If your roof is leaking and leaving stains, a Roofing Contractor can inspect and recommend repair or replacement

https://membranetypestpopvcepdm572.scriblorax.com/posts/tpo-roofing-installation-for-low-slope-systems

If your roof is leaking and leaving stains, a Roofing Contractor can inspect and recommend repair or replacement, including underlayment considerations for full work.