Attempting to seal the cove joint or floor cracks is not a recommended repair strategy for situations where water is seeping in from beneath the floor.
Moisture coming through cracks in basement floor.
Hire a professional concrete contractor to spot the cracks and to seal them to prevent water from coming up through.
The easiest way for water to leak through concrete is to come in through any cracks in the floor.
It may not feel lucky to enter your basement and find a patch of water on the floor but it s better than having a subtle slow leak that degrades over time.
If you don t provide adequate concrete pressure relief the concrete floor may crack or even buckle.
This induces a negative pressure on the basement and draws moist air in through any cracks or openings in the foundation including open sump pits.
You should also seal the supporting joints.
Ignoring cracks in your concrete floor even those as small as 1 8 inch wide is like inviting water into your home.
If the basement drains don t allow for an overly high water table you may have water seeping through the concrete walls and floor.
Often times a crack in the floor of a basement is caused from the natural shrinking and curing process of the concrete used to pour the floor itself.
Air leakage through walls and floor air leakage through walls and floor.
For this reason sumps should have an airtight cover.
It s also possible that there are cracks along the basement or garage floor.
In a nutshell this system is installed beneath a basement floor to collect ground water and pump it out before it gets high enough to push up through basement floor cracks and or the cove joint.
The water table is higher during rainy periods and lower during dry spells.
To seal up these cracks use a concrete patching compound available from hardware and home improvement stores.
In most houses a stack effect is created because warm air rises.
Exterior grade caulk will do.