Illinois Statutes Chapter 225. Professions,Occupations and Business Operations § 335/9. Licensure requirement

(1) It is unlawful for any person to engage in the business or act in the capacity of or hold himself, herself, or itself out in any manner as a roofing contractor without having been duly licensed under the provisions of this Act.

(2) No work involving the construction, reconstruction, alteration, maintenance or repair of any kind of roofing or waterproofing may be done except by a roofing contractor licensed under this Act.

(3) Sellers of roofing services may subcontract the provision of those roofing services only to roofing contractors licensed under this Act.

(4) All persons performing roofing services under this Act shall be licensed as roofing contractors, except for those persons who are deemed to be employees under Section 10 of the Employee Classification Act  1 of a licensed roofing contractor.