How to Check for Basement Floor Moisture Video

Within months of finishing a basement, high moisture levels can cause mold to begin to show up on your finished drywalls, and any other areas of the finished basement where there is little air flow and not a lot of natural light.

It will also grow behind the finished walls, on the back of the drywall, and underneath the basement flooring. Testing for Moisture in Basement Floor To determine if your basement slab floor has high moisture levels percolating up through it, simply tape down a few small patches (2 inches by 2 inches) of clear plastic using duct tape around the edges of the plastic patches.  Tape the patches down in several locations around the basement floor.

Then inspect the patches 24 to 48 hours later. If you see moisture adhering to the underside of the plastic then you know you have a basement floor moisture problem.

How to Solve Basement Moisture Problem

To resolve a basement moisture problem contact a basement waterproofing contractor. They may end up recommending installing a perimeter drain around the foundation of your home. They may also recommend some type of epoxy sealer for the basement floor and walls. Note that simply painting your basement floor won’t solve the problem. Moisture will work its way up through the paint over time.