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Southeastern Regional Building Commissioner’s Association

Southeastern Regional Building Commissioner’s Association. Overview of the International Green Construction Code (IgCC) Doug Connell International Code Council September 2011. An Adoptable, Useable and Enforceable code

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Southeastern Regional Building Commissioner’s Association

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  1. Southeastern Regional Building Commissioner’s Association Overview of the International Green Construction Code (IgCC) Doug Connell International Code Council September 2011

  2. An Adoptable, Useable and Enforceable code • Intended to reduce the negative impacts of the built environment on the natural environment • Addresses • Conservation of: • Natural resources • Materials • Energy • Water • Air & indoor environmental quality • Owner education What is the IgCC?

  3. Scope and Intent • Consistent and coordinated with the ICC family of Codes & Standards • Applicable to the construction of • New and existing buildings • All buildings other than residential buildings under the scope of the IRC • Intended to be enforced primarily by building officials – a system already in place nation wide • Intended to drive green building into everyday practice

  4. IgCC Concepts • The IgCC is nota rating system, nor is it intended to replace them. • The IgCC is codewhich is intended to be adopted on mandatorybasis. • Unlike most rating systems, the IgCC primarily consists of minimum mandatory requirements, just as other I-Codes.

  5. 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 fewbuildingsvery green? - Or - To have as largeapositive impact and as little anegative impact as possible on the total natural environment? Not just local, not just the U.S., but the entire planet. IgCC Concepts

  6. IgCC Concepts • Because the IGCC is intended to apply to both private sector and government owned buildings on a mandatorybasis – it • Raises the floor of sustainability for all commercial buildings. • Positions the IGCC to achieve environmental benefits on a massive scale – a scale not possible with voluntaryrating systems.

  7. IgCC: Detailedand Comprehensive 7 • 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 details • Irrigation system details • Rainwater catchment system details • Actual energy provisions

  8. 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

  9. 8: Indoor environmental quality 9: Commissioning, operation and maintenance 10: Existing buildings 11: Existing building sites 12: Referenced standards Appendices A: Optional Ordinance B: Greenhouse Gas Reductions in Existing Buildings C: Sustainability Measures D: Enforcement Procedures Chapter Topics

  10. Chapter 1 Administration 10 • SCOPE • New and existing construction • All 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-Codes • IBC, IFGC, IMC, IPC, IPMC, IFC, IWUIC, ICCPC, IEBC, IZC. .

  11. Chapter 1 Administration 11 • 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.

  12. Chapter 2 Definitions 12 • Shares some definitions which are common to other International codes. • Primarily provides definitions unique to the IgCC. • Examples: • Approved • Approved Agency • Building Commissioning • Construction Documents • Control • Daylight Control • Occupant Sensor Control

  13. Chapter 2 Definitions 13 • Demand Response, Automated • Energy Management and Control System • Registered Designer in Responsible Charge • Sequence of Operation

  14. 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.

  15. Chapter 3 15 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.

  16. Chapter 3 – Jurisdictional Requirements • Allows 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.

  17. Table 302.1Jurisdictional Requirements22 Choices affecting Chapters 4 through 10 17 • 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.)

  18. Table 302.1 Requirements Determined by the Jurisdiction 18

  19. Table 303.1Project Electives52 Electives affecting Chapters 4 through 8 19 • 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.

  20. Table 303.1Project Electives Checklist 20

  21. Table 303.1 - Project Electives Checklist 21

  22. Table 303.1 - Project Electives Checklist 22

  23. Chapter 3 Jurisdictional RequirementsProject ElectivesWhole Building LCA Project Elective 23 • 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.

  24. Chapter 4Site Development and Land Use Preservation of Natural Resources Protection by area: e.g. floodplains, conservation areas, park lands, agricultural lands, greenfields. Site design and development requirements: Pre-design site inventory and assessment Stormwater management, Landscape irrigation systems, Management of vegetation and soils Erosion control Site waste management plan.

  25. Chapter 4Site Development& Land Use Transportation impact. Walkways and bicycle paths Changing and shower facilities Bicycle parking and storage Vehicle parking Heat island mitigation. Site hardscape Roof coverings Light pollution mitigation. Detailed site development requirements. Subsurface graywater irrigation systems Vegetation and soil protection Soil reuse and restoration Landscape, soil and water quality protection plan Vegetative roofs Site & land use project electives.

  26. IgCC Chapter 5 Material Resource Conservation and Efficiency

  27. Chapter 5Material Resource Conservation and Efficiency Material and Waste Management Waste management planfor 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 following Used, Recycled, recycleabe, Bio-based or Indigenous.

  28. Chapter 5Material Resource Conservation and Efficiency Lamps: Limits mercury content in lamps Service 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.

  29. IgCC Chapter 6: Energy Conservation, Efficiency & Atmospheric Quality

  30. Chapter 6Energy Conservation, Efficiency and Atmospheric Quality Buildings > 25,000 sq. ft. must use the performance based compliance path Uses 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 path Prescriptive based path Energy Use Intensity (EUI) path Must be in top 10% of EPA’s Target Finder Program Outcome based path Estimated energy use relative to actual energy use, based on a 12 month period after C of O.

  31. Chapter 6Energy 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.

  32. Chapter 6Energy Conservation, Efficiency and Atmospheric Quality Major section topics (cont.): Mechanical and Svc Water Heating systems Electrical power and lighting Appliances and equipment Renewable energy. Commissioning and maintenance. Energy related project electives.

  33. IgCC Chapter 7: Water Resource Conservation and Efficiency

  34. Chapter 7Water 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.

  35. Ch 7 major section topics (cont.): • Fixtures, fittings, equipment & appliances • HVAC systems and equipment efficiency • Water treatment system efficiency • Specific topics (e.g. Submetering, fountains) • Nonpotable water use • Alternative water sources Chapter 7Water Resource Conservation & Efficiency 35

  36. Chapter 8Indoor Environmental Quality Chapter 8 major section topics: Building construction features, operations & maintenance HVAC system requirements Construction phase emissions and pollution control, HVAC flush out Asbestos use prevention Material emissions & pollutant control IAQ measures Sound transmission Views to exterior and daylighting

  37. IgCC Chapter 9: Commissioning, Operation & Maintenance

  38. Chapter 9Commissioning,Operation & Maintenance 38 Chapter 9 major section topics: Pre-Occupancy inspections and testing. Owner or tenant post occupancy operations. Commissioning. Building maintenance. Education of building users.

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

  40. 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.

  41. 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.

  42. 902.1.1 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. Section 902Approved Agency Independence Equipment Personnel

  43. 902.1.2 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. Section 902Approved Agency Independence Equipment Personnel

  44. Section 903 Commissioning 44 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 encouraged • Contains columns which distinguish between pre-occupancy and post-occupancy commissioning • Commissioning requirements extend well beyond the energy realm, including site, materials and water, etc.

  45. Section 903 CommissioningPre commissioning report 45 903.1.1 Pre occupancy report The 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.

  46. Section 903 CommissioningPost commissioning report 46 903.1.2 Post occupancy report Post 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.

  47. TABLE 903.1 COMMISSIONING PLAN

  48. Table 903.1 Commissioning Plan (continued)

  49. Table 903.1 Commissioning Plan (continued)

  50. TABLE 903.1 COMMISSIONING PLAN (continued)

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