The majority of residential roofs in Southern Ontario are pitched roofs, but there are also many flat residential roofs, and some that are a mixture of both pitched and flat roofing surfaces. Pitched roofs can be covered in a variety of materials: asphalt shingles, cedar shingles, torch on products, sheet metal and metal tiles. All these materials come in many styles and colours to perfectly match and accentuate a property and meet the specific needs of the roof design. Modern pitched residential roofing systems use a variety of synthetic underlays specially designed for residential applications. The majority of flat residential roofs in Southern Ontario are rubberized, however tar and gravel is another popular method.