Roofing materials in Illinois
Last updated: September 24, 2026
For homeowners in Illinois, especially within the expansive Chicago metropolitan area, the selection of roofing materials is critically influenced by the state's continental climate, featuring hot, humid summers and frigid, snow-laden winters. This climatic variability, combined with the prevalent architectural styles of the region, dictates a need for robust, durable roofing solutions that can withstand extreme temperature swings and significant precipitation.
Choose your city
The predominant roofing materials found across Illinois include asphalt shingles, metal roofing, and, in some historic districts, slate or tile. Asphalt shingles, particularly architectural-grade options with enhanced wind and impact resistance, are a common and cost-effective choice. However, the intense freeze-thaw cycles experienced in Illinois can accelerate the degradation of lower-quality shingles, leading to granule loss and potential leaks. Standing seam metal roofing, fabricated from materials like Galvalume or aluminum, offers superior performance against heavy snow loads and the potential for hail damage, common during severe Midwestern storms. For premium applications, slate and tile provide exceptional longevity and aesthetic appeal but require specialized installation and structural considerations.
Illinois's climate presents a unique set of challenges for roofing materials. The humid summers can promote the growth of algae and moss if proper ventilation and material choices are not made, while the harsh winters with heavy snowfall and ice accumulation place significant stress on roof structures. Proper underlayment and ice-and-water shield installation are therefore critical, especially in areas prone to ice dam formation. Permitting and licensing in Illinois are generally handled at the local municipal level, with Chicago having its own stringent building codes and inspection processes. It is imperative to engage with licensed roofing contractors who are well-versed in these specific local regulations and possess the technical expertise to install materials that will endure the state's climatic extremes.
Common questions
What are the most resilient roofing materials for Illinois's climate?
For Illinois's climate, standing seam metal roofing (Galvalume or aluminum) offers excellent resilience against heavy snow and potential hail. High-quality architectural asphalt shingles with good wind and impact resistance are also a robust choice. Slate and tile provide exceptional longevity but require specialized installation and structural support.
How do Illinois's extreme temperatures affect roofing material choices?
Illinois experiences significant temperature swings, including harsh winters and hot, humid summers. These extremes can cause expansion and contraction in roofing materials, leading to cracking and degradation. Choosing materials with good thermal stability and resistance to freeze-thaw cycles is crucial for longevity in the state.
What are the key considerations for roofing materials in the Chicago metropolitan area?
In the Chicago metropolitan area, prioritize roofing materials that can withstand heavy snow loads, severe freeze-thaw cycles, and potential hail. Proper underlayment and ice dam prevention are critical. Compliance with Chicago's specific building codes and engaging licensed contractors familiar with local regulations are essential.
Are asphalt shingles a suitable roofing material for homes in Illinois?
Architectural asphalt shingles are a common and suitable roofing material for homes in Illinois, offering a cost-effective solution. However, selecting high-quality shingles with enhanced wind and impact resistance is vital to withstand the state's severe weather. Proper installation with robust underlayment is also critical.
What are the advantages of metal roofing materials in Illinois?
Metal roofing materials, such as standing seam Galvalume or aluminum, offer significant advantages in Illinois by effectively shedding heavy snow and ice, thereby reducing the risk of ice dams and structural stress. They also provide excellent resistance to wind uplift and hail, contributing to long-term durability and performance.
How does Illinois's humidity impact roofing materials?
Illinois's humidity, particularly during the summer, can promote the growth of algae and moss on roofing materials if not properly managed. Choosing materials with inherent resistance to biological growth or ensuring adequate attic ventilation can help mitigate these issues and maintain the aesthetic and functional integrity of the roof.
Useful reference: NOAA storm data — hail and wind event history.