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Full Description

Preview the complete Standard 90.2-2004 before buying. The version of the standard provided in this preview includes all addenda that were approved by the Board of Directors as of January 1, 2005. It does not include any addenda, interpretations, or errata approved after this date. The standard you purchase will include the most up-to-date additions.

Supersedes ANSI Approved Standard 90.2-2001

The purpose of this standard is to provide minimum requirements for the energy-efficient design of residential buildings.

This standard provides minimum energy efficiency requirements for the design and construction of (a) new residential dwelling units and their systems, and (b) where explicitly specified, 1.new portions of residential dwelling units and their systems, and 2.new systems and equipment in existing dwelling units.

Note: There are no requirements in this standard that apply to new portions of residential dwelling units and their systems, nor to new systems and equipment in existing dwelling units.

For the purposes of this standard, “residential dwelling units” include single-family houses, multi-family structures (of three stories or fewer above grade), and modular houses. This standard does not include “transient” housing such as hotels, motels, nursing homes, jails, and barracks, or manufactured housing.

This standard applies to the building envelope, heating equipment and systems, air-conditioning equipment and systems, domestic water-heating equipment and systems, and provisions for overall building design alternatives and tradeoffs.

This standard does not apply to (a) specific procedures for the operation, maintenance, and use of residential buildings; (b) portable products such as appliances and heaters; and (c) residential electric service or lighting requirements.

This standard shall not be used to abridge any safety, health, or environmental requirements.

Table of Contents

Units: Dual

 

Document History

  1. ASHRAE 90.2-2018


    Standard 90.2-2018 -- Energy-Efficient Design of Low-Rise Residential Buildings (ANSI Approved)

    • Most Recent
  2. ASHRAE 90.2-2007


    Standard 90.2-2007 -- Energy Efficient Design of Low-Rise Residential Buildings (ANSI Approved)

    • Historical Version
  3. ASHRAE 90.2-2004

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    Standard 90.2-2004 -- Energy-Efficient Design of Low-Rise Residential Buildings (ANSI Approved)

    • Historical Version
  4. ASHRAE 90.2-2001


    Standard 90.2-2001 -- Energy-Efficient Design of Low-Rise Residential Buildings (ANSI Approved)

    • Historical Version
  5. ASHRAE 90.2-1993


    Standard 90.2-1993 -- Energy-Efficient Design of New Low-Rise Residential Buildings

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. ASHRAE 90.2-2004 Addenda c, d, e, and k

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    Addenda c, d, e, and k to Standard 90.2-2004 -- Energy-Efficient Design of Low-Rise Residential Buildings (ANSI Approved) -- Downloadable

  2. ASHRAE 90.2-2004 Addenda a, b, f, g, h, and i

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    Addenda a, b, f, g, h, and i to Standard 90.2-2004 -- Energy-Efficient Design of Low-Rise Residential Buildings (ANSI Approved) -- Downloadable