Vapor mitigation apparatus and method

A vapor mitigation apparatus for use with the construction of a building, the building having a foundation wall having an inner and an outer surface, and a footing, the apparatus comprising:

• a vertical member configured to be affixed to the foundation wall, the vertical member having a first end located proximate to the footing and a second end, and an inner surface facing away from the foundation wall, and an outer surface facing the foundation wall;
• a horizontal foot located at the first end of the vertical member wherein the horizontal foot is configured to rest upon the footing;
• a means of sealing and securing the vertical member to the foundation wall selected;
• from a pliable gasket, bead of acoustic sealant, silicone, expanding foam, rubberized foam, or adhesion strip;
• and
• a plastic sheet or membrane attached to the vertical member.

A method for vapor mitigation in the construction of a building, the building having a foundation wall having an inner and an outer surface, and a footing, said method comprising:

• installing a vapor mitigation apparatus in close abutment with the foundation wall and the footing, said vertical member having a first end located proximate to the footing and a second end, and an inner surface facing away from the foundation wall, and an outer surface facing the foundation wall, a horizontal foot located at the first end of the vertical member wherein the horizontal foot is configured to rest upon the footing;
• and a plastic sheeting or membrane having upper and lower edges attached at the upper edge to the vertical member;
• sealing and securing the vertical member to the foundation wall;
• placing a gas membrane over at least a portion of the footing;
• and
• sealing the lower edge of the plastic sheeting or membrane to the gas membrane.