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

Discover more about our award winning lantern roof

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 you and your property 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.


S1 is available in 13 styles up to 3.2 x 6m without tie bars.
Other bespoke colours are available

Square Style 1

2-way Style 2

2-way Style 3

2-way Style 4

2-way Style 5

Square Style 6
Jet Black

2-way Style 7
Jet Black

2-way Style 8
Jet Black

2-way Style 9
Jet Black

2-way Style 10
Pure White

3-way Style 11
Pure White

3-way Style 12
Pure White

3-way Style 13
Pure White

The UK’s most secure lantern, keeps your home 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 your property via your flat 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

Secured by Design (SBD) upgrade

This upgrade adds an extra layer of defence ensuring that your S1 aluminium roof lantern is secure enough to withstand opportunist criminals, providing extra peace of mind.

Additional security clamping plates, lock laminated glass panels in place, preventing them from being lifted and removed by would-be intruders*.

This optional security upgrade is invisible on finished roofs and doesn’t compromise the stylish design or thermal performance that Sheerline products are known for.

*Based on SBD’s test criteria

Flush Intelligent Ventilation

With a sleek minimalist design that sits perfectly flush with S1’s discreet rafter bars, and with optional powered actuators that can be 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.

Automation options

Optional rain, and rain, wind and light sensors can automate the closing of your roof vent for added peace of mind.

Contact us to take the next step

To be put in touch with your closest fabricator or installer, or for more information please get in touch.

Contact us