Sheerline’s S3 architectural glazed roof redefines thermal performance expectations

Engineered using Sheerline’s advanced Thermlock® technology, the S3 premium single-pitch aluminium roofing system sets a new benchmark for thermal performance, aesthetics, and installer-friendly design.

At the heart of the S3’s performance is its fully thermally broken architecture, including thermally insulated rafter bars and an advanced PVC thermal break positioned directly in line with the glass. This prevents cold bridging and creates a continuous thermal barrier between inside and out.

Chris Cooke, Commercial Director at Sheerline Bespoke, said of the innovation behind the new system: “S3’s substantial PVC thermal break that sits perfectly in line with the glazed panels is a major leap forward in glass roof engineering.

“The result is a glazing bar that’s 230% as thermally efficient than traditional PVC-clad conservatory roofs we’re all familiar with.

“This offers homeowners year-round comfort and installers a high-value product they can specify with confidence.”

The S3 also delivers the sleek, minimalist aesthetic today’s homeowners expect from high-end architectural glazing. Its all-aluminium finish, sharp sightlines and refined detailing mirror Sheerline’s award-winning S1 Roof Lantern, while its ability to support longer spans and larger projections opens the door to expansive, contemporary garden rooms and glazed extensions.

Installers will also appreciate the system’s practicality. Designed for fast, straightforward installation, the S3 features a triple-lock wall plate that eliminates potential leak paths while adding a further thermal barrier. Pitches are also factory set, again speeding up installation. The roof is also available with Sheervent®, Sheerline’s stylish automated ventilation solution, making it ideal for modern living spaces where comfort and controllability are key.

“The S3 doesn’t just look stunning,” added Chris. “It’s been engineered from the ground up to offer the structural integrity, thermal efficiency and installation benefits that today’s premium extension market demands.”

With its blend of architectural refinement and cutting-edge thermal innovation, the S3 positions Sheerline Bespoke as a clear leader in the evolution of high-performance aluminium roofing systems.