What Is Metal Roof? If you're considering a brand-new roof for your home, it might be worth thinking outside the asphalt. Metal roofing is rising in popularity, with increased demand in the property market and year after year industry growth. Today's metal roofing systems provide streamlined looks and increased energy efficiency, with a variety of choices available so you can fit the style of your house's exterior. So, whether you're constructing a new home from scratch or updating your existing roof, metal roof might just be the method to go.