Building Life Cycle AssessmentCH 4. SITE DEVELOPMENT AND LAND USE407.2.1Flood hazard avoidance407.2.2Agricultural land407.2.3Infill site407.2.4Brownfield site407.2.5Greenfield development407.2.6Greenfield proximity to development 407.2.7Greenfield proximity to diverse uses 407.3.1Changing and shower facilities

*Table 303.1 - Project Electives Checklist

407.3.2Long term bicycle parking and storage407.3.3Preferred parking407.4.1Site hardscape 1407.4.2Site hardscape 2407.4.3Site hardscape 3407.4.4Roof covering407.5Light pollutionCH 5. MATERIAL RESOURCE CONSERVATION AND EFFICIENCY507.2 Waste management (502.1 + 20%)

507.3(1) Reused, recycled content, recyclable, bio-based and indigenous materials (50%)

507.3(2) Reused, recycled content, recyclable, bio-based and indigenous materials (80%)(2 Electives)

507.4(1) Multi-story building footprint reduced by at least 45%

*Table 303.1 - Project Electives Checklist

CH 7. WATER RESOURCE CONSERVATION AND EFFICIENCY710.2.1Fixture flow rates are one tier above that required by Table 302.1710.2.1Fixture flow rates are two tiers above that required by Table 302.1. (2 Electives)710.3 On-site wastewater treatment710.4 Non-potable outdoor water supply710.5 Non-potable water for plumbing fixture flushing710.6 Automatic fire sprinkler system

710.7Non-potable water supply to fire pumps

710.8 Non-potable water for industrial process makeup water

710.9Efficient hot water distribution system

710.10Non-potable water for cooling tower makeup water

710.11Graywater collection

Even where adopted in its baseline/minimum form (where no project electives are selected and only No boxes checked), the IgCC is poised to produce significant environmental benefits. No longer must mandatory green building requirements be limited to government buildings.

Chapter 3

Jurisdictional Requirements

Project Electives

Whole Building LCA Project Elective

*

Chapter 4

Site Development and Land UsePreservation of Natural ResourcesProtection by area: e.g. floodplains, conservation areas, park lands, agricultural lands, greenfields. Site design and development requirements: Pre-design site inventory and assessmentStormwater management, Landscape irrigation systems, Management of vegetation and soils Erosion control Site waste management plan.

Chapter 4

Site Development& Land UseTransportation impact.Walkways and bicycle pathsChanging and shower facilitiesBicycle parking and storageVehicle parkingHeat island mitigation.Site hardscapeRoof coveringsLight pollution mitigation.Detailed site development requirements.Subsurface graywater irrigation systemsVegetation and soil protectionSoil reuse and restorationLandscape, soil and water quality protection planVegetative roofsSite & land use project electives.

IgCC Chapter 5Material Resource Conservation and Efficiency

Chapter 5

Material Resource Conservation and EfficiencyMaterial and Waste ManagementWaste management plan for construction phase Post occupancy recycling areas must be shown on plans.Materials and their properties. 55% of materials used in every project must be any combination of the followingUsed, Recycled, recycleabe, Bio-based or Indigenous.

Chapter 5

Material Resource Conservation and EfficiencyLamps: Limits mercury content in lampsService Life: Building service life plan to be included in construction documents. Not less than 25 years.Storage and handling of materials.Moisture Control: Requires specific inspection of foundation drainage systems, damproofing and waterproofing, flashings and roof coverings.Strawbale construction.Material related project electives.

IgCC Chapter 6:Energy Conservation, Efficiency & Atmospheric Quality

Chapter 6

Energy Conservation, Efficiency and Atmospheric QualityBuildings > 25,000 sq. ft. must use the performance based compliance pathUses Zero Energy Performance Index (zEPI) concept encourages use of renewable energy, cogeneration and zero net energy buildings. Buildings < 25,000 sq. ft. may use any of the following :Performance based pathPrescriptive based pathEnergy Use Intensity (EUI) pathMust be in top 10% of EPAs Target Finder ProgramOutcome based path Estimated energy use relative to actual energy use, based on a 12 month period after C of O.

Chapter 6

Energy Conservation, Efficiency and Atmospheric Quality

Major section topics:Energy performance and peak power.Atmospheric impacts reduced CO2e emissions.Metering, monitoring and reporting.Auto-Demand/Response strategies.Building envelope systems.

Chapter 6

Energy Conservation, Efficiency and Atmospheric Quality

Major section topics (cont.):Mechanical and Svc Water Heating systemsElectrical power and lightingAppliances and equipmentRenewable energy.Commissioning and maintenance.Energy related project electives.

IgCC Chapter 7:Water Resource Conservation and Efficiency

Chapter 7

Water ResourceConservation & Efficiency

Ch 7 major section topics:Plumbing systems and conservation measures.Landscaping and irrigation addressed in Chapter 4.Specific water savings measures.Use of grey water, rain collection and storage.

*

Chapter 7 Water Resource Conservation & Efficiency Ch 7 major section topics (cont.):Fixtures, fittings, equipment & appliancesHVAC systems and equipment efficiencyWater treatment system efficiencySpecific topics (e.g. Submetering, fountains)Nonpotable water useAlternative water sources

Chapter 8

Indoor Environmental QualityChapter 8 major section topics:Building construction features, operations & maintenanceHVAC system requirementsConstruction phase emissions and pollution control, HVAC flush outAsbestos use preventionMaterial emissions & pollutant controlIAQ measures Sound transmissionViews to exterior and daylighting

IgCC Chapter 9:Commissioning, Operation & Maintenance

Chapter 9 major section topics:Pre-Occupancy inspections and testing.Owner or tenant post occupancy operations.Commissioning.Building maintenance.Education of building users.

Chapter 9

Commissioning,Operation & Maintenance

*

BUILDING COMMISSIONING

A process that verifies and documents that the selected building systems have been designed, installed, and function according to the owners project requirements and construction documents, and to minimum code requirements except as noted herein.

APPROVED

Acceptable to the code official or authority having jurisdiction.

APPROVED AGENCY

An established and recognized agency regularly engaged in conducting tests or furnishing commissioning services, where such agency has been approved.

REGISTERED DESIGN PROFESSIONAL IN RESPONSIBLE CHARGE

A registered design professional engaged by the owner to review and coordinate certain aspects of the project, as determined by the building official, for compatibility with the design of the building or structure, including submittal documents prepared by others, deferred submittal documents and phased submittal documents.

Section 902Approved Agency902.1.1 Independence. An approved agency shall be objective, competent and independent from the contractor responsible for the work being inspected. The agency shall also disclose possible conflicts of interest so that objectivity can be confirmed.

IndependenceEquipmentPersonnelInternal document confidential information for ICC

Section 902Approved Agency902.1.2 Equipment. An approved agency shall have adequate equipment to perform the required commissioning. The equipment shall be periodically calibrated.902.1.3 Personnel. An approved agency shall employ experienced personnel educated in conducting, supervising and evaluating tests and commissioning.

IndependenceEquipmentPersonnelInternal document confidential information for ICC

Modeled after Special inspections criteria in Chapter 17 of the IBC and Commissioning criteria found in the IECC

Table 903.1 Commissioning Plan List of items for which commissioning is required or encouragedContains columns which distinguish between pre-occupancy and post-occupancy commissioningCommissioning requirements extend well beyond the energy realm, including site, materials and water, etc.

Section 903 Commissioning

*

903.1.1 Pre occupancy reportThe approved agency shall furnish commissioning reports.Prior to the issuance of a Certificate of occupancy, a final commisioning report shall be submitted to and accepted by the code official.

Section 903 Commissioning

Pre commissioning report

*

903.1.2 Post occupancy reportPost occupancy reports required.Within 30 months of the issuance of the Certificate of Occupancy a post commissioning report shall be submitted to the owner and made available to the code official.

Section 903 Commissioning

Post commissioning report

*

Internal document confidential information for ICCTABLE 903.1COMMISSIONING PLAN

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.

Chapter 4: Site development and land useLandscape irrigation systemsXNoneField inspectionInstallationNone402.3.3406.6Vegetative Roofs and TerracesXXField inspection and reportInstallation of protective membranes, base materials, soils and vegetation24 months404.3.2Site LightingXNoneTesting and reportInstallationNone405

Internal document confidential information for ICCTable 903.1 Commissioning Plan (continued)

Internal document confidential information for ICCTable 903.1 Commissioning Plan (continued)

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.Chapter 6 - EnergyEnergy consumption, monitoring, targeting and reportinga. Monitoring systemXNoneInspection and verificationDuring construction and prior to occupancyNone604b. CalibrationXXTesting and review and evaluation or test reportsDuring commissioningAnnually604, 611Mechanical systems completion all buildingsa. Air system balancing provide the means for system balancingXNoneInspection and verificationDuring construction and prior to occupancyNone612.1.2.1 and through reference to IECCb. Hydronic system balancing provide means for system balancingXNoneInspection and verificationDuring construction and prior to occupancyNone612.1.2.2 and through reference to IECCc. Duct system testingXNoneTesting, testing report and verification of resultsDuring construction and/or at final inspection.None613.5.3 and through reference to the IECC

Internal document confidential information for ICCTABLE 903.1COMMISSIONING PLAN (continued)

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.Chapter 6 Energy (continued)d. Mechanical system manuals construction documents to require O&M manualXNoneVerification of construction documentsPlan reviewNone612.1.5.2Mechanical systems buildings over 5,000 square feet total building floor areaa. Commissioning required and noted in plans and specificationsXNoneVerification of construction documentsPlan reviewNone612.1b. Documentation of required commissioning outcomesXNoneVerification with the building ownerSubsequent to completion of all commissioning activitiesNone612.1

Internal document confidential information for ICCTable 903.1 Commissioning Plan (continued)

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.Chapter 6 Energy (continued)Mechanical systems buildings over 5,000 square feet total building floor areac. Preparation and availability of a commissioning planXNoneVerification with the RDP or commissioning agentBetween plan review and commissioning initiationNone612.1.1d. Balance HVAC systems (both air and hydronic)XXHVAC system installer/contractor or commissioning agentAfter installation of HVAC systems and prior to occupancyTBD612.1.2e. Functional performance testing of HVAC equipmentXXHVAC system installer/contractor or commissioning agentAfter installation of HVAC systems and prior to occupancyTBD612.1.3

Internal document confidential information for ICCTable 903.1 Commissioning Plan (continued)

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.Chapter 6 Energy (continued)Mechanical systems buildings over 5,000 square feet total building floor areaf. Functional performance testing of HVAC controls and control systemsXXHVAC system installer/contractor or commissioning agentAfter installation of HVAC systems and prior to occupancyTBD612.1.3.2g. Preparation of preliminary commissioning reportNoneXHVAC system installer/contractor or commissioning agentNoneSubsequent to commissioning612.1.4h. Acceptance of HVAC systems and equipment/system verification reportNoneXBuilding ownerNoneLetter verifying receipt of the commissioning report612.1.4.1i. Preparation and distribution of final HVAC system completion - Documentation that construction documents require drawings, manuals, balancing reports and commissioning report be provided to the owner and that they have been providedNoneXRDP, contractor or commissioning authorityNone90 days after final certificate of occupancy612.1.5

Internal document confidential information for ICCTable 903.1 Commissioning Plan (continued)

Construction or System requiring VerificationPre Occ.PostOcc.MethodOccurrenceSection/Ref. Std.Pre Occ.Post Occ.Chapter 6 - LightingAuto demand reduction control system functionalityXXFunctional TestingFinal Inspection18-24 months605.4Plug load controlsXNoneFunctional TestingFinal InspectionNone609.6Connection of appliances to switched receptaclesXField InspectionNone18-24 months609.6Specified transformer nameplate efficiency ratingXNoneField InspectionFinal InspectionNone609.8.1.1Verification of lampXXField InspectionFinal Inspection18-24 months609.10Verification of ballastXNoneField InspectionFinal InspectionNone609.10Lighting controlsInstallationXNoneField InspectionPost InstallationNone609.11CalibrationXXSystem Installer/Contractor or Commissioning AgentPost Installation18-24 months612.2

Loosely based on the provisions of the IBC for existing buildings: For alterations/renovations: whatever is changed must meet current IgCC requirements.Unaltered components can remain as they are.Additions are treated much like new construction: applicable requirements of the IgCC must be satisfied.Section 1002.1: Prohibits the construction of additions to buildings in flood hazard areas.Exception: where all habitable space is located at least 1 foot above flood elevation.

Chapter 10

Existing Buildings*

Alterations to Existing Buildings: Basic prescriptive requirements addressing:LeaksDefective equipment and systemsExtensive prescriptive list limited to 10% of the cost of alterations.Triggered by any change of occupancy or alteration.

Chapter 10

Existing Buildings*

For more information and updates check the ICC websitewww.iccsafe.org/igcc

Frequently Asked Questions

What about residential properties?The ICC co-developed the National Green Building Standard (NGBS), otherwise known as ICC 700-2008, with the National Association of Home Builders (NAHB). It is not referenced in the IgCC. Residential buildings that are not covered in the IRC must the IGCC.

Who is supporting the ICC in this effort?The AIA and ASTM-International are the Cooperating Sponsors for this initiative, and as such have an active role in the development process. Other organizations who participated in the development include the U.S. Green Building Council (the purveyor of the LEED rating system), the Green Buildings Initiative (GBI), ASHRAE as well as state and local officials. Well over 100 organizations and individuals participated in the development effort.Standard 189.1, included as a jurisdictional compliance option, was developed by ASHRAE, USGBC and the Illuminating Engineering Society (IES). Those organizations have now joined in the effort to promote the IGCC.

How does the development process work?The ICC Board created a Sustainable Building Technology Committee (SBTC) composed of 28 individuals from multiple sectors, to draft Public Version 1.0. The SBTC conducted open meetings around the U.S. between July 2009 and January 2010, creating IGCC Public Version 1.0 as a tool for jurisdictions wishing to develop a code based on the ICC process.

A Public Version 2.0 was released in November 2010 after public comments and hearings. It is published for comments now.

In 2011, Code Development and Final Action Hearings will deliver the 2012 IGCC.

How does the development process work?This process tracks the development of the other codes in the I-Codes series. Once the 2012 Code is issued, it will be revisited every three years along with the other I-Codes, through the two-hearing process used to update all of the I-Codes.

What is the difference between the IGCC and other systems and standards such as LEED, Green Globes, etc. ?The IGCC creates a regulatory framework for new and existing commercial and high-performance buildings. Rating systems are not written in the form of enforceable codes, acting as optional approaches, such as awarding points based on the inclusion of certain design elements and other features with the assumption is that the combination and concentration of favored elements will result in a positive environmental impact. The IGCC will build on that foundation to ensure that measurable building performance and an adherence to building safety will be featured in the model code language. It is anticipated that the IGCC will look to existing rating systems and standards as resources in developing the regulatory framework.

How will the IGCC differ from other International Codes such as the International Building Code (IBC)?One of the values of the IGCC is that it will be designed to coordinate and integrate with existing I-Codes. The IGCC includes various levels for jurisdictions to apply unique green requirements to commercial buildings. The IGCC will not replace the IBC but rather can be adopted and used in conjunction with the adopted IBC, as well as all the other I-Codes.

Why is the ICC promoting its Green Construction Code when other options already exist?The development of a code occurs when there is a clear need indicated from regulators and others in the building safety industry. In the case of the IGCC, there has been an increasing call for an actual code that is clear and enforceable. We have heard this not only from our members in local and state government, but from stakeholders across the spectrum. This is why the AIA and the ASTM have joined the ICC as Cooperating Sponsors. For example, architects want a code book that will guide their design activities just like the other I-Codes. The inclusion of ANSI/ASHRAE/USGBC/IES Standard 189.1 provides the jurisdiction the option of using either the IGCC or Standard 189.1.

For more information and updatescheck the ICC websitewww.iccsafe.org/igcc

Explain the ICC and the I-codesEncouraging lifestyle changes.***Key operative is overlay*Separate permits are not required. It is the intent of IgCC that it be enforced with the processes already in place for the building, plumbing, mechanical and electrical codes.*The one I like is Bicycle parking long term that is more than 4 hours. Also the definition of straw. That is the material that the first little pig built is house of.*The one I like is Bicycle parking long term that is more than 4 hours. Also the definition of straw. That is the material that the first little pig built is house of.**Example follows*Jurisdiction selects the number of electives to be used on all buildings from 1 to 14*Jurisdiction selects how many electives must be chosen.Can affect existing zoning and should be coordinated with zoning.*Bicycle parking is required for various occupancies for instance Mercantile 1 per 25,000 sq.ft. but at least two short term and 1 per 50,000 for long term. Mandatory not an elective.*Our Save program can help evaluate green building material. Not less than 50% of all construction waste *Our SAVE program can help evaluate green building material, more on that later. *Building thermal envelope insulation must exceed the IECC by 10%. The 2012 IECC already exists the 2003 by 30%. Air leakage tests mandatory IAW ASTM E779. Blower Door test.*Maximum fixture flow rates somewhat less than IPC. But aggregate potable water consumption is mandatory to be 20% less than the IPC rates. Can be achieved by more efficient fixtures or grey water or both. The jurisdiction can elect to require 30% or 40 % less.*Submetering - further reductions in the flows of some fittings will likely be necessary (below the values in Table 702.1) to achieve the required savings.

TABLE 702.1MAXIMUM FIXTURE AND FITTING FLOW RATESFOR REDUCED WATER CONSUMPTIONFIXTURE OR FIXTURE FITTING TYPE MAXIMUM FLOW RATEShowerhead2.0 gpm and WaterSense compliantLavatory faucet-private 1.5 gpm and WaterSense compliantLavatory faucet-public (metered) 0.25 gpcLavatory faucet-public (nonmetered) 0.5 gpmKitchen and bar sink faucets (non-residential) 2.2 gpmUrinal 0.5 gpf and WaterSense compliant or nonwater urinalWater closet 1.6 gallons per flushPrerinse Spray Valves 1.3 gpmDrinking Fountains (manual) 0.7 gpmDrinking Fountains (metered) 0.25 gpc

a. The effective flush volume of a dual-flush water closet is defined as the composite, average flush volume of two reduced flushes and one fullflush.b. Flow rate at a pressure of 80 psi.c. Flow rate at a pressure of 60 psi.d. Gallons per cyclee. Includes hand showers, body sprays, rainfall panels and jets. Showerhead(s) shall be supplied by automatic compensating valves that complywith ASSE 1016 or ASME A112.18.1/CSA B125.1 and that are specifically designed to function at the flow rate of the showerheads beingused.

*******There is a chapter 11 on existing sites, but we are not going to go there.*Encourage building officials, designers and builders to get involved.*