Patent ID: 7607270

Claim:
An exterior wall or roof assembly of a building, comprising: an inner sheathing member; an exterior building material; and a drainage-promoting wrap applied within said assembly between said inner sheathing member and said exterior building material, said wrap comprising a weather-resistive membrane having a series of separate spaced-apart elongate polymeric filaments each separately bonded to a face of said membrane; said separate elongate filaments being sufficiently spaced-apart such that a portion of said face of said membrane is exposed between each adjacent pair of said separate spaced-apart elongate filaments; and each of said separate spaced-apart elongate polymeric filaments having a series of depressions formed therein that provide a series of drainage paths transversely across said filaments, each of said depressions being formed by a flattened section of said elongate filament, and each of said flattened sections being fused to said membrane to bond said filament to said membrane.