Editing Fresco (section)

==Conservation of frescoes==
{{main|Conservation and restoration of frescos}}
The climate and environment of [[Venice]] has proved to be a problem for frescoes and other works of art in the city for centuries. The city is built on a lagoon in northern Italy. The humidity and the rise of water over the centuries have created a phenomenon known as rising damp. As the lagoon water rises and seeps into the foundation of a building, the water is absorbed and rises up through the walls often causing damage to frescoes. Venetians have become quite adept in the conservation methods of frescoes. The mold [[aspergillus versicolor]] can grow after flooding, to consume nutrients from frescoes.<ref name= Bennettjw>{{cite book |author= Bennett JW|year=2010|chapter=An Overview of the Genus ''Aspergillus''|chapter-url=http://www.open-access-biology.com/aspergillus/aspergillusch1.pdf |archive-url=https://web.archive.org/web/20110409144644/http://www.open-access-biology.com/aspergillus/aspergillusch1.pdf |archive-date=2011-04-09 |url-status=live|title=''Aspergillus'': Molecular Biology and Genomics|publisher=Caister Academic Press|isbn= 978-1-904455-53-0}}</ref><ref>{{cite journal|author=Orio Ciferri|title=Microbial Degradation of Paintings|journal=Applied and Environmental Microbiology|date=March 1999|volume=65|pages=879–885|pmc=91117|pmid=10049836|issue=3|doi=10.1128/AEM.65.3.879-885.1999|bibcode=1999ApEnM..65..879C}}</ref>

The following is the process that was used when rescuing frescoes in [[La Fenice]], a Venetian opera house, but the same process can be used for similarly damaged frescoes. First, a protection and support bandage of cotton gauze and polyvinyl alcohol is applied. Difficult sections are removed with soft brushes and localized vacuuming. The other areas that are easier to remove (because they had been damaged by less water) are removed with a paper pulp compress saturated with bicarbonate of ammonia solutions and removed with deionized water. These sections are strengthened and reattached then cleansed with base exchange resin compresses and the wall and pictorial layer were strengthened with barium hydrate. The cracks and detachments are stopped with lime putty and injected with an epoxy resin loaded with micronized silica.<ref>Ciacci, Leonardo., ed, La Fenice Reconstructed 1996&ndash;2003: a building site in the city,
(Venezia: Marsilio, 2003),118.</ref>