In northern Illinois, the lifespan of roofing materials can vary significantly based on the type of material used and the region's climatic conditions. Here are standard estimates for various roofing types:

Asphalt Shingles: Generally last between 15 to 30 years, depending on the quality of the shingles and the level of maintenance performed.

Metal Roofs: Known for their durability, metal roofs can last anywhere from 40 to 70 years with minimal maintenance required.

Wood Shakes: Typically have a lifespan of 20 to 30 years; however, they are more vulnerable to issues such as rot and insect damage.