S1 Aluminium Roof
The S1 Lantern Roof by Sheerline is the most advanced aluminium lantern available in the UK
Engineered from the ground up, it combines elegant low-line design, cutting-edge thermal insulation, and unrivalled security performance – all in one beautifully balanced product.
Key Features
- Available in 13 configurations, from pyramid to orangery layouts
- 3-way design allows large spans without jack rafters
- Up to 3.2m x 6m span without tie bars
- Ultra-low line external caps for sleek modern appearance
- Uniform 50mm rafter, hip and ridge sightlines
- Optional LED lighting channel and automated ventilation
- Innovative Thermlock® multi-chamber system for exceptional insulation
- Designed as the UK’s most secure aluminium lantern
- U-values as low as 1.0 W/m²K (subject to glass spec)
- PAS 24:2016 certified as standard
- Fully weather-sealed with co-extruded perimeter seal
- Made from 100% recyclable aluminium, one of the most sustainable materials
- Available in 12 powder-coated finishes
Design Elements
Built around the patented Thermlock® system and designed to accept 28mm glazing, the S1 roof keeps your home warm, quiet, and dry – while letting in floods of natural light. Whether you’re working on a contemporary extension or a traditional orangery, the S1 adapts to your project with clean lines, robust structure, and options like LED lighting and automated SheerVent® ventilation.
Colours & Finishes
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