In Ottawa, roofs face long, cold winters with heavy snow, frequent freezing rain and ice storms, plus spring/summer storms that bring high winds, heavier rainfall and occasional hail—conditions that increase leak, ice-dam and wind-uplift risk. Metal roofing can shed snow, resist rot and stand up to wind uplift when properly specified; large hail can dent some panels, so impact-resistant gauges and coatings matter. Performance depends on roofing system design (profile, underlayment, fastenings), installation quality (fastener pattern, flashings) and material durability (gauge, finish). Homeowners prioritise weather resilience to reduce leak and repair risk, protect structure and lower lifetime and insurance costs. Interlock Metal Roofing systems are engineered for durability, hail protection and wind resistance when specified and installed correctly. Ottawa’s climate is becoming warmer, wetter and more variable, so choosing a resilient system is increasingly important.