Roofing and siding specialists have a variety of product options that can be installed in commercial and residential properties.  Those companies dedicated to environmental responsibility offer products that are made from recycled and salvaged materials, such as steel, metal, plastic, rubber, composites and wood.   Roof and siding insulation also helps to cut down on energy consumption.  Roofers and siders listed in this section are committed to offering environmentally friendly products and services.