Yes, the Timberline warranty included is the limited lifetime warranty and gives the homeowner 100% replacement coverage for the first ten years. After that, the warranty prorates and only covers a portion of the materials based on how much life was already used up.
The system plus warranty costs on average an extra 300 dollars but gives you that 100% coverage for the 50-year period. It’s also transferable between homeowners for 20 years which makes it a nice selling feature down the road.