Building a roof over an existing patio costs $20 to $60 per square foot, depending on the type of cover and materials used. Basic options like fabric awnings or metal roofs offer minimal protection, while mid-range choices such as aluminum covers or wood pergolas with polycarbonate panels provide better durability and aesthetics.
For premium options, custom wooden structures with shingle roofing or insulated aluminum covers not only offer full protection from the elements but also enhance outdoor living spaces and may increase home value. Additional features like lighting or heating can further increase the overall cost.