Patent ID: 8291677

Claim:
A method of constructing a structure for drainage under decks that have joists, the structure forming a continuous ceiling concealing the joists; the method comprising: connecting a set of hanging components to hang from respective joists under a deck; the act of connecting the hanging components including: for one or more of the hanging components that each have connected first and second portions, connecting the first portion with a side surface of the respective joist with a plurality of first fasteners to hang from the respective joist, said first portion extending downward to where it connects to the second portion; at least one of the hanging components having one of a U-shape and an inverted T-shape with at least one leg and at least one arm, the first portion being the leg and the second portion being the arm; the second portion being below the respective joist; and connecting a set of panels with the second portion of said hanging components with a plurality of second fasteners so that the panels are under the joists; at least one panel in the set having an upper surface with at least one corrugation extending in a corrugation direction; the act of connecting the panels including, for at least one of the panels: connecting the second portion of at least one of the hanging components to support the panel from above; after the acts of connecting the hanging components and the panels, 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 having a slope sufficient that drainage across the upper surfaces occurs from the high part to the low part; the act of connecting the panels further including: positioning the panels to cover a total area under the deck so that none of the joists are visible between panels and subsets of contiguous panels overlap with the upper surfaces of all the panels in the set forming a substantially uninterrupted drainage surface under the joists.