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Signs that you need a new shed roof include curling or buckling shingles, saggy or droopy spots, or plant life growing on your roof. Likewise, if you notice wet spots inside your shed after it rains or snows, you most likely have a leak problem that won’t go away on its own. It’s a good idea to replace your shed roof if it’s showing signs of wear before your entire shed becomes damaged.

Tile roofs, including clay, concrete, and slate, are considered low-maintenance materials that require fewer repairs and less care than many other roofing options.

• Clay tiles require minimal maintenance. They stand up well to the elements and UV radiation, repel water, and do not easily stain, discolor, or fade in direct sunlight. Clay tiles do not need sealing. Maintenance is typically only required to replace cracked tiles, which can be caused by foot traffic, extreme weather, or fallen tree limbs.

• Concrete tiles are also low-maintenance but require more upkeep than clay. They need to be sealed every few years to maintain water resistance, and their color tends to fade more quickly than clay.

Aside from these material-specific needs, general maintenance for tile roofs includes annual inspections, routine gutter cleaning, and addressing repairs as they arise. A well-maintained tile roof can provide 50 to 100 years or more of protection for your home.

You can start inspecting your roof from the ground by looking for unevenness in the roof lines and slopes. Keep an eye out for broken, damaged, or missing shingles, and look for visible gaps where the roofing material meets exterior walls or roof penetrations, like your chimney. If you’re comfortable getting up on your roof and using the necessary safety equipment, you can get a closer look at these areas to identify signs of damage. If you notice any potential issues, it’s best to call in a professional to confirm your findings.

While you can technically install new roof sheathing over an old layer, it is generally not recommended for several reasons. Installing new sheathing over old can trap moisture, which may lead to future problems, especially in humid climates. It also adds significant weight to the roof structure and prevents you from inspecting the original sheathing for rot, mold, or other damage.

However, in some cases, if the old sheathing has been thoroughly inspected and is in excellent condition with no signs of rotting, warping, or damage, a roofer may install new sheathing over it to add strength and stability. Despite this, the more common and recommended practice is to remove the old roof sheathing entirely before installing a new layer, as removing it is not a difficult task.