A vapor barrier for mounting and sealing on a foundation wall using adhesive. The vapor barrier includes a moisture impervious sheet having a first exterior side surface arranged to extend adjacent to and downward along the foundation wall when mounted. An adhesion strip is secured to the first exterior side surface being adapted to absorb an adhesive placed on the foundation wall for securing the moisture impervious sheet to the foundation wall. The adhesion strip comprising a porous synthetic fibrous web capable of distributing the adhesive completely through the adhesion strip to the first exterior side surface of the moisture impervious sheet during mounting to the foundation wall so that an air and moisture tight seal is formed between the foundation wall, the adhesion strip, and the moisture impervious sheet.