What should be done with rigid foam insulation to comply with safety regulations?

Rigid foam insulation must be covered with a fire-resistant layer to comply with safety regulations because the material is flammable and can pose a fire hazard if left exposed. Building codes often require that certain insulation materials, particularly those with a high R-value like rigid foam, be protected to minimize the risk of ignition and to prevent the spread of flames. This protective layer can be made from materials such as drywall or another type of fire-rated barrier.

By ensuring that rigid foam insulation is adequately covered, homeowners and building professionals can enhance the safety of the structure while maintaining energy efficiency. This practice safeguards occupants by providing a barrier that reduces the chances of fire and improves overall building performance in terms of fire protection.