BUILDING ENERGY CODES UNIVERSITY ANSIASHRAEIES Standard 90 1
BUILDING ENERGY CODES UNIVERSITY ANSI/ASHRAE/IES Standard 90. 1 -2010 Scope and Application 1 April 2011 – PNNL-SABUILDING ENERGY CODES UNIVERSITY 80144 www. energycodes. gov/BECU
Section 1 - Purpose To provide minimum requirements for the energy-efficient design of buildings except low-rise residential buildings 2 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Scope & Application ü ü Purpose (Section 1) Scope (Section 2) Definitions, Abbreviations & Acronyms (Section 3) Administration & Enforcement (Section 4) 3 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Why is Standard 90. 1 -2010 Important? ü It replaces ANSI/ASHRAE/IESNA Standard 90. 1 -2007 ü It is the reference standard for the commercial chapter of the 2012 IECC ü It is the professional “standard of care” set by ASHRAE consensus 4 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 2 - Scope New buildings and their systems 5 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
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. 6 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
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. 7 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 2 - Scope (cont’d) New equipment or building systems part of industrial or manufacturing processes 8 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 2 - Scope (cont’d) ü Envelope must comply if • heated by a heating system with an output capacity ≥ 3. 4 Btu/h-ft 2 or • cooled by a cooling system with a sensible output capacity ≥ 5 Btu/h -ft 2 ü Virtually all mechanical, power, and lighting systems are covered • Examples include – – heating, ventilating and air conditioning service water heating electric power distribution metering provisions 9 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 2 – Scope Exception What does not apply ü Too little heating or cooling ü Single-family, multifamily of three stories or less, manufactured or modular homes ü Buildings that don’t use electricity or fossil fuel 10 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 3 Definitions, Abbreviations, and Acronyms Certain terms, abbreviations, and acronyms are defined in this section for the purposes of this standard ü 15 pages of definitions ü 1 page of abbreviations and acronyms – Example: • COP: coefficient of performance ü Defined terms are italicized in text of standard – Example: • boiler: a self-contained low-pressure appliance for supplying steam or hot water. 11 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 4 Administration and Enforcement Overall statement of what must comply ü ü ü New Buildings Additions to Existing Buildings Alterations of Existing Buildings Replacements of Portions of Existing Buildings Changes in Space Conditioning Administrative Requirements ü Permits ü Enforcement ü Local 12 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 4 Administration and Enforcement Compliance ü New buildings ü Additions to existing buildings – Exceptions • Trade-offs will be allowed ü Alterations to existing buildings – Exceptions • • Designated historically significant Annual energy consumption 13 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 4 Exceptions for Alterations Buildings that are specifically designated as historic ü by the adopting authority or ü on the National Register of Historic Places or ü 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 ü verified by a design professional using methods acceptable to the authority having jurisdiction 14 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 4 Administration and Enforcement Compliance ü Replacement of portions of existing buildings ü Changes in space conditioning Compliance Documentation ü ü Construction Details Supplemental Information Manuals Labeling of Materials and Equipment – Fenestration, doors, insulation, mechanical equipment, and packaged terminal air conditioners 15 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Section 4 Administration and Enforcement - Inspections Inspection Items ü Wall insulation after the insulation and vapor retarder are in place but before concealment ü Roof/ceiling insulation after roof/insulation is in place but before concealment ü Slab/foundation wall after slab/foundation insulation is in place but before concealment ü Fenestration after all glazing materials are in place ü Continuous air barrier after installation but before concealment ü Mechanical systems and equipment and insulation after installation but before concealment ü Electrical equipment and systems after installation but before concealment 16 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Structure of 90. 1 -2010 ü ü ü 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 17 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
Standard 90. 1 -2010 Appendices and Addenda A. Rated R-Value of Insulation and Assembly U-Factor, C-Factor, and F-Factor Determinations B. Building Envelope Climate Criteria C. Methodology for Building Envelope Trade-Off Option in Subsection 5. 6 D. Climatic Data E. Informative References F. Addenda Description Information (Informative) G. Performance Rating Method (Informative) 18 BUILDING ENERGY CODES UNIVERSITY www. energycodes. gov/BECU
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