Standing water can reflect drainage obstruction, roof geometry, substrate conditions, or other factors. The appropriate response depends on the cause and system requirements. A coating should not be assumed to correct the shape of the roof.
What to do next
Document where water collects and how conditions change after rainfall from a safe location. Ask whether drainage, structural, or assembly evaluation is needed. Compare proposals on the cause they address rather than accepting a generic promise to eliminate ponding.
Related Perkins guidance
Contact Perkins Roofing to discuss your roof and the appropriate next step.