A sun roof in a house is the everyday name for a skylight, roof window, or sun tunnel: a glazed opening cut into the roof that brings daylight, and sometimes fresh air, straight down through the ceiling. People borrow the car word because the idea is the same, a pane of glass overhead. On a house you are really choosing among four products, each with its own price, install method, and leak risk. This guide translates the term, prices each option for 2026, and covers the one thing skylight sellers rarely put in writing: a sun roof is a hole in your roof, and holes in roofs are where roofs leak.
What “sun roof in a house” actually means
A sun roof in a house is not a formal product name. Roofers, manufacturers, and building codes call the glass-in-the-roof feature a skylight, a roof window, or a tubular daylighting device (a sun tunnel). If you searched “sunroof,” you are almost certainly picturing one of those three. The distinction matters because it changes what you buy, what it costs, and whether your roof pitch can even take one.
The confusion is worth clearing up before you call a contractor. Ask for a “sunroof” and a roofer may not know if you mean a fixed light panel, an opening window, or a small light tube. Naming the real product gets you an accurate quote and the right flashing kit for your roof type.
The four types of sun roof for a house
There are four real versions of a residential sun roof: the fixed skylight, the venting skylight or roof window, the sun tunnel, and the full glass roof. Each suits a different room, budget, and roof slope. The table below sets them side by side so you can match the product to what you actually want, whether that is light only, light plus air, or a design feature.
| Type | Opens for air? | Best for | Roof slope needed |
|---|---|---|---|
| Fixed skylight | No | Light only in hallways, stairwells, closets, living rooms | Pitched or low slope with a curb |
| Venting skylight / roof window | Yes | Kitchens, bathrooms, and rooms that trap heat or moisture | Pitched, roughly 15 to 85 degrees |
| Sun tunnel (tubular) | No (some vent kits exist) | Small or interior rooms with no direct roof access | Most slopes, flat kits available |
| Glass roof / walk-on unit | Varies | Extensions, flat-roof rooms, and design-led builds | Flat and low slope, engineered |
Fixed skylight
A fixed skylight is a sealed glass or acrylic unit that never opens. It delivers the most daylight per dollar and has the fewest moving parts to fail, which is why it is the default choice when you only want light. VELUX, Fakro, and Sun-Tek all make fixed models in deck-mounted (low profile, for pitched roofs) and curb-mounted (raised, for low slope) versions.
Venting skylight and roof window
A venting skylight opens to let hot air and moisture out, which makes it the right pick over a bathroom or kitchen. A roof window is a larger venting unit set lower in the roof so you can reach through it, and in some layouts it doubles as an emergency escape. Both need a pitched roof, generally in the 15 to 85 degree range, and cost more than a fixed unit because of the operating hardware.
Sun tunnel (tubular skylight)
A sun tunnel is a small dome on the roof connected to the ceiling by a reflective tube that channels daylight into rooms with no direct roof access. Solatube and VELUX sell tubes from about 10 to 14 inches across. It is the cheapest and least invasive sun roof because it does not require framing out a large opening, and it suits closets, hallways, and interior bathrooms.
Glass roof and walk-on units
A glass roof is a larger glazed panel, sometimes walk-on rated, used on flat-roof extensions and design-led rooms. These are engineered to the opening, cost the most, and belong on flat or low-slope structures where a standard pitched skylight will not sit correctly. Expect a custom quote rather than an off-the-shelf price.
What a sun roof costs in 2026
A sun roof in a house typically costs between about $500 and $5,500 installed in 2026, depending on the type and whether you are replacing an existing unit or cutting a brand-new opening. Cutting a new hole is the expensive part, because it adds framing, drywall, and interior finishing to the price. The ranges below are installed figures and can shift with roof type, ceiling height, and local labor rates.
| Sun roof type | Typical installed cost (2026) | Note |
|---|---|---|
| Sun tunnel (tubular) | $500 to $1,200 | Least invasive, no large opening |
| Fixed skylight, replacement | $900 to $1,700 | Reusing an existing opening |
| Venting skylight, replacement | $1,200 to $2,200 | Operating hardware adds cost |
| Roof window | $1,500 to $3,500 | Larger unit, more complex install |
| New fixed skylight (new opening) | $3,000 to $5,500 | Framing and finishing a fresh hole |
For a full breakdown by unit size, glazing, and brand, see our guide on how much skylights cost, and for the price gap between fixed, vented, and tubular units, the skylight installation cost guide. VELUX pricing and model tiers are covered separately in our VELUX skylights review.
Skylight vs roof window vs sun tunnel: which to choose
Choose by what you want the sun roof to do, not by the label. If you want light only, a fixed skylight or a sun tunnel is the cheapest, lowest-maintenance answer. If the room traps heat or steam, a venting skylight or roof window earns the extra cost by clearing moisture. If there is no direct roof above the room, a sun tunnel is often the only option that works.
- Light only, large room: fixed skylight. Most daylight per dollar, nothing to break.
- Light plus ventilation: venting skylight or roof window over a kitchen or bathroom.
- Small or interior room, no roof access: sun tunnel through the attic to the ceiling.
- Flat-roof room or design feature: curb-mounted skylight or an engineered glass roof.
The part sellers skip: a sun roof is a roof penetration
Every sun roof is a hole cut in your roof, and roof penetrations are one of the most common sources of leaks. A skylight sits at the intersection of glass, flashing, and roofing, so a bad flashing job or a failed seal shows up as a water stain on the ceiling months later. This is the honest tradeoff no product page leads with, and it is the reason the install matters more than the unit.
Two things control whether a sun roof stays dry. The first is the flashing kit: a proper step-flashing and head-flashing assembly, matched to the roof covering, not a bead of caulk. The second is the installer. VELUX, for example, offers a 10-year no-leak installation warranty only when a certified installer does the work. If a sun roof does start leaking, our guide on diagnosing and fixing a skylight leak walks through the seven common sources before you tear anything out.
Age is the other factor. Skylight seals and flashing generally last around 10 to 20 years, often less than the roof around them. If your roof is due for replacement, the time to reflash or replace a sun roof is during that job, while the deck is open and a roofer is already on site.
Can your roof take a sun roof?
Most pitched asphalt, metal, and tile roofs can take a sun roof, but the type you can install depends on the slope. Roof windows and standard deck-mounted skylights need a pitched roof, roughly 15 to 85 degrees. Flat and very low-slope roofs need a curb-mounted skylight or an engineered glass unit that raises the glass above the deck so water drains around it rather than pooling on it.
Slope, rafter spacing, and attic layout all affect the job. A tunnel can thread between rafters with little framing, while a large skylight or roof window may require cutting and headering off a rafter, which is structural work. A roofer or a skylight installer can confirm what your specific roof and framing allow before you commit to a size.
Artificial “sun roofs” for rooms that cannot have one
If a room has no roof above it or you cannot cut the ceiling, an artificial sun roof is the fallback. Products like SUNROOOF use optics and tuned LEDs to mimic the color and angle of daylight through what looks like a skylight, with no roof opening and no leak risk. A sun tunnel is the middle ground: real daylight, small footprint, and a far simpler install than a full skylight.
These options trade real sky for zero roof risk. They will not replace the view or the ventilation of a true roof window, but for a windowless bathroom, closet, or basement-adjacent room, they bring usable daylight or its convincing imitation without touching the weatherproof layer of your roof.
Frequently asked questions
What is a sun roof in a house called?
In a house, a sun roof is called a skylight, a roof window, or a sun tunnel (also known as a tubular skylight). A skylight is a fixed or venting glass unit in the roof, a roof window is a larger venting unit you can reach through, and a sun tunnel channels daylight through a reflective tube. The car-style word “sunroof” is not a formal building term.
How much does it cost to put a sunroof in a house?
Putting a sun roof in a house typically costs about $500 to $5,500 installed in 2026. A sun tunnel runs roughly $500 to $1,200, a replacement fixed skylight $900 to $1,700, and a roof window $1,500 to $3,500. Cutting a brand-new opening for a fixed skylight often costs $3,000 to $5,500 because it adds framing and interior finishing.
What is the difference between a skylight and a roof window?
A skylight is usually fixed or opens only slightly and is set higher in the roof, while a roof window is larger, opens fully for ventilation, and sits low enough to reach through or use as an escape. Roof windows cost more and need a pitched roof, generally 15 to 85 degrees. Skylights are simpler to install and can go on lower slopes with a curb.
Can you put a sunroof in any house?
Most houses can take some form of sun roof, but the type depends on the roof slope and framing. Pitched roofs handle skylights and roof windows directly. Flat or low-slope roofs need a curb-mounted skylight or an engineered glass unit. Rooms with no roof directly above can often use a sun tunnel routed through the attic, and interior rooms can use an artificial daylight unit.
Do skylights and sun roofs leak?
A sun roof can leak because it is a penetration in the roof, and penetrations are a leading leak source. Most leaks trace to failed flashing, a worn seal, or a poor install rather than the glass itself. A correct flashing kit and a certified installer greatly reduce the risk, and skylight seals typically last 10 to 20 years before they may need reflashing or replacement.
What is a sun tunnel?
A sun tunnel, or tubular skylight, is a small roof dome connected to the ceiling by a highly reflective tube that carries daylight into rooms without direct roof access. Tubes usually measure 10 to 14 inches across and suit closets, hallways, and interior bathrooms. It is the least expensive and least invasive sun roof because it does not require framing a large opening.
Reviewed by The Roofing Brief Team. Last reviewed July 2026.