Concrete is poured within excess of water typically called water of convenience that does not bind with the cement particles. This excess water takes many years to remove itself. In addition there are number of mechanisms that bring water under the slab. One such mechanism is clays suction from around the perimeter of a foundation. I document that more fully in my previous blog, "Evidence of MoistureLevel Smart Foundation System Performance." In addition through the “stack effect”, water vapor along with other gases is pulled in from around the perimeter of a structure to replace gases that are transmitted up through the foundation into the structure and by heat convection drawn up into the attic. This is a well-documented process for one of those gases, radon.
Particularly here in the arid Southwest, air-conditioning dries the surface of the slab promoting vapor transmission as well as condensation of water vapor as it is pulled through the slab. As water condenses the pH level is usually around seven which can promote dissolution and attacking of cement particles causing great greater voids in the concrete thus exacerbating the problem. Once this process has begun de-bonding of most surface treatments becomes more problematic over time.
Most solutions to this problem involve installing sealers on the surface of the concrete. This is problematic at best for the following reasons:
The problem here in the Southwest is exacerbated by the reluctance of installers to install a vapor barrier under the slab. Because of the arid hot curing conditions, placing a vapor barrier underneath a slab promotes extreme slab curling due to the difference of evaporation on the sealed bottom versus the open top.
Gutters and drainage improvements vs MoistureLevel smart foundation system
Recently I have heard about some contractor’s claim that gutters and drainage are a viable alternative to the moisture level system. While I
Moisture problems in slabs on grade
One of the benefits that I brought up earlier of MoistureLevel smart foundation system is the remediation of moisture problems in slabs on grade. How many of you have experienced the difficulty of excess moisture in slabs on grade?
A Real life example of how the MoistureLevel system saves a homeowner money
A homeowner calls, we do a free inspection and determine that further in depth analysis is needed. This particular house is in El Dorado Lakes, a neighborhood in Gilbert where the soils are regularly a problem.
How I created the MoistureLevel technology
So in my last blogs I discussed the problems facing the foundation repair industry and a potential solution to those problems with my moisture level system. So how did I come to develop the system?
MoistureLevel Smart Foundation System For Expansive Soils
In my last few blogs I pointed out how a majority of homes and commercial properties in arid climates get misdiagnosed, and that the majority of soil related damage ends up being heave. Up until now there have been no really viable solutions for that prob
Using sub slab depressurization to mitigate vapor transmissions
In my last blog I discussed the vexing problem of vapor transmissions through slabs on grade. In my previous post, MoistureLevel system proves cost effective for treating, I discussed the damage and consequences of moisture vapor as well as moisture tran
MoistureLevel system proves cost effective for treating vapor transmission
Our vapor transmission slabs on grade vexing problem the industry has struggled with many decades. Millions of dollars of damage has occurred as adhesives fail, coatings de-bond
Evidence of MoistureLevel Smart Foundation System Performance
It has been 19 months since our systems install have begun (excluding our experimental work in 2003) and we have now over 180 installs to date.
Total Listing: 8