Standing seam metal roofs are known for their durability and sleek appearance, but even they can develop leaks around ridge vents, where the roof’s highest point is ventilated. Leaks often happen because of improper installation, such as gaps between the ridge vent and the metal panels, missing or damaged sealant, or fasteners that aren’t correctly tightened or are corroded. Another cause is the natural expansion and contraction of metal with temperature changes, which can loosen connections over time. Moisture can then sneak in through these weak points, leading to water stains, mold, or even structural damage inside your attic. To diagnose a leak, start by carefully inspecting the ridge vent area, looking for cracked or missing sealant and checking for rust around fasteners. Using a hose to simulate rainfall can help identify where water might be entering, but be sure to do this safely without risking injury or pushing water further inside your home.
For a safe DIY check, you can visually examine the seams and ridge vent for any obvious gaps, loose screws, or damaged flashing. Avoid walking directly on the panels since metal roofs can be slippery and prone to denting, and never work alone at height without proper safety equipment. If you find any small sealant cracks or loose fasteners, applying a high-quality roofing sealant designed for metal can temporarily manage minor leaks until a professional can assess the situation. Calling a roofer is important when the damage seems beyond simple fixes or if you’re unsure about the installation quality. When you do reach out, ask your contractor, “How do you ensure the ridge vent is properly sealed with a standing seam roof to accommodate metal expansion?” and “What warranties cover ridge vent leaks specifically, and how is leak repair handled under those terms?” Understanding these points helps protect your investment and ensures your roof’s ventilation system functions without compromising its waterproof integrity.