A roof inspection is a way of determining the level of wear and tear on a roof, how much life it has left in it, and if there is a need for repair currently or soon in the future. Roof inspections involve looking for signs that indicate the wear on shingles and other roofing materials. A roof inspector does not need to remove any part of your roof. They are trained to correctly assess the lifespan of the roof visually.
A roof inspection also involves looking at your chimney and the flashing that surrounds it to assess the level of wear, examining gutters, downspouts, and anything else that attaches to the roof.