Signs of a failing flat roof in Stoughton include: ponding water that doesn’t drain within 48 hours, cracks or splits in the membrane visible from the roof surface, blistering or bubbling of the membrane, staining on interior ceilings below the flat section, and a membrane older than 15–20 years. Master Roofers provides free flat roof inspections throughout Stoughton — call (603) 624-7663 to schedule.