Finish the building envelope with a superior seam tape – DuPont Tyvek Tape. It helps to create a continuous building envelope system that keeps water and air out. Benefits can include better building durability and improved energy efficiency through reduced air leakage. Tyvek Tape is strong, easy to use, and highly waterproof. It is constructed of an oriented polypropylene film, coated with a specially formulated permanent acrylic adhesive to create the best adhesion between seam tape and DuPont Tyvek weather barriers. Whether it is a single family home or an office tower, air and water infiltration can make insulation significantly less effective and heating and air conditioning more costly. Tyvek Tape contributes to energy efficiency by helping to seal the building envelope, which controls airflow and water intrusion in the wall assembly.