Protecting buildings of historical interest
KEMPEROL 2K-PUR Waterproofing - Guildhall in London
KEMPEROL 2K-PUR Waterproofing - Gellert Hotel in Budapest
Wells in the UK
Waterproofing details using KEMPEROL 2K-PUR Waterproofing
The majority of damage to buildings is caused by moisture. Listed and culturally interesting buildings are at particular risk due to their age: moisture in the brickwork and concrete is the starting point for corrosion. As water infiltrates the building, the salts in the building materials absorb it and expand, thus promoting erosion; freezing moisture in the winter has the same effect. Since it is applied as a liquid, KEMPEROL ensures perfect waterproofing in tight spaces between balusters, domes and edges, and offers a sustainable, permanently elastic and crack bridging waterproofing solution for intricate connections - which are generally seen as weak points. The almost unlimited design options provided by quartz sand scattering enable visual continuity so that the overall appearance of the building is not changed.
View the presented product for waterproofing listed buildings here!
Refurbishing steps, Villa Konschewski in Berlin: A damp architectural gem
Rescuing a failed renovation attempt
Waterproofing problems had become apparent at the sandstone steps, which lead from a terrace at the rear of the villa to an additionally listed garden on the banks of the lake, and at the monumental fountain. Cracks in the substrate had led to moisture penetrating the building fabric. Waterproofing of the sandstone steps was essential to protect the rooms located beneath them. An initial refurbishment project, which had entailed the steps being completely removed and the laying of conventional waterproofing, had failed.
Use of a liquid applied waterproofing system was not only the safest but also the most cost-effective alternative. As both the building and the garden are listed, the choice of wearing course had to ensure the sandstone character of the steps was not adversely affected.
Solvent-free KEMPEROL, as the recommended and most cost-effective solution, met all the preservation order requirements
In 2004, master roofer Wolfgang Algie recommended using solvent-free KEMPEROL 2K-PUR, which could be applied to the sandstone steps in-situ. The steps and the terrace were initially sandblasted before the absorbent sandstone surface was pre-treated with solvent-free KEMPEROL EP Primer to seal the pores. Wolfgang Algie, together with his KEMPEROL specialist Rico Kröning, waterproofed the roughly 300 m² surface using permanently elastic and crack bridging KEMPEROL 2K-PUR. KEMPERDUR Deko with a light sand colour was subsequently applied as a heavy-duty wearing course and scattered with non-slip KEMPERDUR Natural Quartz 0.4 – 0.8 mm. The coating was sealed with KEMPERDUR Finish.
The system - proven in practice over many decades
- KEMPEROL EP Primer
- KEMPEROL 2K-PUR Waterproofing
- KEMPERDUR Deko
- KEMPERDUR Natural Quartz 0.4 – 0.8 mm
- KEMPERDUR Finish