5 Common Sources of Moisture in Old Concrete

Many people believe they don’t need to test for moisture in old concrete slabs. They’re convinced a 20-year-old slab must be dry enough to install a finished floor product. However, this kind of thinking could lead to big trouble. Watch as Jason Spangler explains five common sources of moisture that could lead to very high relative humidity test results, even in an old slab. Read more articles about old concrete floors.

• 3 key lessons about moisture from an old concrete floor
• What to do when you find an old wet concrete slab
• Why measure moisture in old concrete floor slabs