But slate is expensive-typically prices start at about $800 a square-and very heavy. Hundred-year-old slate, in fact, is often recycled for reinstallation, with the expectation it will last another century. Not all slate is the same-some comes from quarries in Vermont, some from Pennsylvania and other states-but the best of it will outlast the fasteners that hold it in place.
Slate.Slate is among the most durable of all roofing materials. All are expensive, very durable, and tend to be very heavy. Tile and Cement. The half cylinders of tile roofing are common on Spanish Colonial and Mission styles cement and some metal roofs imitate tile’s wavy effect. These roofs start at about $250 per square but often cost two or three times that. Lead and the copper/asphalt varieties are typically installed as shingles, but others are manufactured for seamed roofs consisting of vertical lengths of metal that are joined with solder. Metal.Aluminum, steel, copper, copper-and-asphalt, and lead are all durable-and expensive-roofing surfaces. They have a life expectancy in the 25-year range (like asphalt shingles) but cost an average of twice as much. Usually made of cedar, redwood, or southern pine, shingles are sawn or split. Wood.Wood was the main choice for centuries, and it’s still a good option, though in some areas fire codes forbid its use. Prices begin at about $50 a square, but depending upon the type of shingle chosen and the installation, can cost many times that. The standard type costs roughly half as much, but laminated shingles have an appealing textured appearance and last roughly half as long (typically 25 years or more, versus 15 years plus). Two basic configurations are sold: the standard single-thickness variety and thicker, laminated products. It’s made of a fiberglass medium that’s been impregnated with asphalt and then given a surface of sand-like granules. 
Asphalt.This is the most commonly used of all roof materials, probably because it’s the least expensive and requires a minimum of skill to install. Consider the following options, then talk with your designer and get estimates for the job. Materials like slate and tile are very heavy, so the structure of many homes is inadequate to carry the load. A flat roof or one with a low slope may demand a surface different from one with a steeper pitch. Not every roofing material can be used on every roof. A house with multiple chimneys, intersecting rooflines (the points of intersection are called valleys), turrets, skylights, or other elements will cost significantly more to roof. A gable roof with few or no breaks in its planes (like chimneys, vent pipes, or dormers) makes for a simple roofing job. 
The shape of the roof is another contributing factor. One is the condition of the existing roof if you are remodeling a house-if old materials must be stripped off, and if the supporting structure needs repair, that will all cost money. The price of the material is the starting point, but other factors also must be considered. Cost of a New RoofĪ number of considerations will affect the cost of a new roof. The roof of a typical two-story, 2,000-square-foot house with a gable roof will consist of less than 1,500 square feet of roofing area, or about fifteen squares. A square is their basic unit of measurement-one square is 100 square feet in area, the equivalent of a 10-foot by 10-foot square. Roofers don’t usually use the measure “square feet.” Instead, they talk in squares. Here’s what you need to know: Roofing Terminologyīefore we talk materials, let’s talk terminology. Product cost, material weight, and installation requirements should also influence your selection. Style is an important factor, but it’s not the only one. These include asphalt, wood, and composite shingles, as well as slate, concrete, and clay tiles. Whether you are building from scratch or choosing a new roof for your existing home, a wide range of materials are readily available and worthy of consideration.
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