Ontario Building Code Practice Exam

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Prepare for the Ontario Building Code Exam. Utilize multiple choice questions and detailed explanations. Ace your test with our comprehensive study materials!

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Which of the following materials is not permitted for use as insulation in a residential building?

Fiberglass
Cellulose
Polyurethane foam
Asbestos

The correct answer is: Asbestos

Asbestos is not permitted for use as insulation in a residential building because it has been linked to serious health risks such as lung cancer and mesothelioma. Fiberglass, cellulose, and polyurethane foam are commonly used materials for insulation in residential buildings and do not pose the same health hazards as asbestos.