If you see signs of pooled water or low spots on the roof, this is a sign your roof has issues with the roof’s insulation compressing. This could also indicate you have an issue with the drainage on your roof.
Blistering or bubbling on your flat roof with a membrane can be a sign that moisture is trapped between the layers. When blistering is noticed early, it may prevent the need for a replacement.
Obvious holes or tears in the roof’s membrane must be addressed right away. This can include damaged areas around flashing or pitch pans as well.
If your commercial roof is nearing the end of its lifespan, you may consider a replacement which is more cost-effective in the long term.