Square Roof Lantern

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S1 Roof Lantern Square 4 Pane Active Blue Glass

Name: Square Roof Lantern
Brand: Sheerline
SKU: S1S1AB
Price: 711.05 GBP
Availability: InStock

Transform your living space with premium British-made roof lanterns featuring cutting-edge thermal technology and stunning blue-tinted glass

4 pane square roof lantern with active blue tinted glass

Key Benefits

✓ Maximum natural light with active blue glass filtering
✓ Superior thermal efficiency with Thermlock® technology
✓ Ultra-secure construction with integrated security fixings
✓ Custom sizes available up to 2.4m × 4.0m
✓ Made in Britain with 30+ years manufacturing expertise

Ordering Information

Important: The active blue glass will appear in different depths of blue depending on lighting conditions. Images are representative only.

Custom Sizing

Need a specific size? Select the next size up from our dropdown menu, then specify your exact dimensions. We'll manufacture to your precise requirements.

Standard Colour Combinations

Grey/White

White/White

Grey/Grey

All standard combinations are available at no additional cost

Custom RAL Colours

We can match virtually any RAL colour specification. Contact us for pricing and lead times on custom colour options.

Product Features

Thermlock® Technology

Multi-chamber thermal technology dramatically reduces heat loss while maintaining ultra-low line aesthetics.

Premium Construction

Hardwearing powder-coated aluminium inside and out, built to withstand British weather conditions.

Security Features

Integrated security fixings provide peace of mind and enhanced protection for your home.

LED Ready

Integral channel for LED lights allows seamless integration of modern lighting solutions.

Why Choose Our S1 Roof Lantern?

Choosing the right roof lantern requires balancing maximum light transmission with thermal efficiency. Our S1 aluminium roof lantern delivers both, creating stunning nighttime views and flooding your living space with natural light while keeping energy costs low.

Now manufactured at Master Plastics, our lanterns build on over 30 years of experience to offer a warmer, slimmer, and significantly more energy-efficient solution than traditional designs.

Technical diagram showing eaves beam with thermal break to prevent heat loss

Resources

Download our comprehensive brochure for detailed specifications, installation guidelines, and design inspiration.

See It In Action

Watch our detailed video showcasing the Sheerline roof lantern features, installation process, and real-world performance.

Ready to Transform Your Space?

Get expert advice on sizing, colours, and installation. Our team is here to help you choose the perfect roof lantern for your project.

???? 01179 719922

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Design
Led Lighting	All S1 lanterns come with an integral LED light channel built-in around the perimeter of the roof pointing up into the glass – giving you an easy way to light to the opening without unsightly fittings
U-Value	28mm glazing 1.0 U-value W/(m²K)* Thermal transmittance, also known as a U-value, measures the rate of transfer of heat. The better insulated a window is, the lower the U-value will be.
Snow Loading	Rated for a snow load of 1.2 KN/m2. Covering the whole of the UK up to 200m altitudes.

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