FAQ

Tally and Revit

What versions of Revit are compatible with Tally?

The current release of Tally is compatible with Revit 2013, 2014, 2015, 2016, and 2017.

What Revit categories are compatible with Tally?

Tally is compatible with Ceilings, Curtain Wall Mullions, Curtain Panels, Doors, Floors, Railings, Roofs, Stairs, Structural Foundations, Structural Framing, Structural Columns, Walls, and Windows.

Where does Tally save information?

Tally saves the material definitions you build in the Revit family types of your model. As long as you save your Revit model, these definitions will be available the next time you use Tally, and new quantities will be calculated based on any changes you have made to the model.

Does Tally work with linked models?

Yes. Tally will pull any information you have saved in a linked model, provided it is loaded in the current session. Because Tally saves information in the Revit family types of your model, you can only edit the Tally definitions of the model that you have open. So if you want to edit the Tally definitions for a linked model, you must open that model directly, save it, and reload it.

Does Tally work with Revit Structure?

Yes and no. While the initial development of Tally has focused on Revit Architecture, several of the Revit categories used in the beta version are compatible with Revit Structure. We are considering improvements to extend this functionality.

Does Tally support transferring project standards?

Not yet. However, it is a subject of ongoing development.

Does Tally support project templates?

Yes. Tally now has the ability to load unused family types so that you can populate Revit templates, whose definitions will be copied automatically to any new projects you start.

What types of environmental impacts does Tally measure?

Tally is capable of tracking and reporting environmental impacts across a range of categories and characterization schemes. Presently, the tool reports impacts according to TRACI 2.1 (Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts), a characterization scheme and methodology developed by the US EPA and commonly used for LCA work in North America. In the future, the tool may be expanded to include other midpoint and endpoint characterization schemes, such as CML, IMPACT, ReCiPe, EcoIndicator and others.

Where can I get more information about impact categories?

For a more in-depth description of the TRACI framework, including a description of calculation methodology and a thorough definition of all impact categories and units, please refer to this report published by the EPA. Additionally, all reports produced by Tally include an Appendix that defines common LCA terminology, calculation methodology, and impact categories used by the tool. Additional data resources are available on the Tally website under Methods.

What is the system boundary of a Full Building Assessment in Tally?

Many tools presently on the market limit assessment to envelope, core, and shell. Tally allows users to increase the specificity of their assessments in line with the specificity of their models—including the ability to model finishes, custom assemblies, and novel materials—providing an opportunity for asking nuanced questions across a range of project types and scopes.

How much of the building life-cycle does Tally measure?

Tally captures cradle-to-grave impacts, which include the following life-cycle stages: manufacturing, transportation, maintenance and replacement, and end of life. The June 2016 release of Tally provides options to include impacts associated with construction and operational energy use for full building assessments.

Can I use Tally to meet LEED requirements?

Yes. Tally can be used to conduct LEED-compliant, cradle-to-grave Whole Building Life Cycle Assessments. Within LEED 2009, Tally can be used for the LEED MRpc63 credit. Tally is also approved for the new LEED v4 Building Life Cycle Impact Reduction credit.

While LEED only requires the modeling of core, shell, and envelope, Tally can also be used to ask a range of design questions and examine building materials and components at a greater scope and resolution than required by present guidelines for the LEED credit.

Tally Database

What is the source of the data in the Tally database?

Tally utilizes a custom-designed LCA database developed in collaboration between KT Innovations and thinkstep (formerly PE International). It combines material attributes, assembly details, and engineering and architectural specifications with environmental impact data. LCA modeling was conducted in GaBi 6 using GaBi databases and in accordance with GaBi database and modeling principles.

Does the Tally database include product-specific data?

The current version of the Tally database draws from and contains 78 product-specific EPDs, ranging from cladding systems to flooring. Tally will continue to expand the number of manufacturer-specific products as more manufacturer EPDs become available. Manufacturers interested in including their products in Tally should contact us.

Can I add materials to the Tally database?

Not yet. If there is a material that you can’t find, please contact us.

Can I customize the materials already in the Tally database?

In many cases, yes. Many of the entries in the Tally database let you customize both ingredients and quantities (e.g., concrete mix design and percentage of rebar). In addition to providing tables for common gauges, sections, and application rates, Tally also lets you manually define most quantities. You cannot add your own LCA data, however.

Does the Tally database include mechanical equipment?

Not yet.

Does the Tally database include conveyance equipment such as elevators and escalators?

Not yet.

Does the Tally database include structure?

Yes.

Does the Tally database include cost information?

No. Life Cycle Assessment is a methodology for comparing the relative environmental impacts of materials and processes. This methodology does not traditionally include costing information nor make any claims as to the appropriateness of materials selected by users in terms of cost, durability, structural soundness, or aesthetics. However, users may conduct their own life cycle cost analysis and productively use both types of assessment side by side to inform robust decision making.

Does the Tally database include information on chemicals of concern?

Presently, Tally reports environmental impacts and chemical hazards according to the TRACI 2.1 characterization scheme. However, Tally does not track specific product ingredients or chemicals of concern information associated with ingredients assessment and disclosure formats.

Purchasing Tally

Where can I buy Tally?

Users must download a 10-day trial available via the download page or Autodesk Exchange. After activating the 10-day trial, the user can purchase a full license through the link provided in Tally.

How much can I expect to pay for Tally?

A one-year, floating commercial Tally license costs $695 USD. Those intending to use Tally for non-commercial educational and research purposes can contact us to acquire a free Tally license.

Is academic pricing available?

Yes. The academic version is to be used for non-commercial purposes only and is fully featured. It is available free of charge at the discretion of KT Innovations. Those seeking a license for academic purposes should contact us.