With demand for whole-building life-cycle assessment (LCA) increasing, a partnership of architects, LCA experts, and software developers has worked to release Tally—a new tool that allows designers to track environmental impacts in real time while creating models in the popular building information modeling (BIM) software Revit. Created by KieranTimberlake, PE International, and Autodesk (developer of Revit), the tool is currently being offered as a free public beta release.
“The really exciting thing about this tool is that it was developed by architects, for architects,” says Heather Gadonniex, director of business development at PE International. She clarifies that the tool is focused on embodied impacts from the entire life cycle of building products and materials—also the focus of the new LEED v4 credit relating to whole-building LCA—and doesn’t cover impacts from construction or operation of the building. “It’s not an energy modeling tool,” she explains—so adding two extra inches of insulation will likely increase embodied impacts in Tally, but only an energy model can determine whether better energy performance will offset those increases over the building’s life.
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