Cât timp va dura acoperișurile metalice?

This could very well be the last roof you will ever put on your home, barn, shed or shop with life expectancies that can easily exceed 30 years. Corrosion resistant substrates and long-life finishes ensure long-term performance, minimal maintenance and life cycle cost savings. This substrate has been protecting many of the world's monumental buildings for decades, and has been in use for over 100 ani .