“Old iron – new color”

Building design

cast-iron railing system with the "rust protection mine

Tradition and modernity met at the conference in the Thierhaupten building archive The conference topic “Old iron – new color” on February 19, 2016 also gets to the heart of the matter in the extended subtitle “Coating systems for historical wrought ironwork”: How do historical wrought iron and new paint coatings fit together when a color-forming repeat protection is necessary after the removal of rusty old coatings? Advertorial […]

Tradition and modernity met at the conference in the Thierhaupten building archive

The conference topic “Old iron – new color” on February 19, 2016 also sums it up in the extended subtitle “Coating systems for historical wrought ironwork”: How do historical wrought iron and new paint coatings fit together when a colorful re-protection is necessary after the removal of rusted old coatings?

The answer was clearest in the summary by Dipl.-Rest. Jens Wagner from the restoration workshops of the Bavarian State Office for Monument Preservation (BLfD): the impulses and lectures should help to replace the “generally anthracite gray embarrassment solutions” with targeted color reconstruction according to findings with normative coating systems.

This was also the aim of the first presentation on the small 1 x 1 of corrosion protection according to DIN EN ISO 12944, “Corrosion protection of steel structures using coating systems”, in order to be able to carry out reliable corrosion protection planning. As Prof. Bernhard Mai from Erfurt clearly demonstrated, when selecting the type of coating, local influencing factors such as climate, moisture duration and air pollutants must be taken into account in order to achieve a desired protection period of over 15 years, for example.

He presented the restoration measures on the gate of the camp entrance to the Buchenwald Memorial with the red-painted inscription “JEDEM DAS SEINE” in the white-painted grid field (paint layer findings of the original equipment). Here, the presentation images in particular suddenly had a delayed emotional effect that touched everyone in the audience.

In the further course of the event, the factor of residual rust played a particularly important role, as completely metallic, newly blasted iron surfaces are not always desired or cannot be realized. After all, the general principle of metal conservation is that traces of manufacture, use and transmission should be preserved and remain recognizable.

The contribution by metal designer Ingo Fichtner provided helpful insights into the overall problem of residual rust treatment – particularly with regard to the application of rust stoppers and rust sealers in narrow gaps, such as under the frets of wrought iron fence and lattice bars. Air-drying, low-viscosity natural oils with a good penetrating effect such as Owatrol have proven their worth here. To be on the safe side, the actual penetration depth and the preservation effect should be checked by opening one or two bundles.

Dipl.-Rest. Mandy Reimann presented the results of a ZIM cooperation project on the topic of “Development of innovative corrosion protection systems taking into account the special requirements of monument preservation”. In this, as in other presentations, the focus was on the compatibility of residual rust on manually derusted surfaces and the performance comparison of modern thick-film systems with lead-primed coatings. According to the available results, the lead-containing primers can be replaced without major disadvantages, but such advanced industrial systems have so far hardly been used in restoration practice on finely structured to filigree forged iron designs. This would also mean that the surface features to be preserved would no longer be recognizable.

In contrast, other presentations emphasized the use of classic linseed oil paints as an anti-corrosion coating. In the case of the church painter Stefan Enzinger, who gave the presentation, this even went hand in hand with his own production of the tried and tested natural paints. The three- and four-layer coating systems presented were also convincing when applied to hand-rusted surfaces, as the first coat is applied with a lead soap primer produced in-house. The result shows an authentic harmony of the materials in the context of the historic paint substrate and the original decorative rust protection.

In summary, tradition and modernity have come together in the materials and conservation methods presented. There is an emerging trend for newly developed coating materials to be used in the preservation of historical monuments alongside historical ones. Their user-friendliness, long durability and safe service life are particularly welcome. The new materiality is also gaining increasing acceptance in terms of the further development of monument conservation work with contemporary materials.

In view of the great interest and the large number of registrations, the BLfD’s building archive is fully living up to its role as the Bavarian training and advisory center for monument preservation – especially if the event is repeated again in 2016 due to the strong demand.

On June 14, 2016, 4:30 to 6:00 pm, Dipl.-Chem. Wolfgang Conrad will hold a RESTAURO webinar on the topic of “Iron under monument protection”.

POTREBBE INTERESSARTI ANCHE
Wartburg Castle has been a UNESCO World Heritage Site since 1999. Photo: A.Savin - Own work, FAL, via: Wikimedia Commons

Wartburg Castle has been a UNESCO World Heritage Site since 1999.
Photo: A.Savin - Own work, FAL, via: Wikimedia Commons

Rising high above the Thuringian countryside, Wartburg Castle is one of the most representative cultural monuments in Central Europe. Since its inscription on the UNESCO World Heritage List, it has been one of the most outstanding testimonies to European history. Architecture, political events and literary tradition intertwine here to create a multi-layered cultural narrative.

The history of Wartburg Castle begins in the 11th century, when it was founded as the residence of the Ludovingian landgraves and from then on shaped the political power in the region. Even in the High Middle Ages, the palace, enthroned on a steep limestone cliff, was considered a masterpiece of late Romanesque architecture, whose design and ornamentation make it one of the most important secular buildings north of the Alps. This architectural heritage is evidence of the feudal character of Central Europe and forms one of the foundations for the later recognition as a World Heritage Site.
Wartburg Castle’s role as a center of courtly culture and memory grows through literary traditions such as the so-called Singers’ War, which was passed down in Middle High German poetry. At the same time, historical figures such as St. Elisabeth of Thuringia, whose life and work are closely linked to the castle, are becoming firmly established in the culture of remembrance. Even if some legends were mythically exaggerated, they still reflect the early symbolic value of the place in the cultural imagination.

The architectural appearance of Wartburg Castle is the result of a long development that underwent a profound transformation, particularly in the 19th century. After centuries of changing use and partial decay, the emerging Romantic period initiated a comprehensive restoration that was based less on a historically accurate reconstruction than on an idealized image of the Middle Ages. Under this premise, the Elisabeth Bower and richly decorated interiors were created, which today form an integral part of the complex.
From an art historical perspective, this combination of original 12th century parts and historicist additions is ambivalent: on the one hand, the preserved Romanesque building elements document the civil architecture of its time; on the other hand, the 19th century additions reflect the monument preservation and historical myths of the time. It was precisely this mixture of archaeological and symbolic authenticity that was taken into account in the UNESCO nomination, with the term “authenticity” not only referring to material originality, but also including the ideas and meanings anchored in the collective consciousness.

Wartburg Castle is more than just a stone relic – it is a place of profound cultural connections. Martin Luther’s stay here during his exile from 1521 to 1522, when he wrote the German translation of the New Testament from Greek in the so-called “Junker Jörg” room, was particularly influential. This achievement in the history of language had far-reaching consequences for theology, education and the German literary language as a whole and had a lasting impact on the cultural significance of the castle.
In the 19th and early 20th centuries, Wartburg Castle also became a symbol of national identity and political integration. Events such as the Wartburg celebrations of the German student movement became part of the collective memory, as did literary and musical adaptations in works by Richard Wagner, which romanticized the image of the medieval castle courtyard. Wartburg Castle also remains a living point of reference in cultural memory as an inspirational place for artistic debate.
In 1999, the site was inscribed on the UNESCO World Heritage List on the basis of two criteria: Firstly, as an “outstanding monument of the era of feudalism in Central Europe” (criterion (iii)) and secondly, as a site “rich in cultural references”, particularly emphasizing its connection to the history of the Reformation and the German unification movement (criterion (vi)). These criteria reflect the exceptional universal value that Wartburg Castle has beyond the borders of Thuringia. The castle not only documents the architecture and living environment of high medieval feudalism, but also exemplifies the profound influence of historical events and cultural upheavals on European civilization. The UNESCO designation therefore not only recognizes the material substance of the complex, but above all its role as a place of remembrance that inspires generations of visitors to reflect and research. The integrative perception of architecture, history and cultural impact makes Wartburg Castle a unique medium for communicating the past and present.
At a time when cultural heritage is increasingly being discussed in a global context, Wartburg Castle highlights the importance of historical sites as mediators of identity, memory and transnational understanding. Its place on the World Heritage List helps to secure this significance in the long term and make it tangible for future generations.

Safety – The Baumeister in April 2025 is here!

Building design

Will this makeshift barrier around the bronze statue actually help at night? Not sure ... Cover photo: Rona Bar & Ofen Avshalom / Connected Archives

“Security” in architecture means more than just barriers and alarm systems – there is much more to it than that. This issue sheds light on how buildings can provide protection – be it against the forces of nature, theft or social conflict. Your planners do not see security as a restriction, but as a design potential. In order to avoid repellent gestures, they often find security-relevant solutions in the building form. […]

“Security” in architecture means more than just barriers and alarm systems – there is much more to it than that. This issue sheds light on how buildings can provide protection – be it against the forces of nature, theft or social conflict. Your planners do not see security as a restriction, but as a design potential. To avoid repellent gestures, they often find security-related solutions in the building design.

Security – a word that is supposed to reassure and yet often has the opposite effect. We all long for it, but we also know that there is no such thing as absolute security. A building can protect against rain and cold, a city can be well planned – but can architecture really guarantee that we feel safe? Or does it only create an illusion? And in the end, isn’t the feeling of safety just as important as the safety itself?

The last year alone has shown us once again how fragile our built and lived environment is. Collapsing bridges, poorly maintained high-rise buildings and natural disasters that destroy entire neighborhoods. At the same time, fear of attacks in public spaces is growing, and in many cities measures are being taken to turn urban squares and buildings into high-security zones. But do we really need to turn our built reality into bastions of concrete and cameras in order to feel safe? Or is there a more intelligent answer to the question of protection?

Architecture cannot guarantee absolute security, but it can create trust. It can shape spaces that convey a sense of security without restricting freedom. Architecture has the unique potential to master precisely this balancing act. From fire and earthquake-proof school buildings to carefully considered designs for public spaces: Security architecture must not rely solely on control and barriers, but must enable trust and freedom. A clever choice of materials, for example, can preserve a feeling of openness without sacrificing protection. Ultimately, it must not be about sealing things off, but about proactive design.

Security must not become an aesthetic of mistrust. Walls, bars, barriers and confined spaces may minimize risks, but they also separate us from each other. All too often, they stifle life. The most popular place, both inside and out, is often where people meet, where light and transparency dominate, where architecture acts as a social bond and thus serves a greater purpose.

This issue is an invitation to rethink security. We show projects that prove that protection does not have to mean control, but trust. That architecture not only erects walls, but also builds bridges – between security and freedom, between control and openness. Because true security is not created by fear, but by clever (re)planning, by courageous design and by a society that does not close itself off, but proactively takes the helm. Enjoy reading!

Yours sincerely,
Tobias Hager

Editor-in-Chief
t.hager@georg-media.de

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In March, our Baumeister issue was all about building on existing buildings and conversion. Read more about it here!