Art preservation is tricky even under ideal circumstances, which generally involve close controls for light, temperature, humidity and other hazards. Eliminate those and you have some idea of the challenge that street-mural preservation faces. The only surviving exterior work in the U.S. by the renowned Mexican muralist David Alfaro Siqueiros, Los Angeles’s “América Tropical” (1932), is only now receiving a roof. Ironically, its longevity is due to a paint-over that preserved it from the ravages of nature. Most murals, in a world of unfriendly ordinances and inevitable shifts in the urban landscape, are not so fortunate. Happily, a number of national and local organizations have recently mobilized to ensure that the preservation of murals need not be any more difficult than rain, snow and sun already render it.
The organization Heritage Preservation launched a “Rescue Public Murals” initiative in December 2006, using funding from the Getty Conservation Institute and the National Endowment for the Arts. It first conducted a national assessment, paying particular attention, according to project director Kristen Laise, to “cities which had a long history of mural creation or of issues with preservation.” Then it selected for examination 16 murals in locations ranging from a commuter rail underpass to an abandoned church, and depicting topics from the end of the Marcos dictatorship to the laborers of San Francisco’s Chinatown.
Wall Street Journal