Tyvek Homewrap helps prevent the infiltration of air and water, but lets water vapor escape to prevent rot and mold inside walls. DuPont™ Tyvek® HomeWrap® is the original house wrap, incorporating unique material science that helps keep air and water out, while letting water vapor escape.

As a result, it can contribute to improved building durability by helping to protect homes against damaging wind and rain that can penetrate the exterior cladding.