DuPont de Nemours, Inc. (DD) has introduced its newest roofing underlayment product range, the Tyvek Protec PSU peel and stick underlayment. The product is intended to give high-performance, high-temperature and UV resistance, as well as a slip-resistant walking surface, split liner for ease of installation, an ICC-ES code report and the coveted FL/Miami-Dade certification. The self-adhered Tyvek Protec PSU product is designed for important regions of the roof, such as the eaves and valleys, which are more ...