Allied StormShield: Engineered Class 4 Impact-Resistant Roofing Systems Built for Illinois Storms
Allied StormShield is a three-tier roofing system engineered specifically for Illinois hail, wind, and roof-age underwriting pressures. Every tier centers on UL 2218 Class 4 impact-resistant shingles, manufacturer-specified high-wind nailing, and full code compliance with the International Residential Code chapters governing roof assemblies (IRC R905), attic ventilation (R806), and roof sheathing (R503). The tiers differ…