Sistine Chapel ceiling restoration began on 7 November 1984. The restoration complete, the chapel was re-opened to the public on 8 April 1994. The part of the restoration in the Sistine Chapel that has caused the most concern is the ceiling, painted by Michelangelo. The emergence of the brightly coloured Ancestors of Christ from the gloom sparked a reaction of fear that the processes being employed in the cleaning were too severe and removed the original intent of the artist. The problem lies in the analysis and understanding of the techniques utilised by Michelangelo, and the technical response of the restorers to
Sistine Chapel ceiling and passionate Christian beliefs. The Sistine Chapel is 40.9 metres long and 14 metres wide. The ceiling rises to 13.4 metres above the main floor of the chapel. The vault is of quite a complex design and it is unlikely that it was originally intended to have such elaborate decoration. Pier Matteo d'Amelia provided a plan for its decoration with the architectural elements picked out and the ceiling painted blue and dotted with gold stars, similar to that of the Arena Chapel decorated by Giotto at Padua. The chapel walls have three horizontal tiers with six windows in the upper