What is ASTM E 1643-98?
"Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs."ASTM E 1643-98 is an installation guide titled, "Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs." Stego Industries subscribes to all of the installation procedures outlined in this standard.