Green Star FAQs


FAQ F-00308
Can projects use the Performance Pathway to size the rainwater tank for the Potable Water Prescriptive Pathway?

Yes, project teams may use the Performance Pathway to size the rainwater tank for 18B.2 Potable Water Prescriptive Pathway - Rainwater Reuse from Green Star - Design & As Built.

The project team must demonstrate that the rainwater tank is appropriately sized to the building. At a minimum, the project team should include and justify the following parameters in the Potable Water calculator:

  • expected water demand/consumption for rainwater
  • peak building occupancy 
  • building GFA
  • catchment area size
  • rainfall data

 

Documentation Requirements:

Please provide the following in your submission:

  • Documentation as per the Submission Guidelines
  • Calculation inputs, methodology, and results in determining the project's rainwater tank size
  • A copy of this FAQ




Rating Tools

This FAQ is related to the following Rating Tools, Categories or Credits:

  • Green Star - Design & As Built v1 / Water
  • Green Star - Design & As Built v1.1 / Water
  • Green Star - Design & As Built v1.2 / Water
  • Green Star - Design & As Built v1.3 / Water


Disclaimer

These FAQs are:

  • provided as additional technical assistance for Green Star users.
  • optional and free to use on Green Star projects.

When used on Green Star projects, make sure to:
  • state the FAQ number on the Submission Template.
  • click on "Download" to save the FAQ.
  • include the PDF in the submission.

The GBCA reserves the right to add or remove FAQ at our discretion.




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