Our thermal insulation plaster systems are the result of years of intensive research and continuous development. They are characterised by their outstanding effectiveness and exceptional durability, which have been impressively proven in numerous studies and practical tests.
Our products are regularly tested and optimised in close cooperation with leading research institutes such as the Fraunhofer Institute, the IGS Sachverständigenbüro and various universities. These partnerships enable us to keep our finger on the pulse of the latest scientific findings and develop innovative solutions that meet the demanding requirements of modern construction projects.
Through these intensive collaborations, we subject our thermal insulation plaster systems to rigorous scientific testing. Every aspect - from material composition and processing quality to long-term durability - is carefully analysed and validated. This comprehensive test procedure guarantees that we can offer our customers products of the highest quality and reliability.
The research project on the effectiveness of the aerogel high-performance insulating render HASIT Fixit 222 focuses on investigating the effectiveness and durability of the render system in environments exposed to high levels of moisture and salt. In 2018, test areas were applied to the basement walls of Trausnitz Castle in Landshut to test the performance of this innovative insulating render under extreme conditions. The castle, whose walls are heavily soaked and exposed to salt, offers ideal conditions for a scientifically sound long-term study. We would like to thank the Bavarian Castles and Palaces Administration for making the rooms available.
The long-term study was carefully conducted in collaboration with the Institute for Building Analysis and Refurbishment Planning (IGS). The IGS, a renowned organisation with many years of experience in the preservation of listed buildings and building physics, monitored the test areas over a period of five years.
The tests confirmed the outstanding properties of the aerogel insulating plaster. Despite extremely high moisture and salt loads, no damage such as detachment or surface destruction occurred. The plaster demonstrated impressive stability by storing salts without damage and at the same time maintaining effective thermal insulation.
Moisture and salt contamination
The material samples taken over the years showed high moisture levels in the plaster, which can be attributed to the extremely damp walls of the castle. However, the aerogel insulating plaster was able to absorb these loads without any problems and continuously remove moisture to the surface via capillary action without suffering any structural damage.
The salt load of the plaster layers was also determined using ion chromatographic analysis methods. The results showed an even distribution of harmful salts in the plaster layers without causing any damage.
Conclusion of the research project
The long-term study clearly shows that the HASIT Fixit 222 aerogel insulating render is an innovative and reliable solution for masonry exposed to moisture and salt. It not only offers excellent thermal insulation properties, but also extreme resistance to building-damaging influences. This makes it ideal for use in demanding refurbishment projects, particularly in listed buildings.
Highly energy-efficient interior wall heating/insulation hybrid systems (H-WIHS)
In collaboration with the Fraunhofer Institute for Building Physics (IBP), we are investigating highly innovative solutions for the energy-efficient retrofitting of buildings. The H-WIHS under test - aerogel insulating plaster and a space-saving wall heating system - combines first-class insulation performance with the integration of modern wall heating systems and offers a pioneering solution for existing buildings.
Key objectives of the project
By combining interior insulation and wall heating, the H-WIHS unites the strengths of both systems. The aim is to optimise the potential of the technologies. For example, the presumed positive effects of wall heating on the moisture balance of the insulation system are to be scientifically tested. This will make it possible to install the system without the need for time-consuming moisture analyses - a significant simplification in practice.
The project is being carried out as part of a research contract for the Federal Ministry for Economic Affairs and Climate Protection and aims to sustainably increase energy efficiency and living comfort in existing buildings.
Research project Fachwerk 2.0: Sustainable restoration of half-timbered buildings
In cooperation with the Rhein-Main University of Applied Sciences and Brandenburg University, our highly efficient perlite insulating render HASIT 242 CALCECLIMA® THERMO is being scrutinised as part of the Fachwerk 2.0 research project. The aim of the project is to develop resource-saving and highly efficient wall systems that enable the energy-efficient refurbishment of these historic buildings.
At the Hessenpark Open-Air Museum, various thermal insulation measures are being tested on test buildings for their long-term durability and performance. The knowledge gained is intended to sustainably improve the practice of renovating half-timbered houses and offer sustainable solutions for everyday construction.
With this project, we are contributing to the preservation of historic buildings and at the same time creating ways to fulfil energy requirements and conserve valuable resources.
Our products are regularly tested by independent institutes. The Fraunhofer Institute, the German Institute for Building Technology (DIBt) and the Institut für Bauen und Umwelt e.V. have confirmed the effectiveness and performance of our thermal insulation plaster system.
Thanks to intensive collaboration with scientific institutions and experts, our thermal insulation plasters offer a proven solution for demanding building projects. They combine innovation, sustainability and efficiency - scientifically sound and proven in practice.
Find out more in an interview with Dipl.-Ing. Rolf Kaiser, Managing Director of IGS, or visit our reference page to discover exciting projects.
