Copper roofing drains have actually been around for over 30 years. Thunderbird Products is an excellent supplier of these drains pipes. Nevertheless the market criterion is cast iron or plastic drains. Cast iron corrosions, is heavy, and a pain to set up. Plastic is affordable, fractures, melts, and also fails over time. Copper drains are inexpensive, don’t rust, as well as are very simple to set up and maintain.