Drainage channel for use in a building wall

1. A drainage channel comprising:

a drainage panel for conveying water from within a building wall, wherein the drainage panel is impermeable and comprises a first end and a second end; and

a rear panel coupled to the second end of the drainage panel such that the rear panel is configured to be coupled to an exterior sheathing of the building wall and arranged vertically relative to the building wall, the rear panel having a top end and a bottom end;

an intermediate panel having a top end and a bottom end, wherein the intermediate panel is parallel to the rear panel;

a bottom panel connecting the bottom end of the rear panel to the bottom end of the intermediate panel and forming a drainage well between the rear panel and the intermediate panel;

a front panel having a top end and a bottom end, wherein the front panel is parallel to the rear panel; and

wherein the first end of the drainage panel is coupled to the bottom end of the front panel and the second end of the drainage panel is coupled to the top end of the intermediate panel, wherein the drainage panel is angled downward from the front panel to the intermediate panel to convey water from a primary drainage plane at the front panel to a secondary drainage plane at the rear panel.

2. The drainage channel of claim 1 , wherein the drainage panel is configured to be positioned within the building wall such that the first end of the drainage panel is positioned outboard of the second end of the drainage panel relative to an exterior sheathing of the building wall, and wherein the rear panel is configured to be fastened to the exterior sheathing of the building wall and inboard of an insulating material of the building wall.

3. The drainage channel of claim 1 , wherein the front panel is configured to be fastened to a lath member of the building wall, outboard of an insulating material of the building wall.

4. The drainage channel of claim 1 , wherein the bottom panel comprises a plurality of apertures configured to drain water therethrough.

5. The drainage channel of claim 1 , wherein the rear panel comprises a plurality of apertures for receiving a fastener therethrough.

6. The drainage channel of claim 1 , wherein the front panel comprises a plurality of apertures for coupling the front panel of the drainage channel with a lath member of the building wall.

7. The drainage channel of claim 1 , further comprising:

a shelf extending from and arranged perpendicular to either a front face of the intermediate panel or a front face of the rear panel.

8. The drainage channel of claim 7 , wherein the shelf comprises a plurality of apertures therethrough for coupling the shelf with a second flange of a corner bead.

9. The drainage channel of claim 1 , further comprising: one or more lines scored along a longitudinal length of the drainage panel, wherein a respective portion of the drainage panel is foldable about each of the scored lines to position the respective portion of the drainage panel parallel to the rear panel, and wherein the front panel is foldable about a connection of the front panel and the drainage panel to position the front panel substantially coplanar with the respective portion of the drainage panel.

10. The drainage channel of claim 9 , wherein each of the one or more scored lines comprises a respective longitudinal notch defined in a top surface of the drainage panel.

11. The drainage channel of claim 9 , wherein each of the one or more scored lines comprises a respective longitudinal notch defined in a bottom surface of the drainage panel.

12. The drainage channel of claim 1 , wherein the drainage panel has a width extending from the first end of the drainage panel to the second end of the drainage panel of at least 1 inch.

13. The drainage channel of claim 1 , wherein the rear panel has a height extending from the top end to the bottom end of the rear panel, wherein the intermediate panel has a height extending from the top end to the bottom end of the intermediate panel, wherein the front panel has a height extending from the top end to the bottom end of the front panel, and wherein the height of the rear panel is greater than a combined height of the intermediate panel and the front panel.

14. The drainage channel of claim 1 , wherein the drainage panel, the rear panel, the front panel, the bottom panel and the intermediate panel are formed from at least one of a polymer-based material, a metal material, a metal alloy material, or a composite material.

15. The drainage channel of claim 1 , wherein the drainage channel is integrally formed as a single component.

16. The drainage channel of claim 1 , wherein the drainage channel is formed from at least a first drainage channel component comprising the rear panel and the bottom panel, and a second drainage channel component comprising the front panel and the drainage panel, and wherein the intermediate panel includes a first intermediate panel of the first drainage channel component positioned adjacent to a second intermediate panel of the second drainage channel component.

17. The drainage channel of claim 16 , wherein a rear face of the first intermediate panel is positioned adjacent to a front face of the second intermediate panel, such that the first drainage channel component forms a front face of the intermediate panel, and wherein the second intermediate panel forms a rear face of the intermediate panel.

18. A drainage system for attachment to an exterior sheathing of a panel structure, the drainage system comprising:

a weather resistive barrier coupled to the exterior sheathing, wherein the weather resistive barrier forms the secondary drainage plane of the drainage system;

an insulating material coupled to the exterior sheathing, wherein the insulating material is positioned outboard of and adjacent to the weather resistive barrier;

a water channel material coupled to the exterior sheathing, wherein the water channel material is positioned outboard of and adjacent to the insulating material, and wherein the water channel material forms a primary drainage plane of the drainage system;

a lath member coupled to the exterior sheathing, wherein the lath member is positioned outboard of and adjacent to the water channel material; and

the drainage channel according to claim 1 , wherein the first end of the drainage panel is positioned outboard of the water channel material such that any water from the primary drainage plane is directed inboard toward the weather resistive barrier.