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NC-v4 SSc5:Heat island reduction

SSc5 Option 1: Non Roof component solely meeting criteria but satistfies required EQUATION Values

OPTION 1. Non-Roof and Roof (2 Points)

In this reference per the Reference Guide the criteria given is an equation referencing a higher value of the three variables (Non-Roof, High Reflecting Roof and Vegetative Roof) equating above the total Site area of both paving and Roof area.

1.  BACKGROUND CONSIDERATION

  • Though one of the easiest achievable credit; the client’s/ owner’s choice of roof materials color for this project at SRI 56 against the SRI 82 recommended value was in alignment to the company color coding rather than LEEDv4 technical requirements
  • On the other hand, the non-roof components ONLY (hard paved car park area, walkway paving at SR 0.33 or higher) meeting requirements and the resulting calculations per standard or weighted equations provides the values > Total Site Paving Area + Total Roof Area.

 

2.  CLARIFICATION REQUIRED​

The concern or clarity being desired for SSc5 - Option 1, is to determine if in this context where the Roof component does not meet the required SRI value per LEED v4 requirement and regarded as zero, also no vegetative roof exists but the Non-roof component with SR value meeting requirements and calculation per equation being of greater value than the Total Site Paving Area + Total Roof Area applies...

Does this still qualify the credit at the maximum 2 points score…?!

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emily reese moody
Sustainability Director, Certifications & Compliance
Jacobs
LEEDuser Expert
469 thumbs up

Wed, 03/13/2019 - 01:51

Hi Olawale,  If your project has already registered and has its credit forms available, I would test your calculations by filling the information in on the form and seeing if it confirms compliance. If you haven't registered yet, you can do this same exercise by going to the Credit Library for NC v4 for this credit, and downloading the Active Form to test your information. It sounds like your conclusions are valid, that you can still earn the points using the weighted calc method. The easiest way I can think to confirm is to just complete the form and see what it says.

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