High-Performance Housewrap

Benjamin Obdyke’s updated Flatwrap HP is a relatively high-perm housewrap designed for rainscreen applications, or as the secondary WRB for stucco and manufactured stone. According to the manufacturer, Flatwrap HP can be exposed for 120 days before cladding installation and features a trilaminate polypropylene substrate to protect the water hold-out layer from damage during install. The manufacturer reports a perm rating between 10 and 20 perms (perm ratings vary with ambient humidity conditions). The product is available in 3-, 5-, and 9-foot sizes. Pricing varies by distributor. benjaminobdyke.com