ASTM E1557-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E 1557 – 05
Standard Classification for
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Building Elements and Related Sitework—UNIFORMAT II
This standard is issued under the fixed designation E 1557; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 964 Practice for Measuring Benefit-to-Cost and Savings-
to-Investment Ratios for Buildings and Building Systems
1.1 This standard establishes a classification of building
E 1057 Practice for Measuring Internal Rate of Return and
elements and related sitework. Elements, as defined here, are
Adjusted Internal Rate of Return for Investments in Build-
major components common to most buildings. Elements usu-
ings and Building Systems
ally perform a given function, regardless of the design speci-
E 1074 Practice for Measuring Net Benefits and Net Sav-
fication, construction method, or materials used. The classifi-
ings for Investments in Buildings and Building Systems
cation serves as a consistent reference for analysis, evaluation,
E 1121 Practice for Measuring Payback for Investments in
and monitoring during the feasibility, planning, and design
Buildings and Building Systems
stages of buildings. Using UNIFORMAT II ensures consis-
E 1185 Guide for Selecting Economic Methods for Evalu-
tency in the economic evaluation of buildings projects over
ating Investments in Buildings and Building Systems
time and from project to project. It also enhances reporting at
E 1369 Guide for Selecting Techniques for Treating Uncer-
all stages in construction—from feasibility and planning
tainty and Risk in the Economic Evaluation of Buildings
through the preparation of working documents, construction,
and Building Systems
maintenance, rehabilitation, and disposal.
E 1804 Practice for Performing and Reporting Cost Analy-
1.2 This classification applies to buildings and related site
sis during the Design Phase of a Project
work. It excludes specialized process equipment related to a
E 2083 Classification for Building Construction Field Re-
building’s functional use but does include furnishings and
quirements, Office Overhead, and Profit
equipment.
2.2 ASTM Adjuncts:
1.3 The Classification incorporates three hierarchical levels
Discount Factor Tables, Adjunct to Practices E 917, E 964,
described as Levels 1, 2, and 3. Appendix X1 presents a more
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E 1057, and E 1074
detailed suggested Level 4 classification of sub-elements.
Computer Program and User’s Guide to Building Mainte-
1.4 UNIFORMAT II is an elemental format similar to the
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nance, Repair, and Replacement Database for Life-Cycle
original UNIFORMAT elemental classification. UNIFOR-
Cost Analysis,Adjunct to Practices E 917, E 964, E 1057,
MAT II differs from the original UNIFORMAT, however, in
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and E 1121
that it takes into consideration a broader range of building
types and has been updated to categorize building elements as
3. Terminology
they are in current building practice.
3.1 Definitions—For definitions of terms used in this clas-
2. Referenced Documents sification, refer to Terminology E 833.
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2.1 ASTM Standards:
4. Significance and Use
E 833 Terminology of Building Economics
4.1 This classification defines building elements as major
E 917 PracticeforMeasuringLife-CycleCostsofBuildings
components common to most buildings. The classification is
and Building Systems
the common thread linking activities and participants in a
building project from initial planning through operations,
maintenance, and disposal.
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This classification is under the jurisdiction of ASTM Committee E06 on
4.2 The users of UNIFORMAT II include owners, develop-
Performance of Buildings and is the direct responsibility of Subcommittee E06.81
ers, facilities programmers, cost planners, estimators, schedul-
on Building Economics.
ers, architects and engineers, specification writers, operating
Current edition approved May 1, 2005. Published May 2005. Originally
approved in 1993. Last previous edition approved in 2002 as E 1557 – 02.
and maintenance staff, manufacturers, and educators.
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The original UNIFORMAT classification was developed jointly by the General
Services Administration (GSA) and the American Institute of Architects (AIA).
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from ASTM International Headquarters. Order Adjunct No.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM ADJE091703.
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Standards volume information, refer to the standard’s Document Summary page on Available from ASTM International. Order Adjunct No. ADJE091701 for the
the ASTM website. 3.5 in. disk. Order Adjunct No. ADJE091702 for the 5.25 in. dis
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