Plastic skylights
The proven standard for every flat roof. For more than 60 years, the trusted choice of installers, contractors and homeowners. More than 110 sizes, thousands of configurations, and always from our own stock. Whether you are renovating, building new or specifying, the perfect skylight exists and is available fast.
Materials
Your light. Your choice.
Safety and lighting comfort go hand in hand. Choose classic acrylic for maximum clarity, or the Skylux 'armoured skylight' in polycarbonate: virtually unbreakable, impact-resistant and burglar-resistant. Combine it with the right type: Clear for maximum light output, Opal for soft privacy, or Heatstop, which reflects solar heat without blocking daylight.
Integration
New build or renovation. Always the right fit.
Installing a skylight should not cause delays. That is why our systems are designed for speed and precision. In new builds, our PVC curbs connect perfectly to every roof covering. In renovations, you replace your old skylight without demolition work, while keeping the existing opening. No complex structures, just intelligent design that fits right away.
Performance
From single-walled to 5-walled: choose your insulation level.
The number of dome walls determines the insulation value (U-value) of your installation. From 1-walled for open canopies to 5-walled for passive buildings. Every step up means less heat loss, less noise nuisance and lower energy consumption. A smart choice for every building standard and every budget.
Ventilation
Manual or electric. You control the climate.
A skylight with ventilation does double duty: daylight and air quality in one installation. Choose a manual version with spindle for the simplest installation, or an electric motor for maximum ease of use. Quiet operation, minimal maintenance, immediate added value for any room.
Plug & Play
Curb. Skylight. Done.
Why make it difficult when it can be easy? Our skylights are developed for speed on the roof. In new builds, you install the curb and the skylight in no time. In renovations, a new Skylux skylight fits directly onto your existing Skylux curb. Is the old curb from another brand? With our smart adapter frame, it always fits. Simple, fast and watertight.
Skylight models: fixed, openable, roof access & SHE
Maximum light, optimal insulation or burglar resistance - for every project, there is a Skylux skylight that fits perfectly. From a simple fixed version to certified SHE systems for industry and stairwells.
From our own stock.
Available within 5 working days. Ready to install.
Choose the skylight that suits your project.
A skylight is more than a hole in the roof. It is a choice for quality, safety and lasting comfort. But every project calls for a different combination. Start with the basics: which material, which glass finish and how many walls does your situation need? From ultra-strong to super-insulating.
New light. No demolition work needed.
Replace your old, weathered skylight? With the smart Skylux adapter frame, you can quickly install a brand-new skylight or iWindow flat roof window on your existing curb. No damaged roofing, no extra costs, 100% watertight.
Complete your skylight
Complete every installation. From PVC curbs and pleated screens to insect screens and electric operation - everything to ensure your skylight performs at its best. For both new-build and renovation, for every room and every use.
Technical specifications: Acrylic, Polycarbonate & Heatstop
Every project has different requirements. Whether you opt for maximum daylight or minimum heat loss: the details make the difference. Compare the technical properties of acrylic, polycarbonate and our insulating dome walls side by side. Choose based on facts.
* Legend:H (Clear)= Transparent for maximum visibility.O (Opal)= Milky white for privacy and soft light.
Acrylic (PMMA)
—Polycarbonate (PC)
—Heatstop (Solar control)
The heat-reflecting outer layer is standard pearl (opaque).
1-walled
Single-walled
Insulation: 5.17 W/m²K
Light (LT): H 90% / O 83%
Solar (g): H 87% / O 76%
Sound (Rw): -
1-walled
Single-walled
Insulation: 5.17 W/m²K
Light (LT): H 88% / O 58%
Solar (g): H 83% / O 60%
Sound (Rw): -
1-walled
Single-walled
Insulation: 5.17 W/m²K
Light (LT): Opal only (49%)
Solar (g): 59%
Sound (Rw): -
2-walled
Double-walled
Insulation: 2.90 W/m²K
Light (LT): H 81% / O 69%
Solar (g): H 75% / O 58%
Sound (Rw): 20 dB
2-walled
Double-walled
Insulation: 2.90 W/m²K
Light (LT): H 79% / O 73%
Solar (g): H 72% / O 63%
Sound (Rw): 20 dB
2-walled
Double-walled
Insulation: 2.90 W/m²K
Light (LT): H 44% / O 41%
Solar (g): H 51% / O 45%
Sound (Rw): 20 dB
3-walled
Triple-walled
Insulation: 1.70 W/m²K
Light (LT): H 73% / O 62%
Solar (g): H 65% / O 51%
Sound (Rw): 22 dB
3-walled
Triple-walled
Insulation: 1.70 W/m²K
Light (LT): H 71% / O 61%
Solar (g): H 63% / O 48%
Sound (Rw): 22 dB
3-walled
Triple-walled
Insulation: 1.70 W/m²K
Light (LT): H 40% / O 37%
Solar (g): H 44% / O 39%
Sound (Rw): 22 dB
4-walled
4-walled
Insulation: 1.28 W/m²K
Light (LT): H 64% / O 59%
Solar (g): H 54% / O 48%
Sound (Rw): 23 dB
4-walled
4-walled
Insulation: 1.28 W/m²K
Light (LT): H 64% / O 59%
Solar (g): H 52% / O 46%
Sound (Rw): 23 dB
4-walled
4-walled
Insulation: 1.28 W/m²K
Light (LT): H 35% / O 32%
Solar (g): H 37% / O 32%
Sound (Rw): 23 dB
5-walled
5-walled
Insulation: 0.99 W/m²K
Light (LT): H 58% / O 53%
Solar (g): H 47% / O 41%
Sound (Rw): 24 dB
5-walled
5-walled
Insulation: 0.99 W/m²K
Light (LT): H 58% / O 53%
Solar (g): H 47% / O 41%
Sound (Rw): 24 dB
Specifications and instructions.
All documentation for design, specification and installation. Technical files, installation instructions and drawings - ready to download.
Frequently asked questions about skylights
Can I replace my old skylight with a new Skylux skylight?
Yes, that is very simple. Our skylights have universal dimensions. In most cases, you can unscrew the old skylight and place the new one directly on the existing curb. Is your current curb not from Skylux or does it have a different size? Then our universal adapter frame offers the solution. This way, you enjoy an upgrade without any demolition work on the roof.
What is the difference between acrylic and polycarbonate?
The choice depends on your safety requirements. Acrylic (PMMA) is our crystal-clear standard; it is 10 times stronger than glass and highly weather-resistant. We call polycarbonate (PC) the ‘armoured skylight’. This material is virtually unbreakable (250 times stronger than glass), extremely impact-resistant and burglary-resistant. For maximum safety, we always recommend polycarbonate.
How many walls (layers) do I need for good insulation?
The number of walls determines the insulation value (U-value). The more walls, the better the heat stays inside. A single-walled skylight is only suitable for open canopies (carports). A double-walled skylight is sufficient for unheated spaces such as garages. For a heated home or office, a triple-walled skylight is the minimum standard. For maximum energy savings and passive construction, choose a four- or five-walled skylight.
How do I measure the right size for my skylight?
Always order according to the daylight size: the clear opening visible from inside, measured along the inside of the curb, from edge to edge. All our standard sizes (for example 100 × 100 cm) refer to the daylight size.
Replacing an existing skylight or creating a new roof opening? Our measuring guide shows you at a glance how to measure correctly and which size to order.
Does rain make a lot of noise on a plastic skylight?
During heavy rainfall, you will hear tapping sounds on plastic. However, this sound is significantly reduced by choosing a multi-walled skylight. The air layers between the skylight dome walls act as sound insulation. Looking for complete silence? Then consider our glass iWindow flat roof windows, which reduce impact noise to a minimum.
Does a skylight help keep heat out in summer?
As standard, a skylight lets in a lot of light and heat. For south-facing spaces or rooms that heat up quickly, we recommend the Heatstop version. These skylights are fitted with a mother-of-pearl coating that reflects the sun’s infrared rays. This keeps the heat out effectively, while you still enjoy natural daylight.
Sizing
What size skylight do you need?
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Daylight size= your order size
The clear opening visible from inside. Measured along the inside of the curb, from edge to edge.
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Roof openingstraight curb = daylight size
The opening in your roof. With a straight curb (/00), it equals the daylight size. With a sloped curb (/20 or /30), it is 20 or 30 cm larger.
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External skylight size= daylight size + 160 mm
What you measure on the outside of an existing skylight. The flange extends 80 mm on each side. Subtract 160 mm to find your daylight size.
