Permit Application is in Supporting Documents below.
If you are contracting the work out the roofing contractor must have a valid Illinois Roofing License.
(225 ILCS 335/5) (from Ch. 111, par. 7505)
(a) Each State licensed roofing contractor shall affix the roofing contractor license number and the licensee's name, as it appears on the license, to all contracts and bids. In addition, the official issuing building permits shall affix the roofing contractor license number to each application for a building permit and on each building permit issued and recorded.
(a-3) A municipality or a county that requires a building permit may not issue a building permit to a roofing contractor unless that contractor has provided sufficient proof of current licensure as a roofing contractor by the State. Holders of an unlimited roofing license may be issued permits for residential, commercial, and industrial roofing projects. Holders of a limited roofing license are restricted to permits for work on residential properties consisting of 8 units or less.
(a-5) A person who knowingly, in the course of applying for a building permit with a unit of local government, provides the roofing license number or name of a roofing contractor whom that person does not intend to have perform the work on the roofing portion of the project commits identity theft under paragraph (8) of subsection (a) of Section 16-30 of the Criminal Code of 2012.
Illinois Department of Financial and Professional Regulations License Lookup.