The Guardian Sustainability Calculator helps you understand the environmental performance of glass according to a range of environmental rating programs, such as LEED. Simply enter some basic project details and click "Add Product" to assess a particular glass. Then select the sustainability program or programs you are interested in and click "Evaluate". The result can be viewed immediately and is also available to print. Please note, use of this tool does not confirm product certification.

Project Name *
Address *
City, State, Zip *
For international projects, regional calculations and credits wil not show since the projects will fall outside of the radius distances for LEED and other Rating Systems.
Living Building ChallengeSM
LEED®—an acronym for Leadership in Energy and Environmental Design™—is a registered trademark of the U.S. Green Building Council®.
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