Illinois Roofing Practice Exam

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Prepare for the Illinois Roofing Exam with comprehensive quizzes. Utilize flashcards and multiple-choice questions, each with detailed hints and explanations. Start your journey to becoming a certified roofing professional in Illinois today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What can result in SPF-based roofing systems are applied in misty or foggy conditions?

Increased UV resistance.
Increased adhesion to the substrate.
Carbon dioxide can cause blistering of the roof membrane.
Improved fire resistance.

The correct answer is: Carbon dioxide can cause blistering of the roof membrane.

SPF-based roofing systems, or spray polyurethane foam roofing, are sensitive to environmental conditions during installation. When these systems are applied in misty or foggy conditions, moisture can interfere with the curing process of the foam. This moisture can react chemically, leading to issues such as blistering within the roof membrane. When carbon dioxide is present in the atmosphere during application, it can exacerbate the potential for blistering, causing structural integrity issues in the roofing system over time. The other options do not align with the risks associated with applying SPF roofing systems in humid conditions. UV resistance, adhesion to the substrate, and fire resistance are qualities of SPF roofing primarily improving through proper application and curing in optimal conditions. Therefore, the potential for blistering due to moisture is the primary concern when working under misty or foggy conditions.