Advice · 5 min · 2026-03-15
Flat-roof lantern vs roof window: which to choose?
Comparison of roof lanterns for flat roofs and VELUX windows for pitched roofs.
When to choose a lantern?
Lanterns suit flat or very low-pitch roofs. They bring light and sometimes ventilation to rooms below.
When to choose a roof window?
On pitched roofs (tiles, slate), a VELUX roof window is the standard: opening, insulation and a wide accessory range.
Combining both
Mixed roofs can combine windows and lanterns. Guimapex advises based on configuration.
FAQ
- Do lanterns insulate well?
- Recent high-performance glazing models insulate well; choice depends on required performance.
- Can an old lantern be replaced?
- Yes. Replacement often improves waterproofing and thermal comfort.
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