Can lights, also known as recessed lighting fixtures, are common in homes but require careful insulation practices to avoid fire hazards and maintain energy efficiency. Insulation directly covering can lights can cause overheating and pose significant safety risks, especially for non-insulation contact (non-IC-rated) fixtures.

1. Fire Safety

• Non-IC-rated can lights can overheat when covered with insulation, potentially igniting nearby materials.

2. Energy Efficiency

• Proper insulation placement prevents air leaks and improves energy performance, especially in the attic.

3. Code Compliance

• Building codes specify how insulation should be installed around can lights to ensure safety and performance.

1. IC-Rated Fixtures

• Designed for direct insulation contact. These fixtures are thermally protected and safe to cover with insulation.

2. Non-IC-Rated Fixtures

• Require at least a 3-inch clearance from insulation to dissipate heat safely.

1. Identify the Type of Fixture

• Remove the trim or check the label inside the housing to determine if the fixture is IC-rated or non-IC-rated.

2. Turn Off Power to the Fixture

• Switch off the power at the circuit breaker before working around the can lights to ensure safety.

3. Inspect Existing Insulation

• Look for insulation directly covering the can lights or signs of overheating, such as discoloration or charring.

4. Create Clearance for Non-IC-Rated Fixtures

• Remove insulation from around the fixture to maintain a minimum 3-inch clearance.

• Install a Barrier: Use a fire-resistant material to create a protective shield around the fixture:

• Metal Housing: Use sheet metal or aluminum to build a box around the fixture.

• Pre-Made Covers: Purchase fire-resistant can light covers designed to provide clearance while allowing ventilation.

5. Secure Insulation

• Reposition the insulation to maintain the required clearance, ensuring it does not sag or shift over time.

• Use insulation supports or clips to hold it in place.

6. Upgrade to IC-Rated Fixtures (Optional but Recommended)

• Replace non-IC-rated can lights with IC-rated fixtures that allow direct contact with insulation, enhancing safety and energy efficiency.

7. Seal Air Leaks Around the Fixture

• Use high-temperature caulk or spray foam to seal gaps around the housing or barrier to prevent conditioned air from escaping into the attic.

• Fire-resistant can light covers or sheet metal

• Screwdriver or drill

• High-temperature caulk or spray foam

• Insulation supports or clips

• Protective gear (gloves, goggles, dust mask)

1. Inspect Regularly

• Periodically check the condition of can lights and surrounding insulation to ensure safety and compliance.

2. Upgrade Old Fixtures

• Replace older non-IC-rated fixtures with modern, energy-efficient IC-rated or LED fixtures.

3. Use Airtight IC Fixtures

• Install IC-rated airtight can lights to reduce air leaks and improve energy performance.

4. Install LED Retrofit Kits

• Consider replacing traditional bulbs with LED retrofit kits, which produce less heat and are safer for use near insulation.

• Electrical Upgrades: For fixture replacements or upgrades, consult a licensed electrician to ensure proper installation.

• Code Compliance: A contractor can ensure your insulation and lighting setup meets local building codes.

• Large-Scale Retrofits: For multiple fixtures or complex installations, hire a professional for safe and efficient results.

• Enhanced Safety: Reduces the risk of fire caused by overheating.

• Energy Efficiency: Minimizes air leaks and improves thermal insulation.

• Code Compliance: Meets safety and building standards for your home.

• Improved Performance: Ensures your lighting and insulation work together effectively.

By addressing insulation around can lights, you enhance the safety, efficiency, and compliance of your home. Regular maintenance and appropriate upgrades ensure long-term performance and peace of mind.