Lantern Launch

A lantern rooflight

Sheerline continues to expand its aluminium products with the launch of a next generation aluminium roof lantern. It combines low-level styling with performance to create a secure, thermally efficient lantern.

It is available in three stocked colours across 10 different styles, with two and four-way options and designed around 28mm glazing.

Sheerline’s S1 has a number of security innovations. Overlapping cast end caps prevent the bar and top caps from being removed and anti-tamper screws are provided to attach end caps to roof bars. High-security 2 and 4 way top caps are also bolted through from the inside preventing easy removal. The arrangement of the interlocking eaves beam means that the glass cannot be removed from the outside and features a patent pending glass lock, lowering the risk of break-ins even further.


Energy efficiency

Sheerline is a brand owned by Garnalex which also offers the Classic and Prestige systems for windows and doors. The roof lantern is designed with the same Thermlock multi-chambered thermal breaks as Classic and Prestige to offer very good thermal performance. Cold bridging is prevented by ensuring the aluminium is fully encapsulated below the glass line with a co-extruded perimeter seal.


Light and sight

Slim, consistent 50mm rafter, hip and ridge sightlines maximise light flooding into homes, creating bright, airy interiors. The S1 lantern also features ultra low line aesthetics, so rafter and hip top caps sit just 8mm above the glazing level on the exterior, creating a sleek modern look.

Completing this refined architectural appearance, corner and rafter end caps run in line with its perimeter, so no unsightly angles jut out to spoil the lines of the lantern. It creates the ideal balance of understated refinement, contemporary looks and quality standards.


 “We expect the S1 roof lantern to transform the aluminium roof lantern market, much like Classic and Prestige have done for aluminium windows and doors.”

– Roger Hartshorn 

CEO, Garnalex



"Not only is it beautiful, it also tackles some of the security issues that customers face with existing products," adds Garnalex' Hartshorn. "Our team of experts have reinvented aluminium roof lanterns into something that is ultra-secure and thermally efficient as well as being stylish and contemporary. The latest addition to the Sheerline family is fabricator friendly and offers easy, trouble-free installation. And it’s available on short, reliable lead times.”

Picture: Sheerline has launche the ‘next generation’ S1 roof lantern.

Article written by Cathryn Ellis
24th June 2021


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