Deck drainage system

A deck drainage system, comprising:

• a water-receiving structure locatable under a deck and comprising a proximal end locatable adjacent to a structure to which the deck is attached and a distal end locatable distally from the structure to which the deck is attached;
• a connector locatable adjacent to the structure to which the deck is attached and having a channel that receives the proximal end of the water-receiving structure;
• a gutter connectable to the deck adjacent to the distal end of the water-receiving structure for receiving water from the water-receiving structure, wherein the water-receiving structure angles downward from the connector toward the gutter so that the proximal end is at a higher elevation than distal end;
• caps respectively adjacent to first and second sides of the water-receiving structure, each cap comprising a ledge that engages a bottom of the water-receiving structure, each cap angling downward from adjacent to the connector toward the gutter so that each of the caps is at a higher elevation adjacent to the connector than adjacent to the gutter, each cap comprising an open channel with an opening over which the bottom of the water-receiving structure extends, the ledge of each cap terminating at the opening to the channel of that cap and forming an upper boundary of the channel of that cap;
• a plurality of water deflectors, respective ones of the plurality of water deflectors locatable between successively adjacent joists of the deck, each of the plurality of water deflectors connectable to a surface to which ends of the joists of the deck are connected and that is adjacent to the proximal end of the water-receiving structure;
• wherein each of the water deflectors angles downwardly from the surface to which the ends of joists of the deck are connected so that a distal end of each of the water deflectors is located directly vertically above and is separated from a location in an interior of the water-receiving structure that is between the proximal and distal ends of the water-receiving structure and so that each deflector is at a higher elevation adjacent to the surface to which the ends of joists of the deck are connected than at the distal end of that deflector.

A method of forming a drainage system under a deck, comprising:

• forming a water-receiving structure under the deck, the water-receiving structure comprising a proximal end adjacent to a structure to which the deck is attached and a distal end located distally from the structure to which the deck is attached, wherein the water-receiving structure angles downward from the proximal end of the water-receiving structure toward the distal end of the water-receiving structure;
• connecting a plurality of water deflectors to a surface to which ends of joists of the deck are connected and that is adjacent to the proximal end of the water-receiving structure so that respective ones of the plurality of water deflectors are respectively located between successively adjacent joists of the deck, wherein each of the water deflectors angles downwardly from the surface to which ends of joists of the deck are connected so that a distal end of each of the water deflectors is located directly vertically above and is separated from a location in an interior of the water-receiving structure that is between the proximal and distal ends of the water-receiving structure and so that each deflector is at a higher elevation adjacent to the surface to which ends of joists of the deck are connected than at the distal end of that deflector;
• and
• connecting a gutter to the deck adjacent to the distal end of the water-receiving structure;
• wherein forming the water-receiving structure under the deck comprises interconnecting a plurality troughs of the water-receiving structure by receiving a horizontal tab of a first sidewall of a first trough of the plurality troughs in a horizontal channel of a first sidewall of a successively adjacent second trough of the plurality of troughs;
• wherein a horizontal upper boundary of the horizontal channel of the first sidewall of the successively adjacent second trough extends from a location that is directly vertically above a location on a bottom of the successively adjacent second trough between a vertical portion of the first sidewall of the successively adjacent second trough and a second sidewall of the successively adjacent second trough past the first sidewall of the first trough to a location that is directly vertically above a location on a bottom of the first trough between the first sidewall of the first trough and a second sidewall of the first trough.