Understanding Concrete Efflorescence How It Results In Unsightly Foundation Walls
At Permaseal, we respond to client questions about concrete issues daily. Just about the most frequent, and most puzzling for home owners, is exactly what they should do after they find layers of white-colored, flaky deposits on their basement walls. This particular powder is very common on cement surfaces -- specifically in basements and crawl spaces -- and it is often called efflorescence.
What Can Cause Efflorescence?
Cement is a porous material -- and it has been since the day it dried up. Because of this, it will accept moisture from the ground outdoors, progressively releasing some of this moisture into your home. This is one of the primary reasons that cellars are notoriously moist, humid spaces.
As this moisture moves through your cement, it brings a little portion of minerals from the soil outside in conjunction with it, combined with the lime in the concrete itself. When it evaporates into your cellar, it simply leaves these kinds of minerals behind. With time, they create the white, flaky dust that you find on your wall surfaces right now.
Cleaning Efflorescence from Basement Walls
There are several products currently available which are especially intended for getting rid of unsightly stains from concrete walls and flooring. One great way to get rid of efflorescence would be to rent a power washer from a local hardware store and to blend it with these kinds of chemicals to effectively blast efflorescence away from the concrete.
For a more economical solution, however, you could substitute these custom chemical substances using a solution of chlorine bleach. Coupled with a power washer, pressure washer, or just by applying with a scrub broom and some effort, you will be in the position to thoroughly clean off most efflorescence problems.
Phosphoric acid may also be used to not only get rid of efflorescence powder but also corrosion, grime, unsightly stains, and hard water deposits. Even so, phosphoric acid, as well as other acids, should be used very carefully and with great attention.
Shielding Your Basement from Efflorescence
At Permaseal, we suggest protecting your cement types of surface from efflorescence before an issue develops. Having said that, if you thoroughly clean already affected cement, protection can be applied after.
Our encouraged way to stop efflorescence is by sealing your cement walls with a cement sealer. The product works deep into the pores of your cement walls and floors to create a glass-like silicate bond in the cement.
This barrier halts the movement of moisture through the basement walls and floor surfaces, protecting your cellar from both efflorescence and also the water vapor transmission connected with basement humidity.
Concrete treatments can be applied as a spray, roller, paint brush, and also other ways, and it cures in 2-4 hours. It's safe for indoor use in addition to outdoor use, and can protect your basement in numerous ways.