09/09/2025
Unlock Precision & Performance with Roseview’s Ultimate Rose Sash Windows
When you specify windows, you’re shaping the look, performance, and longevity of a project. Roseview’s Ultimate Rose sash window delivers architectural integrity and modern performance—making it the go-to solution for conservation, new builds, and commercial work.
Key Performance Specifications:
-Ultra-slim 35 mm meeting rail — delivers timber-like finesse with superior sightlines
-True end-sealed mechanical joints and seamless run-through horns — indistinguishable from traditional timber craftsmanship
-ThermoVFlex technology — achieves a 1.2 W/m²K U-value without resorting to costly triple glazing, preserving design integrity while enhancing efficiency
-Performance & Compliance — A‑rated thermal efficiency, sound reduction, Secured-by-Design, Part Q, PAS 24, and used widely across UK conservation areas
Interactive Moment:
Which feature would most influence your specification decision?
*Ultra-slim timber-like sightlines
*High-performance U-value (1.2 W/m²K)
*Conservation-area authenticity (mechanical joints, horns)
Let us know in the comments! ⬇️
At KingsRock Joinery, we don’t just supply — we guide. Our technical support ensures seamless integration from concept through completion.
📥 Dive into the ultimate spec sheet here: https://www.roseview.co.uk/downloads/technical-guides/
📞 Or call us on 020 856 4880 to see how we cna help elvate your home.
Find our latest technical guides here. Register as an installer of our bespoke timber alternative sliding sash windows today.