Waterproofing Applications in Masonry Structures: A Case Study in Residential Buildings in the North of Manaus, Brazil

This study analyzed the effectiveness of rigid and flexible waterproofing agents in the treatment of pathologies caused by humidity and infiltration in masonry residences in the northern region of Manaus (AM), Brazil. Technical visits were carried out in 50 residences, with experimental application of the products in 6 selected houses. The results demonstrated that the adequate use of waterproofing agents, such as modified mortars, asphalt blankets and liquid rubber, prevented infiltration in 100% of the treated cases. The lack of technical knowledge and planning were identified as critical factors for the emergence of pathologies. It is concluded that waterproofing is an essential investment to ensure durability, safety and habitability in residential buildings, emphasizing the need for specific projects and professional training.