Re: How do I waterproof basement with exposed footing?
Extending the downspouts and grading soil away from the house are the first major steps in preventing water infiltration.
The source of water infiltration is the soil outside becomes saturated with water along with the force exerted by this wet soil forces moisture into the foundation--- especially block foundations.
To be honest if you are considering finishing the basement you need to ensure that all moisture issues are taken care of before. Otherwise you will waste a lot of money and time when things get ruined.
In my opinion the proper way to prevent moisture infiltration is from the exterior ---- the source. Unfortunately this is the most expensive and intrusive method since it requires excavating the exterior perimeter of the foundation.
Once that's done a water proofing system is applied which would consist of a perimeter drain along the footings ---- an elastomeric membrane applied to the wall surface ----- a drainage layer over that ---- back filled and you're dry.
The interior method is cheaper but in my opinion this isn't better since you are still allowing the moisture from the exterior soaking into the blocks ----- then draining into the interior.
Preventing the moisture infiltration at the source ----- the exterior ---- is always the better option.
"" an ounce of perception -- a pound of obscure "