Dampness or wetness on the cement block of your basement or crawlspace
Most people do not associate dampness in basement (damp basement floor), or dampness or wetness on cement block in a basement as a problem that basement waterproofing can solve. One reason there can be dampness on cement blocks or floors is the water below the house is actually seeping into the basement through tiny holes or cracks in the cement floor. These holes or cracks can be, and likely are, undetectable if the floor is damp (versus pooling water).
Are you noticing water leaking through cracks in the walls?
If there are tiny holes or cracks in the cement block itself, it is important to be cautious of temporary solutions. Fixing the holes and cracks is a short-term solution. If water is coming in through these holes and cracks and causing a damp basement floor or damp crawlspace, it means water pressure is building up on the outside of the foundation.
Water pressure could be building because of a high water table, changes in grading to surface elements (yard, driveway, patio, etc.), or because of a clogged french drain.
Fixing the holes or cracks is not a solution that changes the behavior of the water to prevent it from building on the outside of the foundation, which is a problem that will not solve itself over time. With continued water pressure due to short-term fixes any of the following are very likely to happen over time:
- A recurrence of holes or cracks in the cement block
- New leaks in…
- the area where the wall meets the floor (called the cove)
- the wall, up to three or four feet high