DIY Home Improvement Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
6,729 Posts
interesting as rare to see 'expansion' joints in an area where conc dimension's stable,,, what's the ambient radon reading ? typically you'd use closed cell backer rod & (polyurethane/silicone/polysulfide) concrete sealant,,, much cheaper to install air exchanger on timer than radon system
 

·
Registered
Joined
·
28 Posts
Discussion Starter #3
My radon readings are like 14 to 15, noticed the expansion joints need to be sealed up then plan on installing a radon fan in the sump so hopefully radon readings will go down. First I thought sealing with cement but that will crack so will try a backer rod and tube sealer.
 

·
Hammered Thumb
Joined
·
2,817 Posts
The interior field of a basement should have "control" joints rather than "expansion" joints. Goodness, that looks like a seismic fault, not a control joint.
 
1 - 5 of 5 Posts
Top