The facade is the most heavily exposed surface of a building: UV, precipitation, freeze-thaw cycles, wind, and biological effects all at once. Plaster and stone facades gradually deteriorate due to these conditions — impregnation and protective treatments can slow this process and extend the facade's lifespan.
Facade protection is not painting — paint forms a surface layer that eventually peels off. Facade impregnation and water-repellent treatment penetrate into the plaster, brick, or stone material, making the surface water-repellent without visibly changing its appearance. Moisture is not absorbed, algae and mold do not settle, and freeze-thaw cycles cause less damage.
Silan and siloxane-based impregnations deeply penetrate the pore network of plaster, brick, and stone, forming a water-repellent layer — water absorption is drastically reduced while vapor permeability remains. Water-repellent creams and gels are more concentrated silan/siloxane-based products that provide deeper penetration, especially effective on dusty and cracked plasters. Biological coating inhibitors are biocidal substances that prevent and inhibit the growth of algae, moss, fungi, and lichens.
For new facades, the new plaster should be treated after sufficient drying and curing but before the first appearance of biological growth — prevention is significantly more effective than treatment. After renovation, if the facade plaster has been repaired or replaced, treating the new surface extends its lifespan. In biologically active locations — shaded, humid facades and buildings near water — repeated treatment every one or two years is necessary.
Browse our facade protection products or request advice to assemble a protection system suited to your facade material and exposure conditions.
The Kerakoll Color Collection is an integrated project that includes innovative materials - resin, cement, handcrafted wood, microcoatings, paints, and glazes - coordinated on a single color palette.
