Sheerline Bespoke

The S1 Aluminium Roof Lantern from Sheerline Bespoke is a pre-engineered roof glazing system designed to deliver maximum natural light, strong thermal performance and a clean, low-profile finish.

Built for the UK market, the S1 combines slim 50mm sightlines with a shallow external profile to create a modern architectural look while maintaining structural strength. Its Thermlock® technology improves insulation performance, helping to reduce heat loss and support energy-efficient extensions and living spaces.

Security is a core part of the design. The system uses clamping plates and security screws to prevent glass removal, even if external caps are compromised. This addresses a known weakness in traditional roof lanterns and provides added protection against forced entry and weather exposure.

The S1 is supplied as a precision-engineered, ready-to-fit system, making it installer-friendly and reducing on-site errors. Features such as hook brackets, pre-designed components and a rigid eaves beam simplify installation and improve consistency across projects.

For ventilation, the lantern can be specified with SheerVent® roof vents, which use fully insulated 28mm glazing and integrated rain sensors to allow controlled airflow without compromising thermal performance or security.

Additional options include integrated LED lighting channels within the ridge and eaves, allowing installers to add lighting features without further modification.

With a snow load rating of 1.2kN/m² across the UK, the S1 is engineered to perform reliably in British weather conditions. A wide choice of configurations, from pyramid styles to larger bespoke layouts, ensures it can be adapted to suit a range of residential and commercial projects.

In practical terms, the S1 Aluminium Roof Lantern offers a balance of design, performance and ease of installation, making it a strong option for fabricators and installers looking to deliver high-quality aluminium roofing solutions.