Openable round Heatstop polycarbonate skylight opal


Openable round Heatstop polycarbonate skylight opal
The polycarbonate Heatstop skylight is heat-resistant thanks to the Heatstop coating, which filters out infrared rays from the sun. This reduces the heating under the skylight to a minimum. Double-walled opal and round model.
  • Reflects 49% of thermal radiation
  • Less overheating with zenith light
  • Long-lasting Heatstop layer
  • UV-resistant, no yellowing
  • Transparent with opal pearlescent gloss


Armoured skylight

Looking for an unbreakable skylight? Then polycarbonate is the best choice. The polycarbonate is highly impact-resistant. That is why we call it an ‘armoured skylight‘.

No discolouration by UV light

The polycarbonate that Skylux uses is UV-resistant, so the skylight maintains its colour and light transmission.

Round skylights are especially used for their aesthetic look. They fit nicely in modern rooms and offer an appealing light distribution.


Avoid solar heat, go for Heatstop

Prevent your room from heating up. Our polycarbonate skylights are also available as Heatstop version. This means an additional heat-reflecting Heatstop layer is provided, which filters out infrared rays from the sun. This reduces the heating under the skylight. The Heatstop skylight has a pearlescent look.

An opal skylight is milky white and slightly less translucent than a clear skylight. The difference, however, is very small. The main reason why people choose an opal skylight is because it partly reflects solar heat. A clear skylight allows almost all heat rays to pass through, while an opal skylight only lets 42% through. The milky white appearance also provides privacy.


Recognisable look

The red dome caps provide a recognisable look. If you see the red caps, you know you are looking at a polycarbonate skylight. The cap is made of solid plastic and has a press seal for excellent watertightness.


Suited for unheated buildings

A single- or double-walled skylight is perfect for unheated buildings. If you want a skylight with better insulation, then choose a three-walled skylight or better.  A skylight in your home is a good daylight solution, but a skylight that can be opened for fresh air ventilation is even better. An openable skylight requires a PVC frame between the dome walls and the curb. The frame is highly insulating and makes sure the seal is perfectly pressed against the curb when closing the skylight. Skylux pre-mounts everything for you. You only need to choose which opening system you want to have installed: manual or electric. This allows for a quick and easy installation.

Openable round Heatstop polycarbonate skylight opal

Technical specifications

Polycarbonate Heatstop
Number of walls
Insulation value
2.9 W/m²K
Acoustic value Rw
20 dB
Fall-through safety
Fire class
LT value
41 %
g value
45 %
10 year


Skylux offers extensive technical information to make your choice even easier.
Whether you are looking for a brochure, price list, drawing, technical file or mounting instructions: you can download the desired documents with just one click.

Related products


A skylight or flat roof window requires a curb for the installation on the roof. A skylight curb ensures rain water drainage and avoids water stagnation. An indispensable element, unless there already is an existing curb mounted on the roof.
Discover all curbs
1 from 6