DuPont(TM) Tyvek HomeWrap is a durable, non-woven, non-perforated sheet of spunbonded, high-density polyethylene (HDPE) with microscopic pores large enough for moisture vapor to pass through, but small enough to resist air infiltration and water intrusion
Helps to protect a home from the elements by reducing air infiltration, reducing water intrusion and vapour permeability