Client: Protestant Congregation of Utrecht
Background: For centuries a complex with a Romanesque cathedral stood on the site of the Roman Castellum Traiectum. In 1254 the construction of a Gothic cathedral was begun. Between 1254 and 1300 the ambulatory and the south choir aisle were built. The north choir aisle, tower and choir lantern were built between 1320 and 1400. The transept was built between 1440 and 1479. The nave was worked on from 1485 until construction came to a standstill in 1517 because of lack of money. During the iconoclasm of 7 March 1850 the church was vandalized. Traces are still visible today. The church has been in use by the Protestant congregation since 1581.
In 1674 a storm caused the collapse of the nave. As a result, the tower is still separated from the rest of the church. For about a century and a half the debris remained exactly on the same location. The cathedral now consists of the north transept, the crossing, the south transept and the choir.
Utrecht Cathedral is one of the earliest examples of Gothic architecture in The Netherlands. Therefore it is one of the foremost listed Gothic buildings.
Task: The Protestant congregation wants to know whether it is possible to save energy in Utrecht cathedral. If so then what is the way to do this.
Approach: The investigation is carried out step by step. First opportunities for energy saving are identified. In the next stage the identified opportunities can be dealt with thoroughly. By doing so the costs of the project are well controlled.
Results: The report with the results of the first stage has been delivered.