Residential steel framing members are cost-effective, lightweight, easy-to-handle, and manufactured in conditions that allow strict quality control. When designed properly, the result is solid, non-combustible, and durable. Because steel can be pre-cut to desired lengths and is a stable material, you don't need to sort out defective pieces and can erect a frame faster. Also, steel scrap has value and can be recycled.
No, only if you want it to be. In fact, because of steel's properties, your architect can design your home with larger open spaces. With steel framing, walls will remain straight and true, preventing call-backs due to nail pops and shrinkage cracks. Finishes can be the same as you are accustomed to using.
No, galvanized steel does not rust.
The only way you can tell this is by looking which kind of houses are built with steel over time. Traditional wooden header and ridges sag. They are subject to moisture changes that cause warping, splitting and rotting. If you've ever attempted to remodel or renovate an older wood framed or traditional concrete home, you know what happens over the years.
No. Steel framing is recommended for chemically sensitive and environmentally conscious homeowners who seek good indoor air quality. Steel frames do not need to be treated for mold or termites and are free of resin adhesives and chemicals normally present in other construction materials.