Understanding Concrete Efflorescence How It Results In Ugly Foundation Walls
At Permaseal, we all answer client questions on concrete issues each day. Probably the most frequent, and most perplexing for property owners, is exactly what they ought to do once they find layers of white, flaky deposits on their basement wall surfaces. This particular powder is very popular on concrete types of surface -- especially in cellars and crawl spaces -- and is generally known as efflorescence.
What Can Cause Efflorescence?
Concrete is a porous material -- and it has been since the day it dried up. As a result, it's going to take moisture from the dirt outside, progressively releasing some of this moisture into your house. This really is one of the primary reasons that basements are infamously moist, humid spaces.
As this moisture passes through your concrete, it brings a little portion of minerals from the soil outside in conjunction with it, along with the lime in the cement itself. When it evaporates into your cellar, it leaves these kinds of minerals behind. Over time, they create the white-colored, flaky powder that you notice on your walls today.
Cleaning Efflorescence from Basement Walls
There are many products on the market today that are specifically geared towards removing stains from concrete wall surfaces and floors. One great way to remove efflorescence would be to rent a pressure washer from a nearby home improvement store and to combine it with these types of chemicals to effectively blast efflorescence away from the cement.
For a less expensive solution, however, you may substitute these customized chemical substances using a solution of chlorine bleach. Coupled with a power washer, pressure washer, or simply by applying with a scrub brush and some hard work, you will be able to clean off the majority of efflorescence issues.
Phosphoric acid may also be used to not only eliminate efflorescence powder but also rust, grime, stains, and hard water deposits. Even so, phosphoric acid, along with other acids, must be used very carefully and with great attention.
Shielding Your Basement from Efflorescence
At Permaseal, we suggest protecting your concrete floors from efflorescence before an issue develops. However, if you thoroughly clean already affected cement, protection can be applied afterward.
Our suggested way to avoid efflorescence is by sealing your cement walls with a concrete sealer. The product works deep into the pores of your concrete walls and floor surfaces to create a glass-like silicate bond in the cement.
This barrier puts a stop to the movement of moisture through the basement walls and floors, protecting your basement from both efflorescence and also the water vapor transmission associated 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 is safe for indoor use in addition to outdoor usage, and can protect your basement in many ways.