Concrete tile and ridge vent leaks often occur because of improper installation, aging materials, or damage from weather. Concrete tiles are heavy and require a secure underlayment and proper flashing to keep water from penetrating underneath. If the underlayment wears out or the ridge vent is not sealed well, water can seep in, especially during heavy rain or wind-driven storms. Ridge vents are designed to let hot air escape while keeping water out, but if nails or fasteners create small holes or if the vent becomes cracked or blocked, leaks can happen. Sometimes debris buildup around the ridge vent can trap moisture, causing deterioration over time.
To check for leaks, carefully inspect the ridge vent for any visible gaps, cracks, or loose tiles near the ridge line. Look inside the attic for signs of moisture or water stains around the roof peak after rain. You can safely perform a water test by gently spraying water on the ridge vent area and checking inside for leaks, but avoid climbing on the roof if you’re not experienced or if the roof is steep. If you notice damage or suspect hidden problems, it’s best to call a professional roofer who’s familiar with concrete tiles. When consulting a contractor, ask if they use corrosion-resistant fasteners and how they ensure proper sealing around ridge vents. Also, inquire whether their work includes a warranty that covers both materials and labor for ridge vent repairs under typical weather conditions.