15 mil vapor barrier by americover.
Vapor barrier for concrete slab floor.
Aci 302 1 which is an american concrete institute standard for slab construction was modified in the early 2000 s to reflect the change in the placement of the vapor barrier directly below the concrete if a low permeable membrane flooring was to be installed.
The use of underslab vapor barriers is the best method and most economical solution for controlling water vapor migration through concrete slabs.
2 4 how to install vapor barrier on concrete floor under laminate flooring why and how is there moisture in concrete slabs.
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.
Uncontrolled water vapor through concrete slabs has cost building owners designers and contractors billions of dollars.
The american concrete institute s guide for concrete floor and slab construction recommends that the thickness of the vapor retarder be at least 10 mils.
It helps reduce mold and condensation in buildings.
Americover has a high performance 15 mil vapor barrier for installation under concrete floors and slabs that will retard moisture migration and radon from escaping through the surface of the concrete floor.
There is always water underneath the ground while it might not be near the surface it is there.
One of the reasons those old basement floors were like that was because they had no vapor barrier beneath them leaving an easy path for water vapor from the soil to migrate into the slab assuring that the cold clammy damp feeling never went away.
The last thing you want your customers to envision when thinking of a concrete floor is a damp cold basement slab.
Vapor and gas barriers.