Tally is a life cycle assessment (LCA) tool that enables calculation of the environmental impacts of building material selections, directly in an Autodesk® Revit® model.

It enables users to assess the embodied environmental impact of the full building, as well as comparing different designs and materials, drawing on the Tally materials database.  Effective use of hte tool can help engineers, architects and designers to understand trade-offs between different material choices, which major impacts should be prioritised, and identify opportunities for material re-use or recycling.