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BEES 2.0 Building for Environmental and Economic Sustainability. Technical Manual and User Guide.

pdf icon BEES 2.0 Building for Environmental and Economic Sustainability. Technical Manual and User Guide. (2414 K)
Lippiatt, B. C.

NISTIR 6520; 150 p. June 2000.


Department of Housing and Urban Development, Washington, DC

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For more information about BEES visit the BEES Web Page:


building products; economic performance; environmental performance; green buildings; life cycle assessment; life cycle costing; multiattribute decision analysis; sustainable development


The BEES (Building for Environmental and Economic Sustainability) version 2.0 software implements a rational, systematic technique for selecting environmentally and economically balanced building products. The technique is based on consensus standards and designed to be practical, flexible, and transparent. The windows-based decision support software, aimed at designers, builders, and prodcut manufacturers, includes actual environmental and economic performance data for 65 building products across a range of functional applications. BEES measures the environmental performance of building products using the environmental life-cycle assessment approach specified in the latest versions of ISO 14000 standards. All stages in the life of a product are analyzed: raw material acquistion, manufacture, transportation, installation, use, and waste management. Economic performance is measured using the American Society for Testing and Materials (ASTM) standard life-cycle cost method (E 917), which covers the costs of initial investment, replacement, operation, maintenance and repair, and disposal. Environmental and economic performance are combined into an overall performance measure using the ASTM standard for Multiattribute Decision Analysis (E 1765). For the entire BEES analysis, building products are defined and classified based on the ASTM standard classification for building elements known as UNIFORMAT II (E 1557).