Understanding Concrete Efflorescence How It Leads To Ugly Foundation Walls
At Permaseal, we answer customer questions on concrete issues on a daily basis. One of the most common, and most perplexing for property owners, is exactly what they ought to do after they find layers of white, flaky deposits on their basement wall surfaces. This powder is very popular on concrete types of surface -- specifically in cellars and crawl spaces -- and it is often called efflorescence.
What Causes Efflorescence?
Concrete is a porous material -- and it has been since the day it dried. For this reason, it's going to accept moisture from the ground outdoors, gradually releasing some of this moisture into your house. This really is most significant reasons that cellars are infamously damp, humid spaces.
As this moisture moves through your concrete, it brings a small portion of minerals from the soil outside in conjunction with it, along with the lime in the cement itself. When it evaporates into your basement, it leaves these minerals behind. With time, they create the white, flaky powder that you observe on your wall surfaces today.
Cleaning up Efflorescence from Basement Walls
There are several products currently available which are specifically aimed at getting rid of unsightly stains from cement walls and floors. One good way to get rid of efflorescence should be to rent a power washer from a local hardware store and to blend it with these chemicals to successfully blast efflorescence off of the cement.
For a less expensive solution, however, you could substitute these customized chemical substances with a solution of bleach. Coupled with a power washer, pressure washer, or just by applying with a scrub broom and some hard work, you will be able to thoroughly clean off most efflorescence problems.
Phosphoric acid can also be used to not only eliminate efflorescence powder but also corrosion, grime, stains, and hard water deposits. Even so, phosphoric acid, along with other chemicals, must be used cautiously and with great attention.
Protecting Your Basement from Efflorescence
At Permaseal, we suggest protecting your concrete types of surface from efflorescence before a problem arises. However, if you thoroughly clean already affected cement, protection can be applied after.
Our recommended way to stop efflorescence is by sealing your concrete walls with a concrete sealer. The product works deep into 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 flooring surfaces, protecting your cellar from both efflorescence and also the water vapor transmission linked to basement humidity.
Concrete treatments can be applied as a spray, roller, paint brush, and also other ways, and it dries out in 2-4 hrs. It's harmless for inside use in addition to external use, and may protect your basement in a number of ways.