The shape of the pitch can change the cost per square foot as well. Choosing roof replacement options often depends on your locality and your preference. Roof pitch also affects the roofing materials you can use. For example, wood shake shingles can be used for steeper-pitched roofs but are unsuitable for flatter, low-pitched roofs. Long-lasting materials are usually more expensive to install because they require more labor from contractors. Specialized roofing materials such as clay or concrete...