If you want to make sure your slab on ground gets dry and stays dry use a vapor barrier.
Moisture barrier on concrete slab.
Cure with waterproof sheets rather than with water or curing compounds.
A concrete vapor barrier is any material that prevents moisture from entering a concrete slab.
Sole plates or sill plates are the first pieces of framing lumber placed in home construction.
But they have also proven to be beneficial in reducing failures of moisture sensitive flooring materials adhesives and coatings caused by excessive emission of moisture vapor from concrete slabs.
Choosing a vapor barrier.
These plates must be made of pressure.
But consider going with a barrier that has water vapor permeance less than 0 3 perms.
Without a vapor barrier the relative humidity in the slab just below the surface can often be 100.
Perminator vapor barriers help reduce the penetration of moisture and water vapor through the slab and into the building which helps reduce mold fungus and mildew.
Perminator also helps reduce radon gases from entering a building through.
It needs to dry and then stay dry to avoid flooring problems.
Vapor barriers are used because while fresh concrete is poured wet it s not supposed to stay that way.
Meadows 10 and 15 mil vapor barrier.
However allowing excess moisture to leave the slab after it s poured is crucial to a successful flooring installation.
To take it one step further astm e 1745 class a vapor barriers products with less than 0 01 perms are the best approach to protecting your concrete slab and components moisture sensitive floor and iaq from moisture sources below.
Once the slab is poured the excess moisture must leave the slab in order to strengthen the concrete bond.
Meadows makes a concrete vapor barrier called perminator.
Water is an inherent part of the hydration process of concrete.
All vapor barriers should conform to astm e 1745.
Moisture barrier between the sole plate the concrete slab.