Challenges in façade repair and logistics

The façade was significantly damaged, with tiles coming loose and posing a safety risk. This is why protective nets had to be installed beforehand. The dense location of the building, coupled with limited access and loading and unloading restrictions, required precise control of the delivery of materials. Furthermore, the work had to be carried out during normal business hours, necessitating close coordination between the construction company, façade consultants and MC to minimise the impact on residents and businesses.

Technical solutions from MC for concrete and tile work

MC-Bauchemie provided a comprehensive solution for façade repair and finishing with new tiles. After removing the old tiles, the concrete surfaces were repaired using Nafufill KMH, a product that combines corrosion protection and a bonding agent, and the repair mortar Nafufill GM 2. This ensured a smooth, uniform substrate suitable for subsequent coating. Primer D11 was then applied as the primer before the new tiles were laid.

For most areas of the façade, the special mortar M 33 HP can be used both as a tile adhesive and a joint mortar offering an easy-to-apply and durable solution. In specific sections where separate tiling and grouting steps were required, the cementitious grout M 32 was applied. For the movement and separation joints, MC-Flex 490 MS, an flexible, MS-polymer-based sealant, was used to ensure a durable and secure joint finish.

Successful implementation and long-term protection of the façade

Thanks to the technical expertise, a comprehensive product portfolio and precise logistical planning, the Copan façade was successfully renovated. The combination of concrete repair, tiling and joint sealing by MC ensures the long-term safety and aesthetic appeal of the Copan building. The products used impressed with their outstanding performance, especially in terms of adhesion and strength.