TPO (Thermoplastic Olefin) roofing is a popular choice for flat or low-slope roofs thanks to its durability and energy efficiency. Ridge vents help provide ventilation along the peak of the roof, which prevents moisture buildup in the attic. However, both TPO roofs and ridge vents can develop leaks over time, primarily due to a few common issues. For TPO roofs, leaks often happen because of poorly sealed seams, punctures from foot traffic or debris, or degradation caused by UV exposure. Ridge vent leaks usually occur when the vent’s flashing or sealant deteriorates or when installation was incomplete, allowing water to seep underneath. Homeowners can do a simple visual check for damaged or loose materials around the ridge vent and inspect the TPO membrane for tears, blisters, or loose seams, but avoid walking on the roof if it’s slippery or delicate. Using binoculars from the ground can also help identify obvious trouble spots without risking injury.
If you spot signs of leaks such as water stains on the attic ceiling or damp insulation, it’s usually time to call a professional roofer experienced with TPO systems and ventilation components. When engaging a contractor, ask if they perform seam re-welding or patching with heat-welded materials rather than using adhesives or tapes, as heat welding ensures a more reliable, code-compliant seal and maintains your roof’s warranty. Another important question is how they will inspect and repair the ridge vent’s flashing and sealant to prevent recurring leaks. Remember, trying to fix leaks yourself without the right tools or knowledge can sometimes void your roof’s warranty or cause additional damage, so trusting a qualified roofer is often the safest, most cost-effective choice in the long run.