Voergaard Courthouse

Voergaard Courthouse dating from 1578, which is part of the beautiful, old renaissance castle Voergaard Castle in Dronningborg, Northern Jutland, has undergone a comprehensive restoration. Weber acted as product supplier as well as advisor on the project. The comprehensive restoration work has been carried out in accordance with old Danish construction and craftsmanship traditions.

Map of Denmark

Denmark
Dronninglund
Contractor
JE BYG Murer & Entreprenør Aps

Issues and stakes

The courthouse was originally a district court, i.e. the city court of the time for the serfs, who lived on the land belonging to the castle. Here the judge and the clerk met with eight court witnesses in order to settle disputes and deliver verdicts in local cases. Today the courthouse is used for a number of activities such as medieval banquets and lectures in connection with guided tours of Voergaard Castle, etc.

The comprehensive restoration work has been carried out in accordance with old Danish construction and craftsmanship traditions. The courthouse was gently taken down in order to enable the establishment of new foundations. The next task was to reconstruct the courthouse using the old construction materials as far as possible and supplementing with new products from Weber among others.

Back in the 16th century the courthouse was built on top of filler dug up from the large moat, which is one of the widest in Denmark, from the nearby Voergaard Castle. And indeed, this unstable filler has throughout centuries contributed to large settlement damages (up to above 30 cm) to the courthouse. The large settlement damages were the very reason why the advisors chose to take down the courthouse in order to establish a new foundation.

Achievements

After the temporary dismounting, a load-compensating foundation consisting of Leca® lightweight aggregate was established. Above that, a load-distributing slab was cast in reinforced concrete. The advantage of this solution is to have a stable and robust construction that reduces the load on the ground and thus reduces the risk of future settlements.

The old granite stone (sylt stone) foundations were re-established on the new concrete slab. On top of this foundation consisting of special granite stone the old courthouse was realigned – and reconstructed. In the process, all bad construction materials were replaced by new, corresponding materials.

The newly renovated courthouse will for many years to come be a symbol of the local history events associated with the courthouse. It will also be a noble representative of Danish and local craftsmanship and building tradition of the best quality.

Weber has supplied the following materials for the construction:

•    As lightweight filling – Leca® 10-20
•    Partition wall foundations – Leca® blocks
•    Tamping and jointing between silt stone (base) and timber framing - JMS 842 Tix 0-4 mm, weber expanding tamping concrete (a winter version of weber expanding concrete for panel units class P).
•    Building of chimney - weber hydraulic masonry mortar KKh 20/80/475 0-6
•    Building of gable in timber framing - weber hydraulic masonry mortar KKh 20/80/475 0-6 mm made from weber slaked lime mortar and weber hydraulic mortar
•    Rendering of masonry - Weber Hydraulic Rendering Mortar KKh 35/65/500 0-2 mm made from weber slaked lime mortar and weber hydraulic lime mortar
•    Interior and exterior lime-washing – weber lime water, weber sand lime and weber lime (inside), weber lime water, weber dyed sand lime and weber dyed lime (outside)
•    For wet rooms – weber wet room system
•    Insulation of kitchen and disabled toilet - weber façade system Serpomin finished with weber.pas 461 white silicate render
•    Exterior surface treatment – weber dyed lime in a dark red shade