` Are efflorescence or unsightly stains marring your building? | WDP & Associates

Are efflorescence or unsightly stains marring your building?

Stains on buildings frequently mean two things – water infiltration and potential underlying problems.  Efflorescence is normally a white soluble deposit on the surfaces of masonry deposited during evaporation of salt-laden water.  The sources are usually sulfates in concrete or masonry that are brought to the surfaces by moisture migration and are often benign.  In other cases, permanent calcium carbonate deposits may begin developing on wall surfaces and are usually an indication of excessive water movement through the facade.  Other stains that may be indication of an underlying problem are red or brown stains, which could be corrosion of reinforcing or anchorages supporting the wall. WDP’s experience with these kind of problems has helped us develop sound solutions to assure the structures are not experiencing continued internal damage and to remove and eliminate or significantly reduce future stain development.