Re: Efflorescence and cracking paint
Hard to say for certain from here but it seems you have a drainage problem.
Originally Posted by jonan93
What appears to be happening is water is saturating the soil around the foundation. After a while the pressure of the wet soil forces the water contained into the foundation wall .... known as hydrostatic pressure. When this occurs regularly the concrete will become saturated with water from the exterior and wick through. The salts in the concrete mix is what you are seeing from this water being forced through.
The paint on "waterproof" paint is not a proper method to prevent this .... as you can see from your situation. In my opinion this product is a waste of money and shouldn't be considered as waterproofing or resolving water infiltration issues ... especially from the inside.
No reputable foundation contractor would ever use or warrant using this product as a waterproofing covering .
The most effective way to resolve your water infiltration problem would be excavating around the exterior of the foundation and repairing any cracks in the foundation. Repair or install a proper perimeter drain system around the footing of the foundation.
Applying a proper waterproofing elastromeric coating the exterior walls ....covered by a drainage membrane before back filling.
It is the most expensive and intrusive method but the most effective.
By doing this you are protecting the foundation from moisture problems at the source .... the exterior.
A cheaper alternative is to have a perimeter drain installed on the inside.
Basically ... a trench is dug along the floor near the wall .... drain piping is installed and terminating into a sump pit which is emptied by a sump pump piped outside.
With block walls holes are drilled along the bottom course alond with a dimpled plastic sheet membrane allowing the water satruating the walls to drain into the new drain system.
Personally I don't like this method since it still allows the moisture from the exterior the migrate into the interior. Though with the interior drain this does relieve the pressure ..... however .... the basement will still be damp from a higher humidity level. It does beat trying to solve this kind of problem with a paint on product bought off the shelf.
Hopefully this helps.
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