TRI-BUILT® Non-Woven Balanced Perm house wrap is strong non-woven engineered fabrics that shed water and reduce air infiltration yet allow the transfer of moisture vapor to the outside, creating a healthier and more energy efficient structure. TRI-BUILT® house Wrap is the best choice for severe weather protection, providing real-world resistance to moisture and is more surfactant-resistant than most building wrap materials. TRI-BUILT® Non-Woven Balanced Perm provides reliable weather protection for projects with high-perm moisture transfer requirements. In a market cluttered with house wraps, only TRI-BUILT® offers the flexibility in choice of performance building wraps engineered for your specific requirements.