3Rd National Congress of waterproofing held in Barcelona has concluded with the participation of 190 professionals and positive assessment by the Organization, the National Association of waterproofing ANI. According to the Manager of this entity Isidro Sans, we consider that there has been a good response, taking into account the current economic situation. In this context particularly value the efforts made by institutions, companies and professionals to engage in this 3rd Congress.With its third edition this Congress is consolidated as event of reference for the sector, to obtain and exchange information and knowledge with leading authorities, researchers, professionals and companies related to the world of the waterproofing. According to Isidro Sans, in the current situation this appointment becomes strategic forum to reflect on lines of action, resources and possible solutions. Among the speakers at the Conference have been several of the most important companies of the sector, representatives of ANI and their groupings, the Polytechnic University of Valencia and the Complutense University of Madrid, as well as entities such as AENOR, the Department of the environment, water, urban planning and housing of the Generalitat Valenciana, the Council General of schools of agricultural engineers of Spain and the Spanish Committee of large dams (SPANCOLD).Also had a prominent presence Central Laboratory of structures and materials (CEDEX) as well as the Ministry of the environment, rural and marine, as direct contributors to the Spanish Association of waterproofing in the Organization of the Congress. The project goals among the high-grade scientific and technical content. According to this San Isidro was the obsession of the Organizing Committee and Congressmen have expressed us satisfaction through numerous messages of greeting received in ANI and people who formed part of the Technical Committee.In total, the 3rd National Congress of waterproofing have taught orally 40 papers from a total of 60 papers on various subjects within the field of building, civil engineering and rafts.