Concrete tile and granule loss typically happens due to weathering, heavy impact, or poor installation. Over time, harsh sun, rain, wind, and freeze-thaw cycles can wear down the surface of concrete tiles, causing the protective granules to loosen and fall off. Sometimes, granule loss is accelerated by roofing debris hitting the tiles or even foot traffic during maintenance. This loss is concerning because it exposes the underlying concrete, making the tiles more vulnerable to cracking and water absorption. A quick way to check for granule loss at home is by looking at your gutters or downspouts for fine particulate deposits, or by noticing dull, powdery spots on the tiles themselves. It’s also helpful to examine the roof after a storm to spot any chipped or cracked tiles that might have shed granules.
If you spot granule loss or damaged tiles, calling a professional roofer is wise, especially since concrete tile replacement involves matching colors and ensuring proper fastening to avoid leaks. Simple DIY checks like visual inspection and gently sweeping away debris are safe, but avoid walking on the tiles to prevent further damage. When consulting a contractor, ask if the tiles they recommend meet current building codes and if their installation methods preserve the manufacturer's warranty. Also, inquire about their plan for addressing underlying problems, such as inadequate underlayment or ventilation, which might be contributing to tile deterioration. This approach can help maintain your roof’s lifetime and protect your investment.