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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.

Homeowners insurance can be voided in several scenarios. That can include making too many claims in a short period of time, leaving a home vacant for an extended period of time, renting out a home or room illegally, using a home as a business illegally, and any kind of criminal activity connected to the home.

You should not clean roof shingles if the roof has damage like missing shingles or low spots where water may accumulate. You should focus on repairing the roof before any cleaning process occurs. If you notice roof damage as you’re climbing on the roof to clean it, stop immediately. Call a roofing pro to make repairs. Cleaning a roof that has damage could lead to pooling water or water damage to the roof decking. The roof cleaning process removes mold and mildew, making the roof look better. It is not going to fix physical damage, though.

Walking on the roof to clean gutters is unsafe and not recommended due to significant safety risks. It is especially dangerous on steep or slippery roofs, or if the roof is wet or covered in leaves, which increases the chance of a fall. In addition to personal injury, walking on the roof can damage shingles, potentially leading to water leaks. Instead of walking on the roof, use a sturdy ladder positioned on a stable surface to access the gutters. Be aware that using a ladder also carries risks, as it can be difficult to maintain balance while performing the work. You can also use ground-based cleaning tools. For safety reasons and to prevent damage to your roof, hiring a professional to clean your gutters is the best and safest option.