Commercial roofing is a building material used to protect and seal the top of commercial structures. It covers structural framing and prevents rain and other precipitation from entering the building. Commercial roofing generally has a relatively flat slope, as opposed to residential roofing, which is typically steeply sloped. There are a variety of materials used to create commercial roofing systems, and has its own benefits and drawbacks that should be considered.

Traditionally, many commercial roofs were constructed using shingles, which are overlapping sections of material laid in rows to help improve runoff. Shingles can be made from a number of materials, including wood, slate, clay, or asphalt. Asphalt shingles are covered with a bituminous coating and are one of the cheapest and most effective shingle options, though they require a great deal of maintenance, and don’t last as long as other materials.