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Gap between basement floor and cinder block wall?

Gap between basement floor and cinder block wall?


  #1  
Old 01-27-23, 04:02 PM
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Gap between basement floor and cinder block wall?

Summary: What's this gap for? Can it be filled with something?

I'm looking to start doing some radon mitigation. One area of uncertainty is a gap that's around 1/4" around the perimeter of my basement. It's an unfinished basement in the northeast with cinderblock walls. Does anyone know what this gap is for, and if it can be filled? I'm not even sure if radon could be coming up from here.

My basement level was 7.4, 1st floor living room 6.2, 1st floor bedroom 5.5, I think the central heat/ac system is spreading it. Not super high, but high enough that I want to start doing some things, I've already purchased sealed sump pump covers for the 2 sump pumps in the basement.





 
  #2  
Old 01-27-23, 05:20 PM
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apexigsx voted this post useful.
  #3  
Old 01-28-23, 06:24 AM
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The gap looks like you have a drainage system around the perimeter of your basement. A drainage "pipe" carries flood water to your sump pump where it is pumped out.

The rectangular openings allow any water coming down the wall to enter the drainage pipe.
 
2john02458, apexigsx voted this post useful.
  #4  
Old 01-28-23, 08:24 AM
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hmm, didnt see a photo when i replied. Yeah I wouldn't caulk that.
 
  #5  
Old 01-28-23, 08:46 AM
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My thoughts also a drainage system,

Try pouring water into it and see where if goes, you may be glad you didnt seal it up!
 
 

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