In most cases, it’s possible to install a new roof over an existing one. However, it’s important to have your existing roof inspected by a professional roofer to ensure that it’s structurally sound and can support the weight of the new roof. Installing a new roof over an existing one can save time and money, but it can also reduce the lifespan of the new roof and create additional problems if the underlying roof is not properly repaired. For roofs that require extra work for repair, homeowners may need to factor in additional costs for labor before the roof can be replaced. Despite higher upfront expenses, replacing a roof can potentially save homeowners money by increasing its lifespan and improving energy efficiency over time. All New Jersey residents need to prepare ahead by taking into account roof replacement costs when budgeting for home improvements.