Central HubCentral Hub Login

Your “one-stop” supplier for retail & commercial fenestration products

Central HubCentral Hub Login
ABOUT THE S1 ROOF LANTERN

The Sheerline S1 roof lantern is engineered to deliver maximum natural light without compromising thermal efficiency or security, making it a powerful solution for modern flat-roof projects.

Designed to remove the usual trade-offs, this aluminium roof lantern system allows installers to offer a product that combines performance, aesthetics, and reliability. It creates bright, open spaces while helping to retain heat and enhance security, giving you a strong selling point for both residential and commercial applications.

With its clean, contemporary design and advanced construction, the S1 roof lantern is ideal for extensions, orangeries, and renovations, helping you meet customer expectations while delivering a premium finish.

Key Features:

  • Thermlock® multi-chamber technology for enhanced insulation
  • Ultra-slim, modern aluminium sightlines
  • Anti-tamper glazing design for added security
  • Bespoke colour options to suit any project
WHY WORK WITH CENTRAL WINDOW SYSTEMS
At Central Window Systems, we bring the advanced engineering of Sheerline to life through precision manufacturing and consistent quality control. Every S1 roof lantern is fabricated to exact specifications, ensuring a perfect fit, strong thermal performance, and reliable long-term durability. Our streamlined production process allows installers to receive a fully prepared, installation-ready system that helps reduce time on site. As a trusted trade partner, we provide dependable supply, technical support, and expert guidance, helping you deliver high-quality roof lantern installations while keeping your projects running smoothly.
Contact Us
s1 roof lantern
  • Specification
  • Performance

Specification

The Sheerline S1 roof lantern is engineered for strength, performance, and streamlined installation, making it an ideal solution for modern flat roof projects.

  • Manufactured from the Sheerline S1 aluminium roof lantern system
  • Ultra-low line design for sleek, modern aesthetics
  • High-performance 28mm glazing unit for improved thermal efficiency
  • Unique co-extruded perimeter weather seal for enhanced weather resistance
  • Anti-tamper security screws included as standard
  • Fully enclosed anti-tamper glazing design
  • An optional Secured by Design (SBD) upgrade is available
  • Bespoke colour options to suit any project
  • Large spans up to 3.2m x 6m without the need for tie bars
  • Available in 13 distinct style configurations
s1 roof lantern

Performance

The Sheerline S1 roof lantern is engineered to deliver industry-leading performance, combining advanced thermal efficiency with enhanced security and long-term reliability.

  • One of the UK’s most secure aluminium roof lantern systems
  • Innovative Thermlock® multi-chamber technology for superior insulation
  • More thermally efficient than traditional polyamide systems
  • Muntin bar-free vent design to help prevent leaks
  • Option for acoustic-damping glass to reduce external noise
  • Refined in-line corner and rafter end caps for a clean, modern finish
  • Engineered for durability, weather resistance, and consistent performance
s1 roof lantern
https://www.centralwindowsystems.co.uk/wp-content/uploads/2025/12/R53-–-S1-Lantern-Ridge-Thermal-Render.jpg

Thermlock® Technology

https://www.centralwindowsystems.co.uk/wp-content/uploads/2026/04/Lantern-Security-Upgrade-v1.0-web.webp

Secured by Design Upgrade

https://www.centralwindowsystems.co.uk/wp-content/uploads/2026/04/Lantern-Vent-Dusk-v1.1-closed-extendedweb.jpg

Flush Intelligent Ventilation

Industry-Leading Security

The Sheerline S1 roof lantern is designed with security at its core, eliminating common weak points found in traditional roof lantern systems.

A combination of anti-tamper screws, fully enclosed glazing, security tape, and a high-security ridge system creates a robust barrier against intrusion. For projects requiring enhanced protection, an optional Secured by Design (SBD) upgrade provides additional reinforcement, making it a strong selling point for security-conscious homeowners.

Advanced Thermal Efficiency

Built around innovative Thermlock® multi-chamber technology, the S1 roof lantern delivers exceptional insulation performance. Combined with high-performance 28mm glazing and a co-extruded perimeter seal, it helps retain heat while protecting against the elements.

For homeowners, this means improved comfort, reduced heat loss, and greater energy efficiency, making it ideal for modern extensions and living spaces.

Contact Us
s1 roof lantern
s1 roof lantern

Sleek, Modern Aesthetics

Designed with contemporary architecture in mind, the S1 roof lantern features an ultra-low line profile and clean, minimalist styling.

Refined in-line corner and rafter end caps create a smooth, streamlined appearance without bulky protrusions. The result is a sleek aluminium roof lantern that enhances natural light while complementing both modern and traditional properties.

Flexible Design & Large Spans

The S1 system offers excellent versatility, making it suitable for a wide range of projects.

With 13 configuration options and the ability to span up to 3.2m x 6m without tie bars, it allows for large, uninterrupted glazed areas. A choice of standard and bespoke colours ensures the perfect finish for any design scheme, giving installers the flexibility to meet diverse client requirements.

Get A Quote

Why Choose Central Window Systems?

Experience Matters

With a wealth of experience and knowledge, we are a stable company who will be here to support you in the years to come.

Highest Quality

Exceptional product quality is a prerequisite at Central Window Systems. We offer the most advanced window and doors available on the market.

Professional Standards

Delivering products to you on-time, in full and in pristine condition ensuring your professional installation is completed with the support you expect from your supplier.

Central Hub

Access a full range of marketing, sales & support on-the-go.

For busy glazing installers, our marketing and technical support is always within reach. As a partner of Central Window Systems, you’ll have instant access to a full library of technical resources, product information, and promotional materials, right from your smartphone. You can also upgrade to one of our Central Growth Kits to help track leads and win more business.

  • Showroom Materials & support
  • Brochures, Downloads & Images
  • Latest News & Notification System
  • Our Central Growth Kit
Register Now
Free Trade Quote

Get a quick and accurate quote with our simple trade form

Get a Trade Quote
laptop central window systems
Become A Central Installer

Benefit from our full product portfolio & support services

Become an Installer
installation worker
contact us online quote Become A Trade Partner Find an Installer