Synthetic slate roofing is a popular and durable alternative to natural slate, but like any roofing material, it can develop leaks around ridge vents. Ridge vent leaks typically happen because of improper installation, aging sealants, or damage to the vent flashing. Since synthetic slate panels are designed to interlock seamlessly, any gap or misalignment near the ridge vent can allow water to sneak underneath. Moisture can also enter if the underlayment beneath the synthetic slate has been compromised, or if debris clogs the vent, causing water to back up. To check for leaks safely at home, inspect the ridge vent for visible cracks, loose fasteners, or gaps in the flashing. Look inside your attic after a rainfall to spot signs of water intrusion such as damp spots, mold, or a musty smell.
If minor issues like loose screws or brittle sealant are found, you can try resealing or tightening fasteners carefully, but take care because the ridge is sensitive and working on roofs can be risky. However, if the flashing looks damaged or synthetic tiles are cracked or poorly aligned, it’s best to call a professional roofer experienced with synthetic slate. When choosing a contractor, ask if they have specific experience repairing ridge vents on synthetic slate roofs and whether they offer a warranty on their work. Also, inquire about how they handle flashing repairs and if they use compatible sealants that won't void your roof’s warranty. This ensures you get lasting repairs without risking costly damage down the line.