No other metal roofing manufacturer warrantees their stone coating 100% for the lifetime of the original owner.  We do!  Simply put: Our warranty, covering all defects in manufacturing and workmanship is the best in the industry, and covers your roof 100% for the lifetime of the original purchaser.  This means that if you purchase a KBS metal roof, and live in your home for 60 years, you will be covered 100% for that entire duration.  If you install a KBS metal roof, and sell your home after a period of time (lets say 10 years after installation), your warranty transfers on to the new owner and covers that owner for a period of 50 years from the date of installation.  
Another fact that sets us apart from our competitors is this: If you sell your home during the 50-year warranty period, the new owner automatically receives the warranty benefits without having to sign up.  Our competitors require the new owner to fill out a form, usually within 30 days of purchase of the home, or the warranty is void.  We know that new homeowners have more important things to think about when moving into a new home, and we don't penalize them for failing to register.  Registration passes automatically from owner to owner!
If you're considering a different metal roofing, please pay close attention to the warranty.  We dare you to compare!