If you are doing a modified bitumen roof, you need to have assurance it is done right. We install premium products like GAF and Johns Manville so you can feel good about this investment for your roof. All of our modified bitumen installers are factory certified to ensure installations are done exactly according to manufacturer guidelines. Get a quote today and learn more about Roof Monkeys modified bitumen installations and products. We never chase storms. Dallas is our home. We service the entire DFW metroplex area.