Being familiar with Concrete Efflorescence How It Results In Unsightly Foundation Walls
At Permaseal, we respond to client questions about concrete problems every single day. One of the most frequent, and most perplexing for property owners, is exactly what they should do once they find layers of white-colored, flaky deposits on their cellar wall surfaces. This kind of powder is very common on concrete surfaces -- specifically in basements and crawl spaces -- and it is called efflorescence.
What Causes Efflorescence?
Concrete is a porous material -- and it has been since the day it dried up. As a result, it is going to take moisture from the ground outdoors, slowly releasing some of this moisture into your dwelling. This is one of the primary reasons that basements are infamously moist, humid spaces.
As this moisture moves through your concrete, it brings a small portion of minerals from the earth outside the house along with it, combined with the lime in the cement itself. When it evaporates into your cellar, it leaves these types of minerals behind. Over time, they create the white, flaky dust that you see on your wall surfaces right now.
Cleaning Efflorescence from Basement Walls
There are many products currently available which are especially intended for removing unsightly stains from cement wall surfaces and flooring. One good way to remove efflorescence will be to rent a pressure washer from a nearby hardware store and to blend it with these chemicals to effectively blast efflorescence away from the cement.
For a less expensive solution, however, you could substitute these custom made chemical substances with a solution of chlorine bleach. Combined with a power washer, pressure washer, or just by applying with a scrub brush and some effort, you ought to be competent to clean off most efflorescence issues.
Phosphoric acid can also be used not only to get rid of efflorescence powder but also corrosion, grime, stains, and hard water build up. However, phosphoric acid, as well as other acids, should be used carefully and with great care.
Shielding Your Basement from Efflorescence
At Permaseal, we suggest protecting your concrete areas from efflorescence before an issue arises. However, if you thoroughly clean already affected concrete, protection can be applied after.
Our recommended way to prevent efflorescence is by sealing your cement walls with a cement sealer. The product works deep into the pores of your cement walls and flooring to create a glass-like silicate bond in the concrete.
This barrier puts a stop to the movement of moisture through the basement walls and flooring surfaces, protecting your cellar from both efflorescence and the water vapor transmission connected with basement humidity.
Concrete treatments can be applied as a spray, roller, paint brush, or any other ways, and it cures in 2-4 hrs. It's harmless for inside use as well as outdoor use, and can protect your basement in numerous ways.