Dupont Tyvek FlexWrap NF - 6 x 75 Roll - 2 Pack

DuPont FlexWrap NF 6 x 75 is a premium performance extendable self-adhered flashing material that can be applied over a wide range of building substrates. The NF descriptor stands for No Fasteners to highlight the fact that no mechanical fasteners are required during installation of this product. How FlexWrap NF Works: DuPont FlexWrap NF is an extendable self-adhered flashing material that can be applied over a wide range of building substrates including non-nailable sheathing materials like PS foam board fiberboard concrete masonry unit CMU and other such materials. FlexWrap NF products are three-layer assemblies consisting of a DuPont Tyvek top-sheet an adhesive layer and a release liner. With it s 100% butyl-based self-adhering layer it can be stretched and wrapped into a rough window opening before the window is installed or flashed around arched or custom-shaped windows as well as other wall penetrations. DuPont qualifies its flashing products according to the AAMA 711-07 Voluntary Specification for Self Adhering Flashing Used for Installation of Exterior Wall Fenestration Products. DuPont FlexWrap NF comes backed by a 10-year limited warranty from DuPont. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.