Roofing warranties vary depending on the roofing company and materials installed. At Alon Roofing, all new roofs come with a five year workmanship warranty. Depending on the material used on your roof, the equipment warranty would range from five years to a lifetime warranty. These equipment warranties could be become voided due to a few factors: any alterations done to the roof, lack of necessary maintenance performed, and "acts of God" such as lightning or a tree falling on your roof.