Waterproofing new buildings

Traditional waterproofing materials, such as all types of sheeting, as well as bituminous thick coatings, are reaching their limits with the abundance of new requirements described above. This is due to various reasons, such as the fact that they are difficult to adapt to the complex geometries at the transition from the window frame to the masonry, that they cannot be plastered over, or that a partial surface sealing that is required from an economic point of view cannot be realised. The list of possible challenges is long and, last but not least, there is often a lack of qualified personnel who can carry out this work to the required high standard.

But that is no reason to lose hope, because there is a new and highly innovative product solution that can solve or at least simplify many of the problems mentioned. Reactive or hybrid waterproofing systems consist of a cement-containing powder component and a dispersion-containing liquid component. Nowadays, they are referred to in the standards as flexible polymer-modified thick coatings (or FPDs).

These materials are nothing less than a revolution. After mixing, the cement consumes large amounts of water in the system and thus helps the dispersion to cross-link quickly and largely independent of weather conditions. The fully reacted sealant is crack-bridging and pressure-stable, adheres to almost all common substrates, can be plastered and painted over, is fault-tolerant and is therefore an excellent solution to all the problems described above.