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6 metre roof lantern: with bars or a different roof type

A 6 metre roof lantern can no longer be a mono-pitch in one panel, because that limit is 5 metres.

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The short answer

A 6 metre roof lantern can no longer be a mono-pitch in one panel, because that limit is 5 metres. You then choose a mono-pitch with one or more thermally broken bars, or a different roof type such as a gable roof lantern, which goes up to 6 metres long as standard. DagLichtDesign makes both to measure.

A 6 metre roof lantern as a mono-pitch with bars

A 6 metre roof lantern built as a mono-pitch roof lantern gets at least one intermediate bar. That bar is thermally broken, so no cold bridge is created. The glass is divided over two or more panels, for example with one bar in the middle.

A bar also has advantages. The glass panels become smaller and lighter, which makes lifting and fitting easier. The drawback is a line in your view. Many people do not mind, especially with a dark frame that fades against the sky. The trade-off is in with or without an intermediate bar.

  • At least one thermally broken intermediate bar
  • Smaller, lighter glass panels
  • Aluminium frame in any RAL colour

Gable or hipped at 6 metres

If you do not want a bar across the glass, look at a different roof type. A gable roof lantern goes up to 6 metres long and 4 metres wide per roof surface as standard. A length of 6 metres is exactly within that. The two surfaces meet at a ridge, which gives a classic look and spreads the light in two directions.

A hipped roof lantern we make up to 9 m² of glass in one piece. At 6 metres long you soon exceed that, and then we work with segmentation and concealed bars. The choice depends on the shape of the room. Read gable or hipped roof lantern for the differences.

  • Gable: up to 6 m long and 4 m wide per roof surface
  • Hipped: up to 9 m² of glass in one piece
  • Larger is possible in modules or with concealed bars

Fitting and structure at 6 metres

A 6 metre roof lantern needs a solid base. The opening in the roof becomes large, so the joists need substantial trimming. A contractor or structural engineer assesses whether the structure allows it. Lifting is almost always done with a crane or aerial platform. Every delivery includes an installation manual per roof type, and a CAD file is available on request.

Made to measure on this scale has a lead time from 2 weeks after approval, up to 8 weeks for complex projects or specific glass choices. So plan the roof lantern in early, so it is ready when the upstand is in place.

Which one do you choose?

If you want the mono-pitch shape across the full width, a mono-pitch with bars is the simplest route. If you want a more spacious effect or light from several angles, a gable or hipped roof lantern suits better. Up to 5 metres a mono-pitch can still be one panel, see a 5 metre roof lantern. With a sketch, the dimensions and a photo you get a quote within 24 hours with the options side by side.

Frequently asked questions

Can a 6 metre roof lantern be made in one piece?

Not as a mono-pitch, which goes up to 5 metres in one panel. A gable roof lantern 6 metres long is exactly within the standard range, which goes up to 6 metres. A hipped roof lantern of that size we make with segmentation.

Is an intermediate bar visible?

Yes, as a narrow line in the glass. With a frame in jet black or anthracite it barely shows against the sky. If you do not want a bar across the glass, look at a gable roof lantern.

How much does a 6 metre roof lantern cost?

That depends on the type, depth and glass. For reference: a mono-pitch starts from €1,532 and a gable from €2,399, and a 6 metre roof lantern sits above that. You get a quote within 24 hours.

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