S1 Roof Lantern

Secure, sustainable and stylish, the UK’s most secure roof lantern. Flood your home in light with our ultra secure, thermally efficient S1 roof lanterns.

Choosing the right roof lantern for a project is an important decision. They should let in the maximum amount of light, yet keep heat in a property as well as keeping would be intruders out. Letting homeowners enjoy more natural light and amazing night time views of the stars, while bringing a sense of space and tranquillity to their home. This is why we have designed the S1 aluminium roof lantern from the ground up to meet these needs. Building on years of experience, we’ve incorporated many new innovative ideas to create a warmer, slimmer and much more secure roof lantern.

Great looks from every angle

S1 features ultra low line aesthetics so rafter and hip top caps sit close to the glazing level on the exterior, creating a sleek modern look. Completing this refined architectural appearance our corner and rafter end caps run perfectly in line with the perimeter, so no unsightly angles jut out to spoil the perfect lines of this contemporary high-performance aluminium lantern.

Thermlock® technology helps keep heating bills lower

The S1 lantern combines aluminium’s clean lines with exceptional thermal performance and features our innovative Thermlock® multi-chamber technology to keep properties well insulated against the worst of the UK weather. This coupled to high performance 28mm glazing means our lantern roofs offer class leading thermal performance, far superior to traditional polyamide systems based around 24mm glazing. A unique co-extruded perimeter seal also ensures draughts and rain are kept safely outside. 28mm glazing also allows acoustic dampening glass to be fitted if required.

Built-on Innovation

The UK’s most secure lantern, keeping homes safe

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 a property via its roof lantern. All of these innovative features combined make Sheerline’s S1 system the UK’s most secure aluminium lantern roof*.
So if you are looking for a lantern that comes with extra peace of mind as standard – then we have you covered.

*Mainstream residential roof lantern – not utilising bonded glass

Automation options

Choosing an optional rain sensor can automate the closing of the SheerVent® roof vent for added peace of mind.

The Sheerline SI Lantern system is covered by the following patents / patents pending:

UK Patent Number: G82569209 – A Joint For a Fenestration Unit
European Patent Pending: 19188948.4 – A Joint For a Fenestration Unit
US Patent Pending: 16/525787 – A Joint For a Fenestration Unit
UK Patent Pending: 2104344.3 – Lantern Roof Corner Assembly
UK Patent Pending: 2104484.7 – Lantern Roof Hip Rafter Assembly

Flush Intelligent Ventilation

With a sleek minimalist design that sits perfectly flush with S1’s discreet rafter bars, and with powered actuators that are intelligently automated, Sheerline has reimagined roof vents, bringing them into the 21st century at last. Dispensing with the need for muntin bars, which are prone to issues, SheerVent® offers reliable ventilation without the risk of leaks.