ANSI/ASHRAE/IES Standard 90.1-2010 Scope and Application

1. April 2011 – PNNL-SA-80144 ANSI/ASHRAE/IES Standard 90.1-2010 Scope and Application

2. Section 1 - Purpose To provide minimum requirements for the energy-efficient design of buildings except low-rise residential buildings

3. Scope & Application • Purpose (Section 1) • Scope (Section 2) • Definitions, Abbreviations & Acronyms(Section 3) • Administration & Enforcement (Section 4)

4. Why is Standard 90.1-2010 Important? • It replaces ANSI/ASHRAE/IESNA Standard 90.1-2007 • It is the reference standard for the commercial chapter of the 2012 IECC • It is the professional “standard of care” set by ASHRAE consensus

5. Section 2 - Scope New buildings and their systems

6. Section 2 - Scope (cont’d) New portions of buildings and their systems (additions) addition: an extension or increase in floor area or height of a building outside of the existing building envelope.

7. Section 2 - Scope (cont’d) New systems and equipment in existing buildings (alterations) alteration: a replacement or addition to a building or its systems and equipment; routine maintenance, repair, and service or a change in the building’s use classification or category shall not constitute an alteration.

8. Section 2 - Scope (cont’d) New equipment or building systems part of industrial or manufacturing processes

9. Section 2 - Scope (cont’d) • Envelope must comply if • heated by a heating system with an output capacity ≥ 3.4 Btu/h-ft2 or • cooled by a cooling system with a sensible output capacity ≥ 5 Btu/h-ft2 • Virtually all mechanical, power, and lighting systems are covered • Examples include • heating, ventilating and air conditioning • service water heating • electric power distribution • metering provisions

10. Section 2 – Scope Exception What does not apply • Too little heating or cooling • Single-family, multifamily of three stories or less, manufactured or modular homes • Buildings that don’t use electricity or fossil fuel

11. Section 3 Definitions, Abbreviations, and Acronyms Certain terms, abbreviations, and acronyms are defined in this section for the purposes of this standard • 15 pages of definitions • 1 page of abbreviations and acronyms • Example: • COP: coefficient of performance • Defined terms are italicized in text of standard • Example: • boiler: a self-contained low-pressure appliance for supplying steam or hot water.

12. Section 4 Administration and Enforcement Overall statement of what must comply • New Buildings • Additions to Existing Buildings • Alterations of Existing Buildings • Replacements of Portions of Existing Buildings • Changes in Space Conditioning Administrative Requirements • Permits • Enforcement • Local

13. Section 4 Administration and Enforcement Compliance • New buildings • Additions to existing buildings • Exceptions • Trade-offs will be allowed • Alterations to existing buildings • Exceptions • Designated historically significant • Annual energy consumption

14. Section 4Exceptions for Alterations Buildings that are specifically designated as historic • by the adopting authority or • on the National Register of Historic Places or • eligible for listing by the U.S. Secretary of Interior If the building’s annual energy consumption is the same as a building that meets the requirements of Sections 5-10 • verified by a design professional using methods acceptable to the authority having jurisdiction

15. Section 4 Administration and Enforcement Compliance • Replacement of portions of existing buildings • Changes in space conditioning Compliance Documentation • Construction Details • Supplemental Information • Manuals • Labeling of Materials and Equipment • Fenestration, doors, insulation, mechanical equipment, and packaged terminal air conditioners

16. Section 4 Administration and Enforcement - Inspections Inspection Items • Wall insulation after the insulation and vapor retarder are in place but before concealment • Roof/ceiling insulation after roof/insulation is in place but before concealment • Slab/foundation wall after slab/foundation insulation is in place but before concealment • Fenestration after all glazing materials are in place • Continuous air barrier after installation but before concealment • Mechanical systems and equipment and insulation after installation but before concealment • Electrical equipment and systems after installation but before concealment

17. Structure of 90.1-2010 • Section 1 - Purpose • Section 2 - Scope • Section 3 - Definitions, Abbreviations, and Acronyms • Section 4 - Administration and Enforcement • Section 5 - Building Envelope • Section 6 - Heating, Ventilating, and Air Conditioning • Section 7 - Service Water Heating • Section 8 - Power • Section 9 - Lighting • Section 10 - Other Equipment • Section 11 - Energy Cost Budget Method • Section 12 - Normative References

18. Standard 90.1-2010 Appendices and Addenda • Rated R-Value of Insulation andAssembly U-Factor, C-Factor, and F-Factor Determinations • Building Envelope Climate Criteria • Methodology for Building Envelope Trade-Off Option in Subsection 5.6 • Climatic Data • Informative References • Addenda Description Information (Informative) • Performance Rating Method (Informative)