Roofing contractors wear & normally need official education, however they need on-the-job experience to learn their trade. While each state has different licensing rules, a lot of require a roofer to have at least 2 years of experience before they can become certified. These experts likewise need liability insurance, to be bonded and to have an organization license. HomeAdvisor can assist you find the ideal roofing contractor for your job. While each state has various licensing rules, many require a roof specialist to have at least 2 years of experience before they can become licensed. These experts likewise require liability insurance coverage, to be bonded and to possess an organization license.