KieranTimberlake and PE INTERNATIONAL Announce the Availability of Tally™: an Autodesk® Revit® Application for Life Cycle Assessment in Building Design

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New application helps achieve LEED® v4 Materials and Resources credit, MRc1.

Prominent architecture firm KieranTimberlake, in conjunction with PE INTERNATIONAL and Autodesk® Sustainability Solutions, announce the commercial availability of Tally™, a software application for Revit® that calculates the environmental impact of building materials. It is the only application to be fully integrated into Revit, providing architects, engineers, and building professionals with insight into how materials-related decisions made during design influence a building’s overall ecological footprint. Backed by the rigor and credibility of GaBi data from PE INTERNATIONAL, the application enables Life Cycle Assessment (LCA) on demand, documenting information across eight life cycle impact categories that align with LEED® v4 and other rating systems.

The commercial release follows a three-month public beta, in which nearly 500 users tested Tally and provided feedback on a broad range of design scenarios. The application is already garnering an enthusiastic response for its simplicity and ease of use.

Bringing Life Cycle Data to the Design Process
While working in a Revit model, Tally users correlate modeled elements to a custom LCA database built on GaBi, the largest environmental dataset for LCA used by leading corporations worldwide for both internal and critically-reviewed published studies. The database combines material attributes, assembly details, engineering and architectural specifications with environmental impact data, including branded information from manufacturer Environmental Product Declarations (EPDs).

“Finally we have a tool that enables data to keep pace with the speed of design,” states Heather Gadonniex, director of strategic business development for PE INTERNATIONAL. “Tally empowers design professionals to evaluate product impacts early in the design phase, enabling smarter material selection, and ultimately the construction of better, high-performance buildings.”

“Tally addresses a range of questions, whether comparing a whole building to a benchmark, exploring variations in building massing or construction type, or selecting finishes,” explains Roderick Bates, Tally development team leader at KieranTimberlake. “It can show where the largest environmental impacts reside within a design, and ways in which they compare across material options.”

“Tally is creating a tipping point for us, making Life Cycle Assessment a practical part of the design process and helping our clients make informed decisions when it matters,” says Don Davies, a Senior Principal at Magnusson Klemencic Associates.

Complete Bill of Materials
Buildings are composed of thousands of parts, each with their own origins and manufacturing flows, not all of which are accounted for in a Revit model. Tally helps paint a comprehensive portrait of a building and the products that go into it.

The specific quantities of materials like paint, sealants, fasteners, or grout not modeled in Revit are essential to a Life Cycle Assessment. Tally lets users assign materials and quantities, then leverage the tool to perform material takeoffs and provide a complete bill of goods for a building. Currently, no other environmental assessment tool provides this function.

New Features in the Tally Commercial Release
New enhancements and features have been released in the commercial version:

  •     Data can now be added to a Revit template to save time and promote firm-wide consistency.
  •     Elements from linked models can be filtered by phase and workset.
  •     New assemblies have been added, including a wide array of cladding panels, complete with hardware and finishes.
  •     New materials have been added, including actual GaBi life cycle data from product manufacturer EPDs.

Pricing and Information
Tally is available immediately as a 30-day free trial through Autodesk Exchange or, where video tutorials are also available. After 30 days, a license must be purchased to continue use. The cost per floating license is $1,200 USD annually. Educational licenses for non-commercial use are available by request to support(at)choosetally(dot)com.

About KieranTimberlake
Founded in 1984, KieranTimberlake is an award-winning architecture firm whose mission is the alchemy of art, science, analysis, and intuition. The firm’s projects include the programming, planning, and design of new structures as well as the conservation, renovation, and transformation of existing buildings, with special expertise in education, government, arts and culture, civic, and residential projects. KieranTimberlake is committed to research initiatives that push the practice of architecture forward, such as developing new fabrication techniques and building new tools for sustainable design. For more information:

PE INTERNATIONAL is the global leader in integrated product and enterprise sustainability performance with proven software solutions, sustainability databases and unparalleled consulting expertise. With more than 20 years of experience and 20 offices around the globe, PE INTERNATIONAL works with 1,500 clients including companies such as Bayer, Hewlett-Packard, Interface, Kraft Foods, Siemens, Unilever and Volkswagen. For more information:

Autodesk, the Autodesk logo, and Revit are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries.

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