Did you know that more than half of the skylights sold today are still double-walled? That is an astonishing figure, certainly if you know that double-walled skylights are far less insulating compared to multi-walled skylights.

Don't think twice

Which skylight should I choose? A question that often occurs on internet forums. People ask themselves if a double-walled skylight is sufficient for their building project. Skylux does not have to think twice: we advise
the best insulation possible. The best solution is a 4- or 5-walled skylight, if the budget allows
!

 

The more dome walls, the better the U value

Following versions are recommended, giving their U value: 4-walled (Ut = 1.28), 5-walled (Ut = 0.99), EP10 (Ut = 1.30) plastic skylights. The new flat roof windows iWindow2, iWindow3 and iDome (Flex) have an even better result of course.

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Skylux op Polyclose 2026: outdoor living met Calista in de hoofdrol

Skylux at Polyclose 2026: outdoor living with Calista in the leading role

From 14 to 16 January 2026, Skylux will be present at Polyclose, the leading trade fair for window, door, sunblind, facade and access technology. You can find us at stand 1172, where this year we are focusing on outdoor living.

Read moreabout Skylux at Polyclose 2026: outdoor living with Calista in the leading role