Ever since the palace was built in the 18th century, the weathering of the sandstone has been a problem and this has accelerated since the oil paint was removed from the stone during the renovation in the 1890s. In the spring of 2008, the Property Board started a comprehensive study on order to make a long-term plan for maintenance of the palace during the next 50 years. The study showed that the Gotlandic sandstone was in worse condition than expected. A number of stones were cracked and loose.