Christmas leave 2025

With every purchase of at least €1,000 (excl. VAT) in Reynchemie products, you’ll receive a free Reynchemie Winter Pack

For decades, cement screed has been the standard in residential and commercial buildings. Yet interest is growing in an ancient material making a modern comeback: lime screed. With renewed focus on sustainability and healthy indoor environments, natural hydraulic lime (NHL) is once again attracting attention across the construction sector.

Whether on new constructions or renovation projects, a recurring façade issue is becoming increasingly common: a light-grey film on facing bricks. This alteration is not a temporary deposit such as cement haze or salt efflorescence, but the long-term consequence of a chemical process: brick greying, also known as gypsum formation on bricks. Brick greying does not only affect the aesthetic appearance of a building – it also significantly increases long-term façade maintenance needs.