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.