Can I install recessed pot lights in a room with blown-in insulation in my attic?

Yes, but you MUST use IC-rated (Insulation Contact) and airtight pot light housings — using standard pot lights buried in insulation is a serious fire hazard and a code violation in New Brunswick.

Why this matters so much:

Standard (non-IC) recessed lights generate heat that must dissipate into the air space around them. Burying them in insulation traps that heat, potentially reaching ignition temperatures. The Canadian Electrical Code and NB Building Code require:

• IC-rated housings: These are designed to safely contact insulation. They have thermal protection that cuts power if the fixture overheats
• Airtight housings: Prevents warm moist air from rising through the fixture into the cold attic — this causes condensation, ice dams, and insulation damage. Critically important in NB's cold climate

The installation challenge:

Blown-in insulation (cellulose or fiberglass) in NB attics is typically 12-16 inches deep for adequate R-value. Installing pot lights means:

Cutting holes from below through the ceiling drywall

Clearing insulation away from each fixture location in the attic

Installing IC-rated airtight housings

Replacing insulation snugly around (and over) the IC-rated fixtures

Sealing all gaps with fire-rated caulk from the attic side

DIY vs professional for this specific job:

Hire a licensed electrician. Here's why:

• Working in NB attics with blown insulation is physically difficult — limited visibility, cramped spaces, potential for disturbing insulation coverage


• Electrical connections for new circuits require a TSANB permit and inspection


• Improperly installed pot lights in insulation are a leading cause of attic fires


• The electrician can verify your attic has no vermiculite (potential asbestos) common in 1960s-1970s NB homes before disturbing insulation

LED makes this easier: Modern LED pot lights generate far less heat than older incandescent cans. Many slim LED panels don't even penetrate into the attic — they mount flush to the ceiling surface, completely avoiding the insulation contact issue. Ask your electrician about these — they're often the best solution for insulated attics.

Costs in New Brunswick:

• IC-rated LED pot lights: $30-$80 per fixture


• Slim LED panels (surface mount): $40-$60 per fixture


• Installation: $150-$250 per light including wiring


• TSANB permit: $100-$200


• Typical 6-light installation: $1,200-$2,500 total

Bottom line: Always IC-rated and airtight, always LED, and strongly recommend professional installation for this particular job in NB attics.

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