Archello Awards 2026 · Enter your projects before 30 September 2026
Archello Awards 2026 · Enter your projects before 30 September 2026
  • GWP Total: 0.55 kg CO₂e/m²
  • GWP A1-A3: 0.43 kg CO₂e/m²

Stolit® K1 is a mineral-based render finish designed for high-performance façades, combining durability, breathability, and refined surface texture. The coating provides a fine-grain aesthetic while ensuring strong adhesion, crack resistance, and long-term color stability. Its mineral formulation contributes to non-combustibility and allows the façade to maintain vapor permeability, supporting a healthy building envelope.

When applied to systems such as StoTherm® Mineral COB, Stolit® K1 reinforces the façade’s environmental performance by offering a low-VOC, cement-free solution suitable for bio-based or timber structures. The thin, stone-colored finish ensures visual uniformity, even over curved or irregular surfaces, as demonstrated in the Claudine Hermann Secondary School in Massy.

The render’s mechanical strength, ease of maintenance, and resistance to weathering make it a preferred finish for contemporary educational and public buildings pursuing low-carbon and durable envelope design.

Collège Claudine Hermann

Designed by Ameller Dubois, the new Claudine Hermann Secondary School (Collège Claudine Hermann) stands in the southern Paris suburb of Massy, on the Vilgénis site—formerly home to the Air France Aviation Apprenticeship Training Center. Set within 22 hectares of woodland, the school occupies a green setting that supports environmental integration. Opened for the 2024...

Read more