Reroofing is the process of adding a new layer of shingles or roofing material over an existing roof to restore its durability and appearance. It is a cost-effective alternative to a complete roof replacement, provided the underlying structure is in good condition. Reroofing helps extend the lifespan of a roof, improve energy efficiency, and enhance the property’s curb appeal. However, it is only possible for roofs with a single layer of shingles, as multiple layers can add excessive weight and compromise structural integrity.