Free Building Products Evaluation Software

Building for Environmental and Economic Sustainability (BEES) is a free software tool for selecting environmentally preferred, cost-effective building products. Environmental and economic performance are combined into an overall performance measure using the ASTM standard for Multi-Attribute Decision Analysis. Version 4.0 updates data on more than 200 products and adds 30 new products for review. It also offers users the option of a new set of consensus weights for scoring the environmental impact of individual building products.


BEES measures the environmental performance of building products by using the life-cycle assessment approach specified in the ISO 14040 series of standards. All stages in the life of a product are analyzed: raw material acquisition, manufacture, transportation, installation, use, and recycling and waste management.
Economic performance is measured using the ASTM standard life-cycle cost method, which covers the costs of initial investment, replacement, operation, maintenance and repair, and disposal.
To download BEES 4.0 or for more information, visit Building for Environmental and Economic Sustainability.