ARTHUR P. PAZIA

ABSTRACT

In masonry cavity walls, sprayed polyethylene foam (SPF) provides special benefits as an air barrier: permanence, resistance to air flow, structural soundness and continuity. SPF also delivers distinctive advantages as thermal insulation. These advantages include the elimination of convective air flow, the control of moisture transfer and condensation, and minimizing of thermal bridging. In addition, SPF acts effectively as a vapour retarder.

G-15