The Desalination of Porous Building Materials project team at May 2006 meeting in Venice. Photo: Eloisa Di Sipio

Example of salt damage to masonry in Venice. Photo: Eric Doehne

Desalination project team meeting at the Laboratoire de Recherche des Monuments Historiques in Paris. Photo: Eric Doehne

Salt-damaged bricks at Madame John's Legacy. Photo: Giacomo Chiari

Madame John's Legacy, New Orleans, October 2007. This is the US case study site selected for poultice testing. Photo: Eric Doehne

Salt distribution being mapped with an UV lamp. Photo: Eric Doehne

Eric Doehne (GCI) and local conservator Heather Knight sampling salts from a wall at Madame Johns Legacy. Photo: Veronique Verges-Belmin

Giacomo Chiari (GCI) and Tom Roby (GCI) applying test poultices at Madame Johns Legacy. Photo: Eric Doehne

Documentation of test poultices. Photo: Veronique Verges-Belmin

Sampling of test poultices at Madame John's. Photo: Heather Knight