Metal Roof Repair is expensive and inefficient. Wouldn’t it be great if, instead of fixing or replacing your metal roof, you could install a new, long-lasting roof system right over your current roof without an expensive tear-off? Good news. You can with the Duro-Shield metal roof covering, retrofit roofing system from Duro-Last. The Duro-Shield roofing system is the cost-effective, long-term way to protect your building against rain, temperature changes, interior drips, ice build-up, as well as rust and corrosion-guaranteed.