Planters can introduce irrigation, debris, weight, and access considerations near roofing. Their relationship to the membrane and drainage system should be reviewed rather than treated as ordinary movable furniture. Suitability depends on the building and arrangement.
What to do next
Ask the appropriate project professionals to evaluate supports, drainage, and maintenance access. Keep irrigation issues separate from rainwater entry until investigated. Document the approved arrangement so later relocation does not obstruct outlets or damage the roof surface.
Related Perkins guidance
Contact Perkins Roofing to discuss your roof and the appropriate next step.