How far must thermal insulation be kept from a recessed fixture exclosure?

The correct answer indicates that thermal insulation must be kept 3 inches away from a recessed fixture enclosure. This requirement is established to prevent overheating of light fixtures, especially in residential and commercial construction. Recessed fixtures generate heat, and if insulation is in close proximity, it can create a fire hazard due to the heat buildup.

Maintaining a distance of 3 inches helps to ensure adequate airflow around the fixture, minimizing heat retention and allowing the fixture to operate safely within its design parameters. This is a crucial safety standard in the building codes, aimed at reducing the risk of fire and ensuring the longevity of the fixtures used in electrical installations.

The specificity of the 3-inch requirement reflects best practices in construction safety and is important knowledge for any contractor working in Virginia or similar jurisdictions, emphasizing the significance of compliance with established safety regulations.