A barrier article for use in building construction comprising a flexible substrate, said substrate being at least substantially impermeable to water and at least substantially permeable to water vapor, said substrate being at least 60 cm in width, 5 m in length, and 0.001 inches in thickness, said substrate including a pressure sensitive adhesive deposited on one major surface, said adhesive being in the form of a repeating pattern that covers less than 100% of the major surface, said adhesive having a viscosity of at least 10,000 centipoise at 250° F. and a depth of at least 1 mil.