Patent ID: 7584580

Claim:
A structure that performs drainage under a deck that has joists; the structure comprising: a set of hanging components connected to hang from the joists, one or more of the hanging components each having connected first and second portions, the first portion being connected to hang from a respective one of the joists and extending downward to where it connects to the second portion; the second portion being below the respective joist; the first portion of at least one hanging component being connected at a lateral surface of the respective joist, the second portion having downward distance below the respective joist's lower surface; a set of panels under the joists; at least one panel in the set having an upper surface with at least one corrugation extending in a corrugation direction; each joist extending in a respective lengthwise direction approximately parallel to the corrugation direction; the second portion of at least one of the hanging components being connected to support at least one panel in the set from above; the upper surfaces of panels in the set being sloped from a high part to a low part in a slope direction not perpendicular to the corrugation direction; the upper surfaces being sloped so that drainage across the upper surfaces occurs from the high part to the low part; and cross pieces extending approximately perpendicularly to the lengthwise direction of the joists, with each cross piece being connected at its upper surface to the second portions of a subset of the hanging components and being connected at its lower surface to one or more of the panels.