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Standard 189.1-2100. Southern Alberta Chapter T. David Underwood, P.Eng., FASHRAE November 20, 2012. TEACH. ASHRAE Will Give You the World. Give Back to ASHRAE. NETWORK. LEARN. GROW. SHARE.

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standard 189 1 2100

Standard 189.1-2100

Southern Alberta Chapter

T. David Underwood, P.Eng., FASHRAE

November 20, 2012

ashrae will give you the world


ASHRAE Will Give You the World

Give Back to ASHRAE





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standard 189 1
Standard 189.1



Practical use

what is standard 189 1
What is Standard 189.1?

A design standard not a rating system

Developed in ANSI model code language

Applies to all buildings except low-rise residential (same as ASHRAE/IES Standard 90.1)

Optional compliance path to the International Green Construction Code

standard 189 1 provides
Standard 189.1 provides
  • High-performance green buildings minimum requirements:
      • Mandatory criteria


      • Performance options
      • Prescriptive options
  • Evidence based requirements that complement green building rating programs
sponsors and project committee
Sponsors and Project Committee
  • Sponsor and co-sponsors:
    • ASHRAE
    • USGBC (U.S. Green Building Council)
    • IES (Illuminating Engineering Society)
    • Project committee: 35+ voting members ; variety of:
        • disciplines
        • industries
        • organizations
standard 189 1 building blocks
Standard 189.1 Building Blocks



























ashrae standard 189 1 2011
ASHRAE Standard 189.1-2011


“…Choice of the construction team to use IGCC or Std. 189.1“ (International Green Construction Code)

standard 189 1 sections
Standard 189.1 Sections

§1.0 through §4.0 cover the Purpose, Scope, Definitions and Administration

§5.0 through §10 are the working sections

1 o0 purpose
§1.o0 Purpose

To provide minimum requirement for:

  • Siting
  • Design
  • Construction
  • Planning for operation

….of high performance green buildings.

2 0 scope
§2.0 Scope

2.1 Provides minimum criteria for:

a. New

1. Buildings

2.Portions of buildings or

3.Systems & equipment in existing buildings

b. Site sustainability, water use efficiency, energy efficiency, indoor environmental quality (IEQ), atmospheric impact, and resources.

2.2 Doesn’t cover single family dwellings or non water or energy use buildings.

2.3 Doesn’t supersede any health & safety requirements

4 0 administration and enforcement
§4.0 Administration and Enforcement

4.1 Buildings shall comply with mandatory requirements in Sections 5 through 11

4.1.1 Normative appendices are mandatory

4.1.2 Informative appendices offer further information

compliance paths
Compliance Paths

Prescriptive Path



(simple option, very few calculations)

(more options, but more effort)

Performance Path



5 0 site sustainability
§5.0 Site Sustainability

Mandatory Provisions

  • Allowable sites with limitations for Greenfield, Brownfield, orGreyfield
  • Mitigation of heat island effect including:% hardscape

solar reflectance index (SRI)

natural vegetation and

shading by structures

5 0 site sustainability1
§5.0 Site Sustainability

Mandatory Provisions (cont)

  • Light pollution reduction includes:

backlight, uplight and glare (all tabularized)

  • Invasive plants removal
  • Mitigation of transportation impacts

Connections of primary building entrances to pedestrian walkway for access to public ways or transit stops

5 0 site sustainability2
§5.0 Site Sustainability

Prescriptive Option

-Minimum 40% of site area shall have effective pervious area

-20% of area shall be maintained as Greenfield

Performance Option

- For existing buildings 20 % of average rainfall to be managed

- For new buildings on Greenfield or Brownfield sites 40% of rainfall to be managed.

-For all other sites manage 50% of rainfall

6 0 water use efficiency
§6.0 Water Use Efficiency
  • Mandatory Provisions
    • Bio-diverse & adapted plantings for 60% of landscape
    • Hydrozoning
    • Smart irrigation controllers
    • Plumbing fixtures and appliances standards
    • Efficient drift eliminators on cooling towers and condensate collection for HVAC systems
    • Monitoring devices with data storage retrieval requirements
6 0 water use efficiency1
§6.0 Water Use Efficiency
  • Prescriptive Option
      • Cooling tower and blow down rates
      • High efficiency Energy Star cooking equipment
      • Only air cooled refrigeration equipment
  • Performance Option
      • Site water reduction:
        • <35%potable water for irrigation
        • Proposed use < [mandatory + prescriptive]
7 0 energy efficiency
§7.0 Energy Efficiency
  • Mandatory Provisions

§7.3.2 on-site renewable provisions for future installation

§7.3.3 energy consumption management and recording

  • Prescriptive Options
    • 189.1 supersedes 90.1
    • For building envelope, roof and solar heat gain coefficient (SHCG)
7 0 energy efficiency cont
§7.0 Energy Efficiency (cont)

§7.4.3 HVAC

  • Based on Standard 90.1, but modified to gain improved energy performance over minimum code standards
  • Demand control ventilation (DCV) for occupied spaces. (Lower occupancy threshold than 90.1)
  • Economizers shown for equipment size and climate zone
  • Restricts amount of reheated or re-cooled air
  • Exceptions allowed from Standard 90.1
7 0 energy efficiency cont1
§7.0 Energy Efficiency (cont)

§ 7.4.6 Lighting

  • Lighting power allowances as per Std. 90.1 multiplied by the data in the table in this section
  • Occupancy sensors to be installed to reduce power to <50% for
    • Hotel, motel hallways
    • Storage stack aisles
    • Library stacks
  • Exterior lighting control based on time of day use

§ 7.4.7 Other Equipment

  • High efficiency motors, appliances and Energy Star rated products required
7 0 energy efficiency cont2
§7.0 Energy Efficiency (cont)

§ 7.5

  • Performance option requires
    • both energy cost budget method and CO2 equivalent


    • Prescriptive paths of Section 5, 6 and 8 that reduce energy requirements

- Refer to Normative Appendix D for the building model guidelines

Proposed Performance < (Mandatory + Prescriptive)

8 0 indoor environmental quality ieq
§8.0 Indoor Environmental Quality (IEQ)
  • Key Items
    • Outdoor Airflow
    • Tobacco Smoke Control
    • Outdoor Air Monitoring
    • Filtration and Air Cleaning
    • Day lighting
    • Thermal Comfort
    • Acoustics
    • Vibration
9 0 impact on atmosphere materials and resources
§9.0 Impact on Atmosphere, Materials and Resources
  • Mandatory
    • Construction waste management
        • Divert 50% of non-hazardous waste, demolition debris
        • Limit total waste generated per floor
    • No CFC’s; fire suppression systems contain no ozone depleting substances (CFCs, HCFCs, Halons)
  • Prescriptive Option
        • Reduced impact materials (recycled, regional, bio-based)
  • Performance Option
    • LCA per ISO 14044 and must include land use, resource use, climate change, ozone layer depletion, human health, ecotoxicity, smog, acidification, eutrophication
    • Must show 5% gain in at least two categories
10 0 construction and plan for building operation
§10.0 Construction and Plan for Building Operation
  • Only section where all requirements are mandatory
  • Mandatory CONSTRUCTION requirements include:
      • Protecting materials that might absorb water
      • Installing no materials with visual bio-growth
      • Placing vehicle staging areas away from air intakes for hospitals, schools, residences, etc. that may adjoin the project
10 0 construction and plan for building operation cont
§10.0 Construction and Plan for Building Operation (cont)
  • Mandatory OPERATION requirements include:
      • Site sustainability
      • Water use efficiency
      • Energy efficiency
      • Indoor environmental quality

… and Commissioning to assure verification of construction of these items as specified earlier in the Standard

In addition to:

      • Maintenance
      • Service Life
      • Transportation Management
10 0 construction and plan for building operation c0nt
§10.0 Construction and Plan for Building Operation (c0nt)
  • Site Sustainability
    • Maintenance procedures for healthy vegetation growth
  • Water Use Efficiency
    • Measurement and verification of water use benchmarked against criteria like Energy Star Portfolio Manager
10 0 construction and plan for building operation cont1
§10.0 Construction and Plan for Building Operation (cont)
  • Energy Use Efficiency
    • Initial measurement & verification using devices as specified in§ 7.0
    • Procedures to track and assess energy:
      • Hourly load profiles
      • Monthly average daily load profiles
      • Monthly and annual energy use
      • Monthly and annual peak demand
10 0 construction and plan for building operation cont2
§10.0 Construction and Plan for Building Operation (cont)
  • Indoor Environmental Air Quality
    • Outdoor Airflow verified by:
      • Handheld devices or permanent stations
      • Procedures to react if 15% lower than minimum specified rates
    • Indoor Air Quality
      • Air cleaning equipment in restricted areas
      • Biennial monitoring through testing, occupant perception or complaint/response reports
    • Green cleaning materials and methods
10 0 construction and plan for building operation cont3
§10.0 Construction and Plan for Building Operation (cont)
  • Maintenance
    • Standard 180 for planning
    • Documentation of plan via electronic storage and maintenance manuals
  • Service Life
    • Maintenance and repair on structure, envelope and hardscape
10 0 construction and plan for building operation cont4
§10.0 Construction and Plan for Building Operation (cont)
  • Transportation
    • Preferred parking for car pools, etc.
    • Copy of plan distributed to all building occupants
    • Access to emergency transportation
    • If leased, parking space not in the lease rate
standard 189 1 practical use
Standard 189.1 Practical Use
  • Requires participation of all parties through:
    • Commissioning as specified in Guideline O including:
      • Well developed Owners Project Requirements (OPR)
  • Leads to Integrated Building Design (IDB) as an ideal approach to affordable Green Buildings

Standard 189.1-2011 raises the bar for the design of high performance Green Buildings

The many players that contributed to developing this standard believe that it provides a realistic platform for responsible design