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Determine the total square footage of your building's roof surface, then subtract the space taken up by mechanical equipment, such as mechanical rooms for boilers and chillers, HVAC units, PV, skylights and other rooftop systems. The remaining area is the

Determine the total square footage of your building's roof surface, then subtract the space taken up by mechanical equipment, such as mechanical rooms for boilers and chillers, HVAC units, PV, skylights and other rooftop systems. The remaining area is the focus of calculations for this credit.

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