Got questions about daylighting or ventilation?

The federal solar tax credit expired on December 31, 2025. After this date, homeowners should not assume eligibility for the credit. Tax credits are governed by federal law and may change at any time. For the most accurate and up-to-date information, homeowners should consult a qualified tax professional or review guidance directly from the IRS.

The Solatube 160 ISn and Solatube 290 ISn, which include an in-tube solar-powered NightLight, previously qualified for the federal income tax credit.

The federal solar tax credit expired on December 31, 2025, and eligibility is no longer available unless extended or modified by Congress. Homeowners should consult a qualified tax professional for the most current information regarding tax incentives.

The federal tax credit on Solatube 160 ISn and Solatube 290 ISn was 30%. This applies to both the purchase and installation of the daylighting system. This tax credit expired on December 31, 2025.

Unlike a tax deduction, which reduces your taxable income, a tax credit, on the other hand, is subtracted from the total amount of taxes you owe. The tax credit can also be added to a refund if one is due to you.

Decorative Fixtures are included, as they’re an essential part of the system. Add-ons, such as the Ventilation Kit, Daylight Dimmer, and Light Kit are excluded.

You will need your receipt for purchase and installation, a manufacturer’s certification statement, and IRS Form 5695. Please consult your tax advisor if you have additional questions.

The solar panel portion of all Solar Star Fans, both roof and interior mount models, qualify for the category “solar energy systems: photovoltaic systems” as defined below:

“Property that uses solar energy to generate electricity for the residence and must meet applicable fire and electrical code requirements.”

There are no specific technical requirements for photovoltaic systems. But all installed Solar Star Fans must meet applicable fire and electrical code requirements to qualify.

Homeowners are eligible for tax credits for qualified photovoltaic systems purchased and installed between Jan. 1, 2009, and Dec. 31, 2025.

For solar photovoltaic (PV) systems, the allowable tax credit is 30% of the qualified PV system expenditures, including both product and installation costs. For solar-powered fans, both the solar panel portion of the product and the labor costs associated with the installation can qualify for the tax credit.

There is no credit cap for residential photovoltaic systems placed into service between Dec. 31, 2008 – Dec. 31, 2025

Existing homes and new construction qualify. Both primary and secondary homes qualify. Rentals do not qualify.

An ENERGY STAR rating is not required for the photovoltaic system tax credit eligibility program.

A tax deduction is subtracted from income before total tax liability is computed. On the other hand, a tax credit is subtracted directly from the total tax liability.

To qualify, tax payers should retain information that includes:

• Receipt with the cost of the system listed
• Receipt with installation fees listed (applies only to Solar Star Fans)
• Date product was placed in service
• Manufacturer Certification Statement

Click here for more about IRS Form 5695, which is available on the IRS.gov website.

Many local utilities provide financial incentives for energy-efficient products. To find out if rebates or incentives are available in your area, visit the ENERGY STAR rebate finder. For additional information, please visit your state energy office website for specific state tax information, or view the database of State Incentives for Renewables and Efficiency.

Call us at  877‑652‑8823 for an instant price range, or schedule a free in-home consultation for a custom quote based on your specific needs.

Absolutely! Contractors and DIY homeowners can order products for curbside pickup—just give us a call.

They are often worth it for homeowners in the Carolinas dealing with a hot, stuffy attic, especially when the roof gets strong sun exposure and the attic ventilation system can support steady airflow. Because the fan is solar-powered, it runs without adding electric usage for operation, which is a practical advantage in long cooling seasons.

The best results come when the fan is sized correctly and the attic has enough intake ventilation. Carolina Skylights can tell you quickly whether your attic is a good candidate and what changes, if any, are needed for the fan to perform as intended.

A solar attic fan is installed on the roof and uses a built-in solar panel to power the fan motor. As the fan runs, it exhausts hot attic air to the outside. That outgoing air is replaced by fresh air entering through attic intake vents, most often soffit vents, which supports steady airflow through the attic during the hottest part of the day.

Some Solatube models add automatic controls. The ClimaSense Series uses temperature and humidity sensing to adjust ventilation based on attic conditions, which helps the fan run when it is most useful and reduces run time when conditions do not call for it.

Yes, solar-powered attic fans can work well when the attic ventilation system is balanced and the roof location gets consistent daylight. The fan’s performance depends on having enough intake ventilation to supply airflow and a roof placement that supports reliable solar power, since both directly affect how much air the fan can move.

Carolina Skylights confirms soffit intake, evaluates attic size and exhaust needs, and checks roof exposure before recommending a Solatube solar attic fan. That upfront review helps ensure the fan is sized and placed correctly, so it delivers meaningful heat and moisture removal in real-world conditions.

A helpful benchmark is warranty coverage and build quality, since the solar panel, motor, and housing are exposed to the elements. Carolina Skylights notes that Solatube solar-powered attic fans include durable, weather-resistant components and are backed by 10 years of coverage, which is a strong indicator of expected service life when installed correctly.

Real-world longevity still depends on installation details and ventilation balance. Correct flashing, proper placement, and clear intake paths help the fan move air efficiently without added strain, which is why Carolina Skylights evaluates attic intake and exhaust and installs the fan with the right roof flashing for long-term performance.

Common signs include an attic that feels extremely hot on sunny days, upstairs rooms that are consistently warmer than the main floor, and HVAC systems that run longer in the afternoon. Moisture-related clues can include musty odors, damp insulation, condensation on roof decking or fasteners, and staining that suggests trapped humidity.

Carolina Skylights can confirm whether these symptoms point to an attic ventilation problem, and whether a Solatube solar attic fan is the right fix or if intake venting improvements should come first.

Most solar-powered attic fans run when their solar panel is producing power, so airflow typically drops after sunset. They are built to do the heaviest work during peak sun hours, which is also when attic temperatures are usually highest.

That said, some Solatube solar attic fan options are designed to extend ventilation beyond daylight hours. The Solatube ClimaSense Series is made to provide continuous ventilation even after the sun sets, helping maintain more consistent evening airflow. Carolina Skylights will recommend the right model based on your roof’s sun exposure, your attic ventilation setup, and whether overnight ventilation is a priority for your home.

Sizing depends on attic square footage, roof design, and how much net free vent area you already have for intake and exhaust. A fan that is undersized may not move enough air, and a fan installed without adequate soffit intake cannot perform at its rated airflow because it is starved for replacement air.

Carolina Skylights evaluates your attic size, existing intake and exhaust ventilation, and roof exposure first, then recommends the right Solatube solar attic fan model and placement for reliable heat and moisture removal.

Yes, a solar attic fan can help reduce attic heat by exhausting hot air that builds up under the roof during the day. A cooler attic can reduce heat transfer into the living space, especially during peak afternoon sun, which can support more consistent indoor comfort.

Results depend on the full attic ventilation setup. Soffit intake ventilation, insulation levels, ductwork location, and air sealing all affect how much heat is trapped and how much the fan can remove. Carolina Skylights evaluates your attic first, then recommends a Solatube solar attic fan only when the attic size, ventilation balance, and roof exposure support meaningful heat reduction.

They work best when the attic has enough intake ventilation, and soffit vents are one of the most common intake sources. Intake vents supply the replacement air the fan needs to exhaust hot attic air efficiently, so limited intake can reduce results.

Carolina Skylights checks intake and exhaust balance before installation, then recommends the right setup so the fan can move air without fighting restricted airflow.

Yes, a solar attic fan can still run on cloudy days because solar panels can produce power from diffuse daylight, not only direct sun. Output is usually lower than it is on a clear day, so the fan may run at a reduced speed when the sky is heavily overcast or when the roof is shaded for part of the day.

For consistent performance in the Carolinas, the roof location matters. Carolina Skylights checks sun exposure, shading, and the attic layout before recommending placement. If your roof has limited sun, Carolina Skylights can also recommend Solatube options designed to keep ventilation steady beyond peak sun hours, including models in the ClimaSense Series that are built to run all day and continue into the evening.

Because solar attic fan installation often involves roof work, flashing, and ventilation calculations, DIY is risky. A common failure point is inadequate intake ventilation, which reduces performance and can create pressure issues.

Carolina Skylights looks at your attic ventilation as a system first, including intake, exhaust, and roof exposure, then matches the right Solatube attic fan setup to your attic and roof. Professional installation also ensures the correct flashing and mounting method for your roofing material, which helps prevent leaks and protects long-term performance.

The cost to install a solar attic fan depends on your roof and attic conditions, not just the fan itself. Projects often land in the high hundreds into the low thousands, with pricing influenced by roof pitch and material, roofline complexity, attic access, and whether any ventilation improvements are needed to support proper airflow.

The biggest cost drivers are the mounting and flashing approach, how the fan is sealed to the roof, and whether your attic has enough soffit intake ventilation to feed the airflow the fan is designed to move. Carolina Skylights can give you a reliable, home-specific estimate after a quick evaluation of roof sun exposure, existing intake and exhaust ventilation, and the best placement for your Solatube solar attic fan to perform as intended.

For many North and South Carolina homes, a tubular skylight is a practical fix for rooms that stay dark even on sunny days, like interior bathrooms, hallways, closets, laundry rooms, and kitchens. A Solatube Daylighting System is built to capture sunlight at the roof and deliver it through highly reflective tubing, so you get bright, usable daylight where a traditional window is not possible.

They also tend to be a low disruption upgrade, since many installations can often be completed in about two hours in the right conditions. That makes it realistic to add daylight without a major remodel.

The best tubular skylight depends on the room you want to brighten and how the tube will route through your attic. Solatube 160 systems are commonly used for smaller spaces like hallways, bathrooms, and closets, while Solatube 290 systems are often chosen for larger areas like kitchens, living rooms, and open spaces where you want a bigger daylight impact.

Carolina Skylights recommends the right Solatube tubular skylight based on ceiling height, attic conditions, roof type, and the tube path, including length and bends, along with the light level you want in the room. We can also include options like a daylight dimmer, a night lighting add-on, ventilation add-ons, or diffuser styles that fit the look of your space.

Tubular skylights can deliver bright, usable daylight, but the amount of light depends on the roof location and the tube route. Roof exposure, shading, tube length, and the number of bends all affect output. In general, a shorter, straighter tube run produces stronger light, and thoughtful placement can make a bigger difference than people expect.

Carolina Skylights sets expectations by evaluating roof exposure and attic conditions first, then recommending the best placement and tube path for consistent daylight. We also help choose diffuser placement so the light spreads evenly where you need it most in the room.

No. Tubular skylights can still deliver daylight on cloudy days because they capture both direct sun and ambient daylight from the sky. The room will usually be brightest when the roof dome has strong sun exposure, but you can still get useful natural light even when conditions are overcast.

That said, roof placement makes a noticeable difference. Heavy shade from trees, rooflines, or nearby structures can reduce output, especially during certain times of day. Carolina Skylights evaluates roof exposure and the tube route through your attic before installation, then recommends the placement and configuration that will provide the most consistent daylight for your space.

A tubular skylight uses sunlight, so it does not create light after dark on its own. If you want the same ceiling fixture to provide light at night, Carolina Skylights can install a lighting add-on so the space stays bright even after sunset.

Many homeowners choose this for interior bathrooms and hallways, where you want daylight during the day, but also need a light source at night in the same location.

Solatube Daylighting Systems are built as sealed roof-to-ceiling assemblies using durable components, and they come with up to 10 years of coverage on key daylighting parts such as the dome, flashing base, diffuser, reflective tubing, and seals.

In a real home, long-term performance depends heavily on correct flashing and a properly planned tube path. That is why Carolina Skylights follows Solatube installation requirements and evaluates your roof type, pitch, and attic layout to match the right flashing and placement for your home.

In many cases, yes. Solatube tubular skylights are designed to work with most common roof types, and the correct flashing is selected based on your roofing material and roof pitch so the roof penetration is sealed properly.

Carolina Skylights confirms your roof type, pitch, and attic conditions before installation, then recommends the best placement and tube route for strong daylight performance. That planning step helps the system deliver the results you expect once it is installed.

Yes, within limits. Carolina Skylights can use an optional adapter to create a short horizontal offset when needed, which can help route the tubing around common attic obstacles. The goal is still to keep the tube path as direct as possible, since extra bends and longer runs can reduce light output.

Carolina Skylights plans the roof location and tube route before installation, so the system clears obstacles while still delivering strong, even daylight in the room.

It is possible, but it is usually not recommended. Installing a tubular skylight means cutting the roof and ceiling, then getting the flashing and sealing details right, since small errors can lead to leaks later. The tube route also matters, extra bends or a poor roof location can reduce daylight.

Carolina Skylights installs Solatube tubular skylights every day, which helps ensure the correct flashing for your roof type and pitch and a tube layout that delivers the light level you expect.

Many Solatube tubular skylights installed by Carolina Skylights can be completed in about two hours under straightforward conditions, which keeps disruption to a minimum.

Installation time can vary based on attic access, tube length and routing, roof type, and any interior finishing details. Carolina Skylights will walk you through what to expect during your in-home evaluation so the timeline reflects your home, not a generic average.

The installation cost of a Solatube tubular skylight depends on the system size and how your roof and attic are laid out. The biggest drivers are roof type and pitch, attic access, and the tube route from the roof to the ceiling, including length and any turns needed to reach the room.

Pricing can also change based on what you want the finished setup to include, such as a daylight dimmer, a night lighting add-on, ventilation add-ons, or a specific diffuser style. Carolina Skylights provides a home-specific estimate after reviewing the best roof placement and the most efficient tube path, so you get a price tied to your house and your lighting goals.

The best placement is where the daylight will be most useful for how you use the room, not automatically the center of the ceiling. That often means placing a tubular skylight over task areas like a kitchen island, or in high-traffic spots like stairwells, hallways, and entryways where better visibility matters.

Roof placement matters too. A roof location with reliable sun exposure and a direct tube route typically delivers better light than an area shaded by trees, dormers, or roof angles. Carolina Skylights maps the ceiling location to the best roof position, then plans the tube path to balance daylight performance and finished appearance.

An integrated solar‑powered nightlight that gently illuminates your home after dark—no wiring needed.

Daylight charges its solar panel and batteries. When dusk arrives, built-in sensors automatically activate the LEDs, adding a soft, energy-efficient glow.

Yes- an optional adapter allows a 0–90° horizontal run for short distances.

• 160 DS: up to 20′ (6 m)
• 290 DS: up to 30′ (9 m)
• 330 & 750 DS: up to 50′ (15 m)

Solatube tubular skylights are engineered to minimize condensation issues through several key design features. The system includes a Dome Ring with a Moisture Control System and pre-installed weep holes, specifically intended to reduce condensation build-up within the unit. Additionally, for installations in cold climates or where the flashing is exposed to humid interior spaces, a Flashing Insulator is available to provide further vapor control. These features help ensure that Solatube Daylighting Systems are highly resistant to condensation when properly installed.

If you’re concerned about condensation due to unique conditions in your home, Carolina Skylights, your local Solatube Premier Dealer, can provide recommendations or additional accessories to address specific needs.

Yes. Domes, flashing, tubing, and diffusers are sealed to prevent dust and pests. No interior cleaning needed.

Options like Warming Effect Lenses or Daylight Dimmers can warm up or reduce the brightness of the light. 

Solatube domes block 98–100% of UVA, UVB, and UVC radiation. Tubes filter infrared too, reducing heat gain.

• Plant growth? Generally positive—visible light passes, IR mostly blocked.
• Vitamin D / skin impact? UVB is blocked, so it won’t contribute to vitamin D synthesis.

When comparing a Solatube tubular skylight to a Velux sun tunnel, the difference comes down to daylight performance and installation flexibility. Solatube’s patented Spectralight Infinity tubing reflects nearly all the daylight that enters, so even if the tube path in your attic isn’t perfectly straight or runs longer, you get brighter, more even natural light in your home. This level of light transfer is unique to Solatube and gives it a clear advantage in homes with complex or angled attic spaces.

The rooftop dome on a Solatube tubular skylight also captures and redirects sunlight more efficiently throughout the day, including mornings, afternoons, and in winter when the sun is low. With a range of flashings and diffuser options, plus add-ons like integrated nightlights, Solatube is built for real homes and real homeowner needs in the Carolinas. For the best daylight results, product design and installation quality matter as much as the brand, and Solatube is engineered for both.

A whole house fan can be worth it if you want a fast, practical way to pull in cooler outdoor air and flush warm, stale indoor air out through the attic, especially during spring and fall in the Carolinas when evenings cool down. Solatube whole house fans are designed to exchange air quickly, which can improve comfort and reduce how often you rely on air conditioning when outdoor conditions are favorable.

The key is using it at the right times. On nights when outdoor air stays warm or humidity is high, you may not use a whole house fan as often, and the payoff is smaller. Carolina Skylights helps homeowners across the Carolinas decide if a whole house fan makes sense by looking at your home layout, attic ventilation, and the conditions you are most likely to use it in.

The cost to install a Solatube whole house fan depends on the fan model your home needs and what your attic requires to move air properly. Carolina Skylights selects the right fan based on your home’s square footage and the airflow capacity needed, then confirms your attic has enough attic exhaust ventilation to release the air the fan pushes into the attic. If additional venting is needed for proper exhaust, that can change the scope of the project.

Installation conditions also affect price. The biggest factors are attic access, electrical requirements, where the intake grille can be placed, and how the ducting is routed for efficient airflow and low noise. Carolina Skylights provides a free, home-specific estimate after reviewing your attic layout, existing ventilation, and the best installation approach for your house.

A Solatube whole house fan pulls cool, fresh outside air into the living space through open windows, then pushes hot, stale indoor air into the attic and out through existing attic vents. This replaces indoor air rather than recirculating it, which is why many homeowners notice a fast change in comfort when conditions are right.

Carolina Skylights focuses on correct placement and venting so airflow moves through the home the way it should, instead of getting restricted in the attic.

Yes. A whole house fan needs open windows so it can pull in fresh outdoor air while it moves warm indoor air up into the attic and out through your home’s existing attic ventilation. A good starting point is to open a few windows in the areas where you want incoming air, then adjust interior doors to help direct airflow through the rooms you want to cool and refresh.

Carolina Skylights also checks that your attic has enough exhaust venting for the fan’s airflow. Proper attic ventilation gives that air a clear path out, which helps the whole house fan perform efficiently and keeps the system operating as intended.

A whole house fan uses electricity, but it typically costs less to run than central air conditioning for the same amount of time. Solatube whole house fans are designed for efficient operation, and energy use depends on the model and the speed you run, so smaller systems and lower speeds draw less power than larger systems and higher speeds.

Your operating cost depends on how long you run the fan and when you use it. In the Carolinas, many homeowners get the best results by running a whole house fan in the evening or early morning when outdoor air is cooler, then closing windows once the home feels comfortable. Carolina Skylights can recommend the right fan size and explain what that usage pattern looks like for your home.

Whole house fans are designed to move a large volume of air quickly, which makes them useful for fast whole-home ventilation. When outdoor air is cooler than indoor air, a whole house fan can help flush out warm, stale air, improve indoor air freshness, and clear everyday odors by pulling in outside air through open windows and exhausting indoor air through the attic. In the Carolinas, many homeowners use them in the evening or early morning to take advantage of cooler temperatures.

They can also help reduce how often you rely on air conditioning during mild weather, and many whole house fan systems are built for quiet operation when properly sized and installed. In cooler months, some homeowners run the fan briefly for air exchange, which can freshen indoor air without leaving multiple windows open for long periods. Carolina Skylights can recommend the right fan size and confirm your attic has the ventilation needed for the fan to perform as intended.

It usually works best when you run a whole house fan at the right times instead of continuously. Solatube whole house fans are designed to pull cool outside air in through open windows and push hot, stale indoor air up through the attic and out the vents, so the best results typically come in the evening or early morning when outdoor air is cooler.

In the Carolinas, running it nonstop can be less comfortable when outdoor air is warm or humid. Carolina Skylights can recommend a simple run schedule based on your home layout and attic venting, so you get the cooling and fresh-air benefits the system is built for.

Noise depends on fan design, fan speed, and installation details like ducting and mounting. Solatube positions the EPS whole house fan line around strong airflow with quiet operation, and proper installation plays a big role in how it sounds in the living space.

Carolina Skylights focuses on placement and installation details so the fan delivers airflow without unnecessary vibration or air noise, and so the grille location makes sense for how you use the home.