Abstract: The strip includes an elongated body having a pair of parallel sidewalls, an upper surface between sidewalls and a lower surface between sidewalls adapted to engage a water barrier on a wood roof. A plurality of spaced, inverted channels are formed along the body from the lower surface and terminate generally midway between the upper and lower surfaces. The channels extend between the body sidewalls and provide drainage perpendicular to the length of the body. The upper surface may be planar or be stepped. A plurality of spaced recesses with preset fasteners are disposed along the upper body surface.