Clay tile roofs are prized for their durability and classic appearance, but they are not immune to common failure modes that homeowners should watch for. One frequent issue is cracking or breakage, typically caused by impact from falling branches, foot traffic, or extreme weather conditions such as hail or freeze-thaw cycles. Over time, tiles may also loosen or slip out of place due to aging mortar or improper installation. Another concern is the buildup of moss or algae, which can retain moisture and lead to tile deterioration or water infiltration beneath the tiles. While clay tiles themselves are quite long-lasting, the underlayment — the waterproof layer underneath the tiles — can degrade over time, resulting in leaks that might not be immediately obvious if the visible tiles appear intact.
Homeowners can safely check their clay tile roof by walking around the perimeter with binoculars to look for broken, cracked, or missing tiles. Inspecting after a storm for new damage is also wise. It’s best to avoid climbing onto the roof unless you are experienced, as clay tiles can be slippery and fragile. If you notice any signs of damage, or if your roof is over 20 years old and you haven't had a professional inspection recently, it’s a good idea to call a qualified roofing contractor. When talking to a roofer, ask if they inspect the condition of the underlayment and whether they offer tile replacement or full roof restoration services. You might also want to inquire about their experience working with clay tiles specifically, since proper handling and installation techniques are crucial to maintaining the roof’s longevity and warranty.