New roof warranties are called “Limited Lifetime” as a standard, but this ultimately means the protection period is limited to 25 or 30 years and is prorated over that timeframe based on age. Carolina Bays is a Shingle Master for Certainteed Roofing products and offers a 50 year NON-prorated warranty when using Certainteed products. Additionally this warranty includes high wind protection and full material and labor replacement in the event of a product failure.