Sistine Chapel ceiling particular pentimenti, highlights and shadows, and other detailing painted "a secco" – was lost in the removal of various accretions. Vasari Johann Wolfgang Goethe Waldemar Januszczak The art critic and television producer Waldemar Januszczak wrote that when the Sistine Chapel ceiling was recently cleaned, he "was able to persuade the man at the Vatican who was in charge of Japanese TV access to let me climb the scaffold while the cleaning was in progress." Gabriele Bartz and Eberhard König Pope John Paul II Sistine Chapel ceiling The Sistine Chapel ceiling, painted by Michelangelo between 1508 and 1512, is a cornerstone
Restoration of the Sistine Chapel frescoes have been predicted by previous restorers. One of the major dangers to the frescoes is automotive exhaust, and they are also vulnerable to the effects of the crowds of tourists that pass through the chapel every day, bringing with them heat, humidity, dust and bacteria (the latter of which can biodegrade paints and pigments). The clean plaster surfaces are more in danger from these destructive elements than they were when they were covered with a layer of smoky wax. Previously, the Sistine Chapel's only ventilation was from its windows in the upper level of the walls. To prevent exhaust fumes