With their ability to brighten a room and create a sense of openness, skylights can dramatically improve any living space in your home. Beyond their aesthetic appeal, they offer practical benefits, such as reducing the need for artificial lighting, potentially lowering energy costs, and even improving mood and well-being through increased daylight exposure.
Despite their many benefits, there is one question that often lingers in the minds of many homeowners: Can you install a skylight if you have an attic?
If you want to know the answer to this question, let’s get into this blog post so you can make the right decision for your home.
Answering The Main Question: Can You Install A Skylight If You Have An Attic
Yes, if there is enough space, then installing a skylight in a home with an attic is possible, but it takes careful planning. First, the attic space must be checked for obstructions like HVAC units or ductwork, which may need to be moved.
Since the skylight needs to connect to the ceiling below, a shaft or well must be created through the attic. Proper insulation and weatherproofing are also essential to prevent leaks and maintain energy efficiency. But before starting anything, consulting a professional is recommended to ensure the skylight is placed correctly and meets both functional and aesthetic needs.
Also Read: How Much Does It Cost To Install A Skylight
Key Factors to Consider Before Installing A Skylight If You Have An Attic
Before installing a skylight, you need to check a few things. Let’s break them down:
1. Check for Attic Obstructions
Before installing skylights, it’s important to inspect the attic for obstacles like HVAC units, ductwork, bathroom fans, plumbing vents, electrical wiring, and gas lines. Some of these can be relocated, but others may require adjusting the skylight’s position. If repositioning isn’t possible, alternative placement options may be needed.
2. Evaluate Roof Structure and Slope
The type and slope of the roof play a key role in skylight installation. Stick-framed roofs are usually easier to modify, while truss-framed roofs or steeply pitched ones can present challenges. A professional evaluation ensures the skylight can be installed without affecting the roof’s strength.
3. Choose the Right Placement and Orientation
Where a skylight is placed affects the amount of natural light and heat it brings in. North-facing skylights provide steady, cool light, while south-facing ones allow more warmth but may overheat in summer. East-facing skylights brighten the mornings, while west-facing ones add light in the afternoon. Nearby buildings or trees can also impact sunlight exposure.
4. Plan the Installation Process
For homes with flat ceilings, installing skylights through the attic requires creating a light shaft to channel sunlight into the room. This involves framing and finishing the shaft to blend with the ceiling. Professional installation ensures a seamless look and proper support.
5. Prevent Moisture Issues and Leaks
A watertight seal is crucial to avoid leaks. Flashing and sealing materials help protect against moisture, reducing the risk of water damage. Routine maintenance can also extend the lifespan of the skylight and keep it functioning well.
6. Maintain Insulation and Ventilation
Adding a skylight in the attic can affect insulation and airflow. Proper insulation around the skylight prevents heat loss, while adequate ventilation helps control moisture buildup. Balancing both is essential for maintaining energy efficiency and preventing potential structural issues.
7. Ensure Structural Support
The attic must be able to support the weight of the skylight and any added features like ventilation. A professional assessment can determine if the framing can handle the load without compromising safety or stability. Fitting a skylight properly ensures durability and optimal performance.
Best Skylight Options for Attic Spaces
Different skylights work better for different attic layouts. Let’s go over your options:
1. Fixed Skylights
Bringing in a steady stream of natural light, fixed skylights are perfect for attics where ventilation isn’t needed. Since they don’t open, they are highly energy-efficient and require little maintenance. Many models feature low-E glass or double glazing to minimize heat gain, making them a cost-effective way to brighten a space and create a more inviting atmosphere. When installing a skylight, placement is key to maximizing light while maintaining energy efficiency.
- Fills homes with daylight, making them feel more open.
- More affordable than operable skylights.
- No moving parts reduce upkeep.
2. Tubular Skylights
Offering a compact and efficient lighting solution, tubular skylights work well where traditional skylights aren’t an option. These skylights use a reflective tube to channel sunlight into the living areas below, delivering bright illumination without requiring significant structural modifications. Their small size makes them ideal for tight or awkward spaces, making them an excellent choice when putting a skylight in a roof with limited space.
- Perfect for small or hard-to-reach attic areas.
- Requires minimal roof modifications.
- Generally more affordable than full skylights.
3. Custom Skylights
Creating a unique and tailored lighting solution, custom skylights are designed to fit specific attic layouts and architectural styles. These skylights allow homeowners to choose the size, shape, and style that best complements their attic space. While they often require professional skylight installation, they provide a distinctive and aesthetically pleasing result. Whether you’re installing a skylight for design or functionality, custom options offer flexibility in creating the perfect fit.
- Designed to suit any attic space.
- Available in various shapes and dimensions.
- Ensures a precise and secure fit.
4. Curb-Mounted Skylights
Providing a practical and reliable option, curb-mounted skylights feature a raised curb around the opening, making them a great fit for attic spaces. Their design includes a sturdy frame with insulated glass and a flashing system for weather protection, ensuring long-term durability. This type is ideal when fitting a skylight in an older structure or when installing skylights in an attic that requires extra insulation.
- Typically less expensive than other skylight types.
- Insulated glass and flashing enhance durability.
- Works well in various attic configurations.
Also Read: Best Skylight Brands of 2025 (& Our Top Picks)
How To Install A Skylight
Installing a skylight is a step-by-step process. Let’s break it down:
1. Plan and Choose the Skylight Location: Pick a spot that maximizes natural light while keeping the roof structure intact.
2. Mark the Skylight Placement: Transfer exact measurements from the ceiling to the roof for proper alignment.
3. Prepare the Ceiling and Attic: Cut through drywall, remove insulation, and clear any electrical wiring in the way.
4. Frame the Opening: Build a strong frame using header joists and a mounting curb to support the skylight.
5. Cut the Roof Opening: Remove roofing materials and cut an opening in the roof deck to fit the skylight.
6. Secure the Skylight: Attach it firmly to the curb or frame to prevent movement or leaks.
7. Install Flashing and Insulation: Apply an ice and water shield, flashing, and insulation to keep the area leak-proof and energy efficient.
8. Replace Roofing Materials: Reinstall shingles around the skylight and secure flashing for a watertight seal.
9. Finish the Interior: Replace drywall, add insulation, and blend the ceiling with the existing design.
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Brighten up your attic with OConnor Contracting’s expert skylight installation services! We take care of everything from structural assessments to seamless installation of skylights. Our team offers the best solutions that improve structural integrity and energy efficiency. Bring in natural light, increase your home’s value, and transform your living space with us. Contact us today at (716) 600-7663!
FAQ’s
A: Installing a skylight in an attic may require changes to the roof’s structure. If the roof has trusses, large skylights might not be an option without modifications, as trusses aren’t designed for major changes. A structural check is important to see if the roof can handle the skylight’s weight. Sometimes, extra support like reinforced beams may be needed. Also, obstacles like HVAC units or ductwork might have to be moved to make space for the skylight.
A: Yes, you can install a skylight in an attic with a low or sloped roof. On sloped roofs, traditional skylights work well. For low-slope or flat roofs, skylights with raised curbs or added flashing may be needed to prevent water leaks. This can be done with deck-mounted skylights or a raised platform. Also, checking structural needs and moving attic obstacles may be required.
A: To choose the right skylight, consider the room size and lighting. Measure the floor area (length × width) and size the skylight accordingly: 5% of the area for bright rooms, 15% for darker ones. Make sure it fits the roof structure and avoids too much heat or glare. Consulting a professional can help you find the best fit.
