Can you put recessed lighting in a cathedral ceiling?

Quick Answer

Yes, it is possible to install recessed lighting in a cathedral ceiling. The key considerations when doing this are choosing the right type of recessed lighting that is rated for cathedral ceiling use, planning proper layout and spacing, allowing for insulation clearance, providing adequate ventilation, and hiring a professional electrician to do the installation safely. With careful planning and proper installation, recessed lights can be an attractive and effective lighting option for cathedral ceilings.

What is Cathedral Ceiling?

A cathedral ceiling is a type of ceiling that has a high vertical pitch or vault, similar to ceilings found in cathedrals. Cathedral ceilings run from the top of exterior walls all the way up to the roof ridge of a house or building, creating a sense of spaciousness and grandeur.

The key characteristics of cathedral ceilings include:

– High vertical pitch, often 12 feet or higher from floor to ceiling peak

– Extends from exterior wall to roof ridge with no horizontal ceiling breaks

– Exposed rafters and beams often visible from below

– Ceiling follows the slope of the roof, typically with a 30-60 degree pitch

Cathedral ceilings are common in great rooms, living rooms, master bedrooms and other areas where an open, expansive feeling is desired. They allow more light into a space and create dramatic tall interior volumes. However, the angled contours of a cathedral ceiling can present some challenges when incorporating lighting fixtures like recessed lights.

Challenges of Putting Recessed Lights in Cathedral Ceilings

There are several potential issues to keep in mind when installing recessed lighting in a cathedral ceiling:

Angled Surface: The sloped pitch of a cathedral ceiling means recessed light housings have to be mounted on an angle. Standard recessed lights are designed to be installed flush on a horizontal ceiling surface.

Insulation Clearance: Most cathedral ceilings have insulation between the rafters for energy efficiency. Recessed lights give off heat and need clearance from combustible insulation materials.

Ventilation: Heat buildup is a concern for recessed lights, and cathedral ceilings provide less ambient airflow due to their shape. Proper ventilation is important.

Wiring and Access: Running electrical wires through rafters and accessing fixtures for replacement and maintenance can be more difficult on a cathedral ceiling.

Finding Proper Fixtures: Not all recessed lights can be mounted on an angled surface or properly ventilated – special cathedral ceiling rated fixtures are needed.

Aesthetics: The exposed sloped underside of a cathedral ceiling calls for a more thoughtful placement and layout of recessed lighting.

Choosing the Right Recessed Lights

When selecting recessed lighting for a cathedral ceiling, look for products designed specifically to work in this type of placement:

IC Rated (Insulation Contact) – These fixtures are rated for direct contact with insulation material. IC rated lights have protections from heat buildup.

AT Rated (Air Tight) – Air tight fixtures prevent conditioned air from escaping through light housings. This is important for energy efficiency.

Slope Ceiling Compatible – These lights are made to be installed on angled surfaces typical of cathedral ceilings.

Adjustable Trim and Bulb – Allow changing beam direction and light source placement, helpful on sloped ceilings.

Proper Ventilation – Housings should have adequate ventilation pathways for heat dissipation from bulbs.

Lower Wattage – Using lower wattage bulbs like LEDs reduces heat output and ventilation requirements.

Type IC Recessed Housing – Type IC is the technical rating to look for, indicating insulation contact approved housing.

Always check manufacturer specifications to ensure a recessed fixture is approved for ceiling angles and insulation contact relevant to your project.

Layout Planning Guidelines

Proper layout planning is crucial when installing recessed lighting in a cathedral ceiling for both aesthetics and good illumination:

– Space fixtures 2-3 feet apart and no more than 6 feet for even light distribution.

– Position lights to provide both ambient lighting and task lighting as needed.

– Add fixtures around the perimeter to accent architectural details.

– Use recessed lighting to highlight specific areas like artwork niches or architectural features.

– Include lighting controls like dimmers to adjust mood and accommodate different functions.

– Consider a lighting designer for larger or more complex cathedral ceiling spaces.

– Use a mix of narrow, medium, and wide beam angles for variety.

– Follow lighting industry standard guidelines for recommended lumens per square foot based on ceiling height and space functions.

Taking some time to plan the layout will ensure the cathedral ceiling recessed lighting provides attractive, useful illumination that takes advantage of the dramatic architecture.

Insulation Clearance Requirements

Properly installing recessed lighting in cathedral ceilings also means accounting for insulation clearance requirements. Insulation must be kept away from light housings containing hot bulbs and electrical components that could potentially ignite the flammable insulation material if contact is made. There are two main clearance options:

IC Rated Fixtures

– Use insulation contact (IC) rated recessed lights that are designed for direct contact with insulation.

– Follow specified clearances in product instructions (usually zero clearance).

– May require special insulating sleeves around housings.

Non-IC Rated Fixtures

– Require 3″ clearance from insulation to sidewalls, top, bottom for most standard housings.

– Clearance may be less (1″) if lower wattage bulbs under 75W are used.

– Can install a recessed light box (far side of rafters) to isolate housing from insulation.

– Must maintain ventilation pathways around fixture through the insulation material.

Checking the housing specs and following insulation contact vs. non-contact clearance requirements is very important for fire safety. An electrician can ensure proper installation.

Providing Adequate Ventilation

Recessed light fixtures give off heat through the bulb and trim kit which can build up, especially in enclosed cathedral ceilings. Proper ventilation is critical for keeping recessed lights from overheating. Tips for ventilation include:

– Selecting recessed lights designed for low clearance or insulation contact which have better ventilation pathways.

– Using IC and AT rated housings which are rated for insulation contact and air-tight contact.

– Choosing lower wattage bulbs (LED, CFL) that produce less heat.

– Following manufacturer instructions for ceiling slope limits and clearance from insulation.

– Allowing for sufficient ambient airflow by spacing fixtures apart.

– Providing vents or soffits at the top portion of the ceiling to allow rising hot air to escape.

– Installing a vapor barrier on the warm ceiling side to prevent moisture issues.

– Inspecting fixtures to ensure ventilation openings are not blocked by insulation or dust buildup.

Proper recessed lighting ventilation will keep the lights running cooler, prevent overheating issues, and reduce fire risks.

Hiring a Professional electrician

Due to the complexities of working on angled cathedral ceilings and managing insulation clearance, ventilation, wiring access, and more – it is highly recommended to hire a professional electrician experienced in installing recessed lighting in these types of ceilings.

Benefits of hiring an electrician include:

– Experience identifying potential issues and making proper product selections.

– Knowledge of building codes and best practices for layout and clearance.

– Tools and ability to safely run wiring through ceilings and make connections.

– Access to equipment like lifts or scaffolding to reach cathedral ceilings.

– Training in safe practices like locking out power before working.

– Availability to return if any service needs arise in the fixtures down the line.

– Delivers a licensed, code-compliant lighting installation (important for insurance).

Do not attempt electrical work yourself unless you have training. The installation costs of professional recessed lighting will be well worth it for the benefits gained in visual appeal, light quality, safety, and peace of mind.

Costs of Installing Recessed Lights in a Cathedral Ceiling

The costs of adding recessed lighting in a cathedral ceiling include:

Recessed lighting fixtures – $50 – $150 per unit depending on type, size, features

Wiring and conduit – $2 – $4 per linear foot to run wiring through attic and conduit

Electrician installation – $100 – $150 per hour (about 5-10 hours for a full project)

Circuit breaker and wiring upgrades – $200 – $400 if electrical panel needs upgrades

Lifts/scaffolding rental – $100 – $200 per day if needed to access ceiling safely

Permits – $50 – $150 for required building permits

For a 25′ x 25′ great room with 12 recessed lights installed, total costs could range from $2,000 – $4,000. The number of lights, ceiling accessibility, fixture choices, and complexity of electrical work all impact the final price. Get multiple quotes from electricians before deciding.

Wiring and Running Conduit

One key step in the installation process is wiring up the recessed light fixtures and getting the necessary power cables through the cathedral ceiling cavity and structure:

– Typically wiring is run through attic space above the ceiling installation area.

– Plastic flexible conduit is commonly used to contain and protect wiring going to each fixture.

– Conduit runs either directly on top of ceiling joists or is strapped along the angled bottom cord of the roof rafters.

– Junction boxes allow access to make connections between fixture wires and main ceiling wiring.

– Insulation has to be removed along conduit runs and access boxes to allow installation and prevent contact.

– Proper support, stapling, and securing of conduit and wires is necessary for longevity and safety.

An electrician has the tools, knowledge, and experience to effectively run wiring, conduit, and make necessary connections to power recessed lighting installations on cathedral ceilings.

Important Safety and Code Considerations

It is vital to follow proper safety practices and building codes when installing recessed lighting in cathedral ceilings:

– Use fixtures rated and approved for angled ceiling and insulation contact use.

– Follow all clearance requirements around light housings.

– Ensure adequate ventilation is provided between fixtures.

– Use IC-rated wiring and junction boxes.

– Have wiring, conduit, and connections completed by licensed electrician.

– Secure required building permits and pass inspections.

– Lock out power at main panel before doing any work.

– Follow National Electric Code guidelines for recessed lighting.

– Adhere to all local building codes and regulations.

– Use signs and barricades if lifts or scaffolding is needed during work.

– Test fixtures thoroughly once installation is complete.

Adhering to these best practices ensures a code-compliant lighting installation that provides attractive, functional illumination for years to come. Don’t cut corners when it comes to safety.

Choosing Light Bulbs and Trims

Once the recessed housings are installed properly, the right light bulbs and trims need to be selected:

Bulbs

– LED for efficiency and low heat output

– Correct wattage and beam angle for space

– Color temperature for desired light tone

Trims

– Baffle or lens type (adjust beam spread)

– Trim finish/color to match décor

– Slope ceiling adapter if needed

– Gimbals or adjusters to direct light

Match bulbs and trims to create the perfect cathedral ceiling lighting effect. Installation is also simpler when using lower wattage LED bulbs that meet ventilation requirements. Work with a lighting designer if needed to accessorize the recessed lights properly.

Inspection and Troubleshooting

After installation, the lighting should be thoroughly tested and inspected. Check for:

– Fixtures are secure and flush to ceiling

– No insulation contact with housings

– even light distribution in space

– Any flickering or non-working bulbs

– Noise from transformers or ballasts

– Proper functionality of controls

– No signs of overheating

Regularly inspect the recessed lights over time and replace any burned out bulbs immediately to prevent damage. Ventilation pathways and insulation clearance should also be re-checked seasonally. Any concerning electrical signs should be addressed by an electrician right away. Taking care of the lighting system will maximize longevity.

Conclusion

Installing recessed lighting in a cathedral ceiling brings beautiful, functional illumination to these dramatic architectural spaces. By choosing the proper slope-rated fixtures, planning a thoughtful layout, allowing for insulation clearance, ensuring adequate ventilation, and hiring a professional electrician, recessed lights can be integrated into cathedral ceilings safely and effectively. Follow all codes and safety practices in the process. Putting recessed lighting in cathedral ceilings does present challenges compared to standard horizontal ceilings, but the results are well worth the effort and create a stunning aesthetic when done properly.