Why may some types of sheet and spray foam insulation need protection?

Some types of sheet and spray foam insulation need protection primarily due to their flammability. Many insulation materials are made from organic compounds that can easily catch fire. In the event of a fire, these materials can contribute to the spread of flames and potentially increase the fire's intensity. To mitigate this risk, it is essential for certain types of insulation to be covered with a fire-resistant barrier, such as gypsum board or another approved material that can help slow the combustion process and reduce the risk of fire in a building.

This consideration of flammability is crucial for safety in both residential and commercial settings, as well as compliance with building codes that dictate fire safety measures. Ensuring that insulation is adequately protected not only enhances the safety of the structure but also helps in adhering to regulatory requirements designed to keep occupants safe.