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S1 Lantern roof
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TeamFrames recommended
The UK’s most secure, sustainable and stylish roof lantern
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The innovative construction of the S1 system eliminates the security weaknesses of traditional lantern designs.

Features such as anti-tamper screws, enclosed anti-tamper glazing, security tape and our patent pending glass lock, alongside our unique high security ridge end, ensure there isn’t an easy way to enter your property via your flat roof lantern.

All of these innovative features combine to make Sheerline’s S1 system the UK’s most secure non-bonded aluminium lantern roof.

The UK’s most secure lantern, keeps you and your home safe.


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  • Thermlock® insulated thermal breaks
  • Up to 3.2 x 6m without tie bars
  • GlassLOCK glass retention
  • Anti-tamper screws and glazing
  • 28mm double-glazing 1.0 W/m2K
  • 50mm rafter, hip and ridge sight-lines
  • 25-degree roof pitch

Available Finishes

External colour can be used on interior and exterior of the roof, or a contrasting colour can be applied to the interior.
Jet Black
Pure White
Anthracite Grey
Bespoke Colours
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