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Haus zum Breiten Herd (House of the Broad Hearth), Erfurt, Germany

Haus zum Breiten Herd (House of the Broad Hearth), Erfurt, Germany

Erfurt Germany Facade restoration Render Natural stone Renaissance building RM N Color LA KSE H Facade Repair

In 1584, the Haus zum Breiten Herd was built by order of the council master and town bailiff Heinrich von Denstedt. Today it forms an impressive house in the fish market. Particularly worth seeing are the many decorative elements on the valuable Renaissance building, especially the five-senses - See - Hear - Smell - Taste - Feel). The Haus zum Breiten Herd and the adjacent Gasthof zum Stötzel have been owned by the Erfurt Chamber of Crafts since 1929.
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Reference identification data
Construction project:
Facade restoration / render Facade restoration / natural stone
Building type:
Historically protected / historically valuable buildings
Short description
The microbiological load of the building bricks and the high mobility of the stored hygroscopic magnesium sulphates required adequate moisture protection in the area of the paint setting systems. Due to the high salt loads, a hydrophobic impregnation was ruled out. In order to minimize the water ingress via the facade surface and the associated damage processes, a silicone resin paint was selected.
Client:
Handwerkskammer Erfurt
Site address:
99084 Erfurt
Can the work be viewed?
No

Sample of products or systems used

  • RM
    RM

    Art. No. 0750

  • Color LA
    Color LA

    Art. No. 6400

  • Art. No. 0646

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Further references

The structure showed cracks in some places, for which there were different causes. Improved statics and higher load capacity were achieved by stiffening the structures, frictional connection of the disturbed foundation and decoupling the components gate, passage hall and gate houses components. Particularly on the western side, intense blackening of the rock surface had built up, which was strongly interlocked with the ground. The deposits were composed of a mixture of soot and plaster. The cleaning process carried out in 1990 with the help of water could only result in a superficial cleaning. In 2002, the newly developed method of particle beam cleaning and cleaning by laser made it possible to remove soot and plaster without destroying the original surface.
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On the façade surfaces of Kaispeicher A, there was a lot of efflorescence and lime aging, both signs of penetrating moisture. The damage patterns indicated a lack of frost resistance as well as no protection against driving rain. The listed façade required extensive frost and moisture protection, but was not allowed to undergo any visual changes.
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