Understanding Concrete Efflorescence How It Leads To Ugly Foundation Walls
At Permaseal, we all answer customer queries about concrete problems daily. Probably the most popular, and most puzzling for homeowners, is exactly what they ought to do when they find layers of white-colored, flaky residue on their basement walls. This kind of powder is very popular on concrete types of surface -- specifically in cellars and crawl spaces -- and is often known as efflorescence.
What May Cause Efflorescence?
Concrete is a porous material -- and it has been since the day it dried. Because of this, it'll accept moisture from the earth outdoors, slowly releasing some of this moisture into your home. This really is one of the primary reasons that basements are notoriously damp, humid spaces.
As this moisture moves through your concrete, it brings a little portion of minerals from the soil outdoors in conjunction with it, along with the lime in the cement itself. When it evaporates in your basement, it leaves these minerals behind. Over time, they create the white, flaky powder that you see on your walls today.
Washing Efflorescence from Basement Walls
There are several products currently available that are specifically aimed at getting rid of stains from concrete wall surfaces and flooring. One great way to get rid of efflorescence is to rent a power washer from a nearby home improvement store and to combine it with these kinds of chemicals to effectively blast efflorescence off of the cement.
For a more economical solution, however, you could substitute these custom chemicals using a solution of bleach. Coupled with a power washer, pressure washer, or simply by applying with a scrub brush and some effort, you ought to be in the position to thoroughly clean off the majority of efflorescence issues.
Phosphoric acid may also be used to not only eliminate efflorescence powder but also rust, grime, unsightly stains, and hard water deposits. However, phosphoric acid, along with other chemicals, should be used very carefully and with great attention.
Shielding Your Basement from Efflorescence
At Permaseal, we suggest protecting your concrete types of surface from efflorescence before a problem arises. Having said that, if you clean already damaged concrete, protection can be applied afterward.
Our encouraged way to prevent efflorescence is by sealing your concrete walls with a concrete sealer. The product works deep in the pores of your concrete walls and floors to create a glass-like silicate bond in the concrete.
This barrier prevents the movement of moisture through the basement walls and floor surfaces, protecting your cellar from both efflorescence and the water vapor transmission linked to basement moisture.
Concrete treatments can be applied as a spray, roller, paint brush, and also other ways, and it dries out in 2-4 hrs. It is harmless for inside use as well as outdoor use, and can protect your basement in many ways.