The architectural monument
The ice cellar – especially the associated staircases – are in poor condition today. The aim of the planned construction measure is therefore to secure and repair the building and to restore its appearance as it was when it was built, while preserving its substance and taking into account the concerns of monument preservation.
The ice cellar is part of a group of structural facilities according to. § 3 par. 3 of the Lower Saxony Monument Protection Act (NDSchG). Work will begin in late summer 2023. The measure is supported by state funds and by the VGH Foundation. The ice cellar was presented to the interested public on the “Open Monument Day” in September 2023.
The natural stone exterior walls show different damage patterns. For this reason, particularly gentle cleaning is provided for the sensitive factory stone elements. In addition, the grouting has flaws, as well as improper previous repairs. All joints are therefore sifted and repaired accordingly with a color-matching trass mortar. Spalls and imperfections in the natural stone facade are treated by inserting matching veneers or stone replacement applications in such a way that an orderly water flow is restored. In addition, the repair of visually and technically defective repairs to the exposed masonry is planned.
On the basis of historical illustrations it can be proved that the door of the construction period was coffered and opened to the outside. Reconstruction is therefore planned to restore the overall appearance of the building.
In the interior, the masonry of the barrel vault has a badly deteriorated mud. Therefore, cleaning and application of a new lime slurry is planned.
Undated photos show the viewing platform in the meantime completely without parapet posts. It can therefore be assumed that these were so badly damaged that a complete replacement was carried out, with three posts then being made much larger. To strengthen a harmonious overall impression, it is planned to replace these three younger posts with new and more proportionally fitting posts, made of natural stone of appropriate quality and color.
In particular, the stairways associated with the ice cellar and its use as a viewing platform have settled and deformed considerably over the years. For the urgently required replacement of the three flights of stairs, first a mapping and subsequently the substance-preserving removal is planned.
For the production of a stable substructure, a larger soil excavation, in the area of the step installations, will be necessary. Finally, the laterally stored and cleaned steps can be relaid.