The MR System for Metal Roofs is designed specifically with metal roofs in mind. It prevents leaks at the seams, where most leaks occur on metal roofs, and it is able to overcome metal design flaws. This product extends the life of your roof while helping you save money and energy with its highly reflective finish. The best thing about the MR System is that it provides long-term performance at a fraction of the cost of a new metal roof replacement. The MR System for Metal Roofs is a seamless roofing system.