Concrete tile roofing relies on specific nail patterns and fastener schedules to ensure proper hold and wind resistance. Typically, each tile is secured with two nails positioned through designated nailing clips or holes near the top edge of the tile. This pattern prevents tiles from sliding or lifting during high winds or heavy rain. Fasteners should be corrosion-resistant, often zinc-coated or stainless steel nails about 1.5 to 2 inches long. Over or under-nailing can lead to shifting tiles or damage. This proper placement helps maintain the integrity and longevity of the roof while keeping it secure under various weather conditions.
A simple DIY check involves lifting a few randomly selected tiles to look under for nail placement and condition. Ensure nails are driven straight and not missed or rusting. Loose or missing nails might suggest improper fastening, which requires attention. If you notice cracked tiles or nails only holding one edge, it’s safer to call a professional roofer. When consulting a contractor, ask them, “How do you ensure nails are placed to meet the manufacturer’s warranty guidelines?” and “What type and size of fasteners do you use for my concrete tile roof?” These questions help confirm they follow industry standards and protect your investment without voiding warranties.