IL Roofing Contractor study guide
IL Roofing Contractor · Work through your exam, one topic at a time.
The Illinois Roofing Contractor license is a state-issued credential administered by the Illinois Department of Financial and Professional Regulation (IDFPR). It is intended for individuals and business entities that contract with the public to install, repair, or replace roofing systems in Illinois, and for the qualifying person who must demonstrate technical and regulatory competence on behalf of the business. The IL Roofing Contractor study guide has 5 sections and about 2,014 words.
01Licensing, Business Operations, and Illinois Regulatory Compliance
Illinois licenses roofing contractors under the Roofing Industry Licensing Act (225 ILCS 335), administered by the Illinois Department of Financial and Professional Regulation (IDFPR). Three points trip candidates up constantly.
394 words, about 2 min02Estimating, Plans, Specifications, and Contracting
Every quantity in a roofing estimate starts from squares , where one square equals 100 square feet of finished roof surface . On any sloped roof the plan area must be converted with a pitch multiplier: multiplier = √(1 + slope²) , with slope expressed as rise over 12.
393 words, about 2 min03Roofing Materials, Components, and Systems
Asphalt shingles dominate Illinois residential work. Three-tab shingles have a single layer and a uniform tab pattern; laminated (architectural) shingles bond two or more layers for thickness and random shadow lines.
369 words, about 2 min04Installation Practices, Steep-Slope and Low-Slope Application
Installation runs bottom-up: drip edge, ice-dam protection, underlayment, valley treatment, starter course, field shingles, flashing, then cap and ventilation. Two placement rules generate exam items.
416 words, about 2 min05Jobsite Safety, Fall Protection, and Code Requirements
Federal OSHA 1926.501 sets a 6-foot trigger for construction work: at or above six feet, employees need fall protection. On steep roofs, meaning those steeper than 4:12 , the acceptable systems are guardrail systems with toeboards, safety net systems, or personal fall arrest systems - warning lines and safety monitors, which are permitted on low-slope roofs, are not an option on a steep roof.
442 words, about 2 min