Every residential VELUX skylight we install — with the real specs, sizes, and glass technology you need to choose the right one.
Pick the Right Skylight in 30 Seconds
Seven models, one decision. Here's how they stack up at a glance.
| Model | Family | Operation | Rain Sensor | Best For |
|---|---|---|---|---|
VSS Solar Powered "Fresh Air" | Venting | Solar-powered motor | Bathrooms & kitchens (humidity exhaust) | |
VCS Curb-Mount Solar "Fresh Air" | Venting | Solar-powered motor | Replacing a failing curb-mounted skylight | |
VSE Electric "Fresh Air" | Venting | Hardwired 24V motor | New construction | |
VS Manual "Fresh Air" | Venting | Manual (hand or control rod) | — | Lower-pitch ceilings within easy reach |
FS Deck-Mount Fixed | Fixed | Fixed (does not open) | — | Stairwells and hallways |
FCM Curb-Mount Fixed | Fixed | Fixed (does not open) | — | Replacing existing curb-mounted skylights |
TGR / TMR SUN TUNNEL™ Tubular | Tubular | 10" / 14" | — | Small bathrooms & half baths |
Every Model, Explained Honestly
The real differences — not marketing fluff. We install all of them, so we'll tell you which one we'd pick for your specific room.
Solar Powered "Fresh Air"
VELUX VSS Deck-Mounted Solar Powered Fresh Air Skylight
No wiring. No electrician. The most popular skylight we install.
A factory-installed solar panel charges a discreet battery that powers the motor and controls — so it opens, closes, and even self-closes during a rainstorm without ever touching your home's electrical system. Comes pre-paired with a touchscreen remote.
- Solar panel + battery (no electrician required)
- Built-in rain sensor closes the skylight automatically
- Touchscreen remote control included
- Insect screen included
- Clean, Quiet & Safe™ laminated glass standard
- VELUX ACTIVE smart-home compatible
- Operation
- Solar-powered motor
- Glazing
- Laminated LoĒ³-366 + argon
- U-Factor
- 0.45
- SHGC
- 0.25
- Frame
- Deck-mounted, low-profile
- Pre-installed flashing
- EDL / EDW available
- • Bathrooms & kitchens (humidity exhaust)
- • Vaulted living rooms
- • Stairwells where wiring is hard to reach
- • Re-roof retrofits over existing shingles
Curb-Mount Solar "Fresh Air"
VELUX VCS Curb-Mounted Solar Powered Fresh Air Skylight
Drop-in replacement for an existing curb-mounted skylight.
Same solar-powered "Fresh Air" technology as the VSS, but built to sit on a site-built curb. The fastest, cleanest way to upgrade an old leaky curb-mounted skylight without rebuilding the curb itself.
- Designed to fit existing curbs
- Solar-powered — no electrical work
- Built-in rain sensor
- Standard sizes 2222 through 4646
- Operation
- Solar-powered motor
- Glazing
- Laminated LoĒ³-366 + argon
- Mount
- Curb-mounted (site-built curb)
- Sizes
- 2222, 2230, 2234, 2246, 3030, 3046, 4646
- • Replacing a failing curb-mounted skylight
- • Commercial low-slope buildings
- • Homes where the original curb is solid
Electric "Fresh Air"
VELUX VSE Deck-Mounted Electric Fresh Air Skylight
Hardwired venting for new builds and full remodels.
A 24-volt motor wired into your home electrical system. Smoothest, fastest opening of any VELUX venting skylight. Pairs with the VELUX ACTIVE gateway for HomeKit and automation routines.
- Hardwired 24V motor — fastest open/close cycle
- Built-in rain sensor
- Wall keypad + remote included
- Quietest operation in the venting line
- VELUX ACTIVE / Apple HomeKit compatible
- Operation
- Hardwired 24V motor
- Glazing
- Laminated LoĒ³-366 + argon
- Frame
- Deck-mounted
- Wiring
- Requires licensed electrician
- • New construction
- • Full remodels with open ceilings
- • Smart-home enthusiasts
Manual "Fresh Air"
VELUX VS Deck-Mounted Manual Fresh Air Skylight
The most affordable way to add ventilation.
Operated by hand or with an extension control rod for out-of-reach installations. No motor, no electricity, no rain sensor — but a real opening skylight at the lowest price point in the lineup.
- Hand-cranked or rod-operated
- No electrical work needed
- Insect screen included
- Clean, Quiet & Safe™ laminated glass
- Lowest cost venting option
- Operation
- Manual (hand or control rod)
- Glazing
- Laminated LoĒ³-366 + argon
- Frame
- Deck-mounted
- Rain sensor
- Not included
- • Lower-pitch ceilings within easy reach
- • Budget-conscious projects
- • Secondary skylight in a multi-skylight install
Deck-Mount Fixed
VELUX FS Deck-Mounted Fixed Skylight
Pure light. No moving parts. Lowest profile on the roof.
A non-opening skylight that sits flush to the roof deck for the cleanest exterior look. Pre-attached deck seal and engineered EDL/EDW flashing kit make it the most weather-tight fixed unit on the market.
- Lowest-profile fixed skylight available
- Pre-attached gasketed deck seal
- Engineered step-flashing kit (EDL/EDW)
- Clean, Quiet & Safe™ laminated glass
- No moving parts = longest service life
- Operation
- Fixed (does not open)
- Glazing
- Laminated LoĒ³-366 + argon
- Mount
- Deck-mounted, flush to roof
- Pre-attached seal
- Yes
- • Stairwells and hallways
- • Walk-in closets
- • New construction & full re-roofing
- • Anywhere you only need light, not airflow
Curb-Mount Fixed
VELUX FCM Curb-Mounted Fixed Skylight
For replacement on an existing site-built curb.
Sits on top of a site-built wooden curb instead of the deck itself. The standard choice for replacing an old curb-mounted skylight where rebuilding the curb would be invasive.
- Drops onto existing or new wooden curbs
- Standard sizes 2222 through 4646
- Laminated LoĒ³ glass standard
- Best replacement match for older skylights
- Operation
- Fixed (does not open)
- Glazing
- Laminated LoĒ³-366 + argon
- Mount
- Curb-mounted (site-built curb)
- Sizes
- 2222, 2230, 2234, 2246, 3030, 3046, 4646
- • Replacing existing curb-mounted skylights
- • Low-slope and flat roofs
- • Commercial buildings
SUN TUNNEL™ Tubular
VELUX TGR (Rigid) / TMR (Flexible) SUN TUNNEL Skylights
Daylight where a real skylight will not fit.
A 10" or 14" reflective tunnel that pipes daylight from the roof down into a small space. Looks like a recessed light from below. The TGR uses a rigid, mirror-finish tube for maximum brightness; the TMR uses a flexible tunnel that snakes around joists, ducts, and HVAC.
- 10" or 14" diameter options
- Rigid (TGR) or flexible (TMR) tunnel
- Looks like a recessed ceiling light from below
- Optional solar nightlight
- Optional dimmer kit
- Pitched or low-profile flashing options
- Diameters
- 10" / 14"
- Tunnel type
- Rigid (TGR) or Flexible (TMR)
- Roof pitch
- Flat to 60°
- Dome
- Acrylic with prismatic insert
- • Small bathrooms & half baths
- • Walk-in closets
- • Hallways and laundry rooms
- • Tight attic spaces between trusses
Clean, Quiet & Safe™ Glass — Standard on Every VELUX
Every VELUX residential skylight ships with the same premium glass package as standard. No upgrade fees, no fine print. Here's what's actually in it:
- Laminated inner pane
Same construction as a car windshield — if it ever cracks, the interlayer holds the glass in place. No falling shards.
- LoĒ³-366 low-emissivity coating
Blocks 95% of UV and reflects radiant heat. Keeps furniture from fading and the room from baking in summer.
- Argon-gas filled
The space between the panes is filled with argon, an inert gas that insulates better than plain air. Lower U-factor, less heat loss.
- Neat® self-cleaning outer pane
A microscopic titanium dioxide layer breaks down organic dirt in sunlight, then rain rinses it away in sheets — not droplets.
Energy Performance (typical)
- U-Factor (lower is better)
- 0.45
- Solar Heat Gain Coefficient
- 0.25
- Visible Light Transmittance
- 0.42
- UV Block
- ≈ 95%
- ENERGY STAR® rated
- Yes — all zones
Performance varies by exact model and frame size. We pull the official NFRC label for your selected unit before install.
Standard VELUX Sizes
VELUX uses two-letter size codes for deck-mounted units and four-digit codes for curb-mounted units. Here are the sizes we keep specs on:
Deck-Mounted (VSS / VSE / VS / FS)
| Code | Rough Opening (W × H) | Typical Use |
|---|---|---|
| C01 | 21" × 27½" | Closet, half bath |
| C04 | 21" × 38⅜" | Bathroom |
| C06 | 21" × 45¾" | Bathroom, hallway |
| M02 | 30½" × 30" | Bedroom |
| M04 | 30½" × 38⅜" | Bedroom, kitchen |
| M06 | 30½" × 45¾" | Living room |
| M08 | 30½" × 54" | Vaulted ceiling |
| S01 | 44¼" × 27⅜" | Wide / short rooms |
| S06 | 44¼" × 45¾" | Largest standard |
Curb-Mounted (VCS / FCM)
| Code | Outside Curb (W × L) | Typical Use |
|---|---|---|
| 2222 | 25½" × 25½" | Bath, closet |
| 2230 | 25½" × 33½" | Bath, bedroom |
| 2234 | 25½" × 37½" | Bedroom |
| 2246 | 25½" × 49½" | Living room |
| 3030 | 33½" × 33½" | Kitchen |
| 3046 | 33½" × 49½" | Vaulted ceiling |
| 4646 | 49½" × 49½" | Largest curb-mount |
Custom sizes are available on special order with extended lead times. Most Seattle homes we work on use M04, M06, or 2230.
The VELUX No Leak Promise™
When a VELUX deck-mounted skylight is installed by a Certified Installer (that's us) using a VELUX flashing kit, the installation itself is covered for 10 full years. That's the longest installation warranty in the residential skylight category. Here's the full breakdown:
We're VELUX Certified
Stark Roofing & Renovation is a VELUX-Certified Installer. That means every skylight we put in your roof gets the full 10-year No Leak Promise — automatically, no extra paperwork from you.
- ✓ Direct VELUX warranty registration
- ✓ Trained on VELUX flashing kits
- ✓ Access to factory tech support
- ✓ Genuine VELUX parts only
Smart-Home Ready Out of the Box
Both solar (VSS/VCS) and electric (VSE) skylights pair with the VELUX ACTIVE gateway and a small Netatmo sensor. The system reads the indoor temperature, humidity, and CO₂ in your room and automatically opens or closes the skylights to keep the air healthy — and shuts them when it senses rain. Apple HomeKit compatible.
- Indoor air quality automation
- Schedule-based open/close
- Apple HomeKit support
- Works with VELUX blinds
Not Sure Which VELUX Is Right For Your Room?
Tell us the room and the ceiling — we'll tell you exactly which VELUX model and size will work best. Free, no pressure, and we'll come measure if you want a real number.