Light gauge steel structures are non-combustible, that's a code need for many types of structures. Considering the fact that steel loses its power in fire quite quickly, it must be protected against fire with fire rated sheeting. Make sure you ship us roll forming profile with technical specs, thickness https://martinluemv.activablog.com/33795912/the-best-side-of-light-steel-frame-houses-for-cold-climates