DRAIN SCREED DEVICE

Abstract

A drainage screed includes an attachment flange, a drainage leg, and a lip. With the attachment flange attached at a wall structure, the drainage leg extends from a lower edge region of the attachment flange. The lip extends from the drainage leg at a location along the drainage leg that is between the attachment flange and a distal end of the drainage leg distal from the attachment flange. A first portion of the drainage leg extends between the attachment flange and the lip, and a second portion of the drainage leg extends between the lip and the distal end of the drainage leg. A first drainage hole extends through one selected from the group consisting of the first portion of the drainage leg and the lip. The first portion of the drainage leg extends downward toward the first drainage hole to promote drainage through the first drainage hole.

Description

FIELD OF THE INVENTION

The present invention relates generally to ventilation systems for wall structures and, more particularly, to drainage screeds of ventilation systems for wall structures.

BACKGROUND OF THE INVENTION

Vinyl siding or fiber cement siding or wood or engineered siding or panels or other surface materials such as plastic or stone veneer are typically used for exterior surfaces in home or commercial building construction. For example, felt paper and/or a weather resistant barrier or a rain screen may be applied over plywood or other sheathing material and the siding or panels may be installed over the felt paper and/or weather resistant barrier or rain screen. The siding or panels may be installed flat or in a shiplap configuration. In order to provide a smooth edge where the surface material meets a door or window jamb or frame or the bottom of a wall section, such as over window or door openings or at the bottom of the wall, it is known to provide a barrier or border to define the edge of the surface material. These walls frequently have moisture venting and draining problems as moisture becomes trapped behind the finishing surface material, which may promote mold growth and cause water damage to the building walls. Further, traditional starter strips used during the installation of the siding or panels often compress the rain screen, creating a dam for water, preventing venting and preventing drainage from the wall.

SUMMARY OF THE INVENTION

A drainage screed includes an attachment flange configured for attachment at a wall structure. A drainage leg, with the attachment flange attached at the wall structure, extends from a lower edge region of the attachment flange. A lip extends from the drainage leg and at least partially along the attachment flange. The lip extends from the drainage leg at a location along the drainage leg that is (i) spaced from the attachment flange and (ii) spaced from a distal end of the drainage leg distal from the attachment flange. For example, the lip extends at least partially toward the attachment flange so as to extend at an oblique angle relative to the drainage leg. A first portion of the drainage leg extends between the attachment flange and the lip, and a second portion of the drainage leg extends between the lip and the distal end of the drainage leg. A first drainage hole or slot (such as an elongated slot or substantially oval shapped drainage hole), or a plurality of first drainage holes, extends through the first portion of the drainage leg. The first drainage hole, with the attachment flange attached at the wall structure, is disposed at a lower region of the first portion of the drainage leg to promote drainage through the first drainage hole. For example, the first portion of the drainage leg is curved or sloped or angled toward the first drainage hole, with the drainage hole extending through a lower most point of the curved first portion of the drainage hole. The second portion of the drainage leg may include a second drainage hole or a plurality of second drainage holes. Thus, with the drainage screed attached at the wall structure, a rain screen may be aligned with the first portion of the drainage leg and a wall surface material may be at least partially received at the lip and the second portion of the drainage leg to create a drainage cavity behind the wall surface material and promote drainage from behind the wall through the first drainage hole.

These and other objects, advantages, purposes, and features of the present invention will become apparent upon review of the following specification in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a drainage screed;

FIG. 2 is a front side view of the drainage screed;

FIG. 3 is a rear side view of the drainage screed;

FIGS. 4 and 5 are end views of the drainage screed;

FIG. 6 is a top view of the drainage screed;

FIG. 7 is a bottom view of the drainage screed;

FIG. 8 is an end view of the drainage screed with example dimensions;

FIG. 9 is a top view of the drainage screed with example dimensions;

FIG. 10 is a front side view of the drainage screed with example dimensions;

FIG. 11 is a bottom view of the drainage screed with example dimensions;

FIG. 12 is a perspective view of another drainage screed;

FIG. 13 is a front side view of the drainage screed of FIG. 12;

FIG. 14 is a rear side view of the drainage screed of FIG. 12;

FIGS. 15 and 16 are end views of the drainage screed of FIG. 12;

FIG. 17 is a top view of the drainage screed of FIG. 12;

FIG. 18 is a bottom view of the drainage screed of FIG. 12;

FIG. 19 is an end view of the drainage screed of FIG. 12 with example dimensions; and

FIG. 20 is an end view of another drainage screed with example dimensions.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

In building construction, exterior and interior surfaces are often made of vinyl siding, wood or engineered siding, panels, stone veneer and other finishing surface materials. As described herein, a drainage screed positioned at a wall structure along a lower terminal edge (e.g., a terminal edge that is below an upper or top edge of the wall) of the finishing wall surface material provides a drainage pathway for water and water vapor to escape from behind the wall surface material and exterior the wall structure. The wall structure may include a vertical wall structure or upright and angled wall structure where moisture drains downward along the vertical wall structure toward the lower terminal edge. At least some water vapor may exhaust upward along the vertical structure toward an upper terminal edge. Further, the drainage screed receives the finishing wall surface material along the lower terminal edge to provide a neat and uniform edge of the exterior surface, improving the appearance of the wall structure and reducing the time and costs necessary to install smooth finishes.

Referring now to the drawings and the illustrated embodiments depicted therein, a drainage screed 10 includes a substantially planar attachment flange 12 that, with the drainage screed 10 installed at the wall structure, extends along the wall structure and behind the wall surface material (FIG. 1). A drainage leg or perforated drainage tray 14 extends from a lower end region of the attachment flange 12 and away from the wall structure. A flange or lip 16 extends upward from the drainage leg 14 and at least partially along the attachment flange 12 to define a drainage cavity between the attachment flange 12 and the lip 16 along the drainage leg 14.

Construction of the wall structure may include the installation of a felt layer over a backing wall (e.g., plywood or similar material), a weather resistant barrier such as a rain screen and/or an insect screen, and the siding or other surface material such as vinyl siding, fiber cement siding, wood or engineered siding or panels, plastic or stone veneer and the like. Optionally, construction may include attaching furring strips (such as wood or plastic furring strips) at the backing wall. Such construction occurs in layers. For example, the felt paper may be applied over the backing wall, with the attachment flange 12 of the drainage screed 10 disposed over the felt paper. Optionally, the attachment flange 12 of the drainage screed 10 is disposed at the backing wall with the felt paper applied over the attachment flange 12. A moisture seal and/or a rain screen or other suitably porous material or weather resistant barrier may be installed behind the attachment flange 12 or over the attachment flange 12 and the finishing material (e.g., the boards of vinyl siding or panels) is then applied over the attachment flange 12 of the drainage screed 10, with the drainage leg or tray 14 of the drainage screed 10 at least partially receiving the finishing material to define a lower terminal edge of the wall material (such as at the bottom of the wall structure, or above a window or door opening). The finishing material may be installed in any suitable manner, such as flat at the wall structure or in a shiplap configuration with adjacent pieces at least partially overlapping one another.

Referring to FIGS. 1-7, the attachment flange 12 includes one or more apertures or through holes 18 extending through the attachment flange 12 between a first or outer side and a second or inner side of the attachment flange 12. Thus, with the drainage screed 10 installed at the wall structure, the second side of the attachment flange 12 faces the backing wall and one or more fasteners (e.g., screws, nails, anchors and the like) may extend through the one or more apertures 18 to attach the drainage screed 10 at the backing wall. Optionally, the attachment flange 12 comprises a perforated attachment flange with a plurality of apertures formed therethrough (and optionally in a repeating pattern across the attachment flange).

With the attachment flange 12 attached at the wall structure, the drainage leg 14 extends away from the wall structure and along the lower edge region of the attachment flange 12. For example, the drainage leg 14 may extend from the lower edge or above the lower edge of the attachment flange 12. The drainage leg 14 is configured to receive the wall surface material to define the terminal lower edge of the wall structure. That is, the drainage tray 14 may receive a lower edge portion of the siding and hold the siding at the lower edge of the wall.

The lip 16 extends from the drainage leg 14 and at least partially along the attachment flange 12 and is spaced from the attachment flange 12 to define the drainage cavity between the lip 16 and the attachment flange 12. The lip 16 may extend from the drainage leg 14 at a position along the drainage leg 14 between the attachment flange 12 and an end of the drainage leg 14 distal from the attachment flange 12 such that a first portion 14a of the drainage leg 14 extends between the attachment flange 12 and the lip 16 and a second portion 14b of the drainage leg 14 extends from the lip 16 and away from the lip 16 and the first portion 14a (FIG. 4). The first portion 14a, the lip 16 and the attachment flange 12 cooperate to define the drainage cavity.

With the drainage screed 10 installed at the wall structure, the moisture seal and/or rain screen extend along the first side of the attachment flange 12 and above the first portion 14a of the drainage leg 14 to align the rain screen and the drainage cavity. Thus, moisture in the wall may drain along the rain screen and through one or more apertures or drainage holes or slots 20 formed through the bottom of the first portion 14a of the drainage leg 14. The second portion 14b of the drainage leg 14 and a side of the lip 16 facing away from the attachment flange 12 may be configured to receive a lower edge portion of the wall surface material to separate the wall surface material from the drainage cavity. Thus, the drainage screed 10 includes a vertical or upright member that acts as a starter strip to provide clearance for the rain screen. That is, the second portion 14b of the drainage leg and the lip 16 may provide a starter strip to space the wall surface material away from the wall during installation, such as to provide space for the rain screen at the attachment flange 12 and reduce or eliminate compression of the rain screen during installation of the wall surface material.

The first set of drainage holes or slots 20 are formed through the first portion 14a of the drainage leg 14 to allow moisture to flow down the rain screen and out of the wall structure through the slots 20 in the drainage cavity. The drainage slots 20 may comprise any suitable shape, such as circular through holes or elongated slots extending along a longitudinal axis of the drainage cavity, and are arranged along the length of the drainage screed 10. In the illustrated example, the first portion 14a of the drainage leg 14 is curved or sloped or angled toward the set of drainage slots 20 to promote drainage (FIGS. 4 and 5). That is, the slots 20 are formed through the first portion 14a of the drainage leg 14 between the attachment flange 12 and the lip 16, with the part of the first portion 14a between the attachment flange 12 and the slots 20 curved or sloped or angled toward the slots 20 and the part of the first portion 14a between the lip 16 and the slots 20 curved or sloped or angled toward the slots 20.

Optionally, the drainage slots 20 may be formed at an edge region of the drainage leg 14 adjacent to or along the attachment flange 12 with the first portion 14a of the drainage leg 14 curved or sloped or angled toward the slots 20 at the attachment flange, or the drainage slots 20 may be formed at an edge region of the first portion 14a adjacent to or along the lip 16 with the first portion 14a curved or sloped or angled toward the lip 16.

A second set of drainage holes or slots 22 may be formed through the second portion 14b of the drainage leg 14 between the lip 16 and the distal end of the drainage leg 14, with the second portion 14b of the drainage leg curved or sloped or angled toward the second set of drainage holes 22. For example, the second set of drainage holes 22 may allow for excess moisture trapped in or behind the surface material to drain.

With the wall surface material applied over the rain screen, the rain screen is aligned with the drainage cavity and the lip 16 at least partially receives the wall surface material to preclude the wall surface material from entering the drainage cavity and interfering with drainage behind the wall surface material and through the drainage cavity. That is, the lip 16 may preclude the siding or wall surface panel from being inserted into the drainage cavity and blocking the drainage holes 20 during installation. The lip 16 is curved or sloped or angled at least partially toward the attachment flange 12. That is, the lip 16 may extend from the drainage leg 14 and at least partially toward the attachment flange 12 and the lip 16 may be at an oblique angle (e.g., such as 80 degrees, 70 degrees, 60 degrees, 45 degrees, and the like) relative to the drainage leg 14.

Further, the distal end of the drainage leg 14 may include a protrusion or bead portion 24 extending from the drainage leg 14 and partially along the attachment flange 12, such as to retain the wall surface material at the drainage screed and preclude the wall surface material from extending past the distal end of the drainage leg 14. Put another way, the bead portion 24 at the distal end of the drainage leg 14 provides a raised lip for engaging the lower edge portion of the wall material. Optionally, the bead portion 24 of the drainage leg 14 includes an overcoat or covering or capping, such as a metallic coating, a hardened vinyl coating, a water resistant coating, a paint coating and the like. For example, the vinyl coating may be colored or tinted to match (or contrast) the vinyl siding installed at the wall structure.

Optionally, the drainage cavity may be configured to receive at least a portion of the siding or wall panel (e.g., a lower edge of the siding or wall surface panel), with the angled lip 16 configured to hold or secure the siding or wall panel between the lip 16 and the attachment flange 12. The lip 16 may flex to accommodate the siding and retain the siding between the lip 16 and the attachment flange 12.

The drainage screed may be formed from any suitable material. For example, the drainage screed 10 may be formed from PVC plastic, a metallic material, or any formable material.

FIGS. 8-11 depict example dimensions of the drainage screed 10. For example, the attachment flange 12 may have any suitable height or length dimension, such as 3.5 inches and a thickness dimension of 0.08 inches. The drainage leg 14 may extend 1.219 inches from the attachment flange, with the first portion 14a of the drainage leg 14 extending 0.63 inches or 16 millimeters from the attachment flange 12. The lip 16 may extend at an oblique angle relative to the drainage leg 14 such that the upper end of the lip 16 distal from the drainage leg 14 is 0.525 inches from the attachment flange 12 and 0.5 inches above the drainage leg. The coating at the cap portion 24 may be 0.01 inches thick.

Further, the apertures 18 through the attachment flange 12 may have a substantially oval shape, with a height of 0.3 inches and a width of 0.166 inches. The apertures 18 may be arranged along the attachment flange 12 with four inches between adjacent apertures. The first set of drainage slots 20 may also have a substantially oval shape, with a length of 0.75 inches and a width of 0.125 inches. The first set of drainage slots 20 may be arranged along the first portion 14a of the drainage leg 14 with two inches between adjacent drainage slots 20. The second set of drainage holes 22 may be circular and arranged along the second portion 14b of the drainage leg 14 with four inches between adjacent drainage holes 22.

Optionally, the drainage screed may include one or more drainage holes extending through the lip to allow for moisture to drain from the drainage cavity through the drainage holes formed in the lip and off the end of the drainage leg distal the attachment flange. For example, and referring to FIGS. 12-19, a drainage screed 110 may include one or more apertures or through holes or drainage slots 126 extending through the lip 116 so that moisture that drains from the wall surface material into the drainage cavity between the lip 116 and the attachment flange 112 may flow along the drainage leg 114 through the drainage slots 126 and away from the wall structure. With the drainage screed 110 attached at the wall structure, the drainage leg 114 extends from a lower end region of the attachment flange 112 (such as a lower end of the attachment flange) and at a downward angle from the attachment flange 112. That is, with the attachment flange 112 generally parallel to the wall structure, the drainage leg 114 may extend at an obtuse angle (e.g., 91 degrees or more, 95 degrees or more, 120 degrees or more, and the like) relative to the wall structure. The lip 116 extends upward from the drainage leg 114 and partially along the attachment flange 112, with the drainage slots 126 formed through the lip 116 at or near the drainage leg 114. In other words, the drainage slots 126 extend through a lower edge region of the lip 116 at or near or adjacent to an upper surface of the drainage leg 114. For example, the drainage slots 126 may be aligned with the upper surface of the drainage leg 114.

Thus, the first portion 114a of the drainage leg 114 extends between the attachment flange 112 and the lip 116 and may extend at a downward angle relative to the attachment flange 112, such as 95 degrees, 100 degrees, 110 degrees and the like. The second portion 114b of the drainage leg 114 extends from the lip 116 and at the downward angle. The bead or cap portion 124 may extend downward and away from the end of the second portion 114b of the drainage leg 114. As shown in FIG. 18, the drainage leg 114 may not include any drainage holes or slots so that moisture may drain from the end of the drainage leg 114 rather than through the drainage leg 114. Thus, moisture draining through the drainage cavity may flow along the first portion 114a of the drainage leg 114, through the drainage slots 126, along the second portion 114b of the drainage leg and along the bead 124 and away from the drainage screed 110 and the wall structure. Capping may extend along the second portion 114b of the drainage leg 114 and the bead 124.

Optionally, a tab or protrusion 128 extends away from the lip 116 spaced from and partially along the second portion 114b of the drainage leg 114. That is, the protrusion 128 extends from the lip 116 at a position along the lip 116 that is spaced from the drainage leg 114 to form a space or gap between the protrusion 128 and the second portion 114b of the drainage leg 114. For example, the protrusion 128 may extend parallel to the second portion 114b of the drainage leg 114. The protrusion 128 may be configured to receive a lower edge portion of the wall surface material to preclude the wall surface material from blocking the drainage path from the drainage slots 126 and along the second portion 114b of the drainage leg 114. Thus, with the drainage screed 110 attached at the wall structure, the lower edge portion of the wall material may rest on the protrusion 128 to maintain a gap between the wall material and the drainage leg 114. The gap provides a drainage path for moisture through the drainage slots 126 and along the drainage leg 114 away from the drainage screed 110 and wall structure. That is, the protrusion 128 may provide a starter strip for positioning the siding panels before and/or after attachment at the wall.

The drainage leg may extend any suitable distance from the attachment flange, such as to accommodate different thicknesses or additional layers of wall material. For example, and referring to FIG. 20, a drainage screed 210 may be substantially similar to the drainage screed 110, with the second portion 214b of the drainage leg 214 extending further from the lip 216 compared to the second portion 114b of the drainage leg 114.

FIGS. 19 and 20 depict example dimensions for the drainage screed. For example, the attachment flange may extend 3.5 inches and be 0.08 inches thick. The drainage leg may extend from the attachment flange at an angle of 95 degrees and extend for 1 inch (FIG. 19) or 1.5 inches (FIG. 20). The lip may extend from the drainage leg at an angle relative to the drainage leg and the attachment flange such that the lower end of the lip is 0.512 inches or 13 millimeters away from the attachment flange and the upper end of the lip is 0.433 inches or 11 millimeters away from the attachment flange. The lip may extend 0.625 inches from the drainage leg. The protrusion may extend 0.125 inches from the lip and at a distance of 0.255 inches above the drainage leg. The bead may extend 0.15 inches below the drainage leg.

Thus, the drainage screed is specifically designed to start and terminate the bottom of the wall or any horizontal juncture in a sided wall. The drainage screed includes a starter lip or starter leg that allows the first course of siding to be spaced away from the rain screen which prevents the collapsing and damming of the water flow through the rain screen and reduces or eliminates compression of the rain screen, which prevents water flow. For example, the drainage screed may include a trough design at the second portion of the drainage leg that holds the siding with perforations to drain water from under the board and allows water to drain directly down under the wall and through the drainage slots in the first portion of the drainage leg. Further, the drainage screed may include a different drainage slot configuration through the lip and a drip edge that diverts moisture away from the wall. The lip may include the small nub or protrusion to align the first course evenly and the nub or protrusion may have down draft to prevent accumulation of water.

The drainage screed, associated wall drainage system, and method of installation at the wall structure may include characteristics of the screeds and drainage systems described in U.S. Pat. Nos. 10,494,818; 10,731,335; 11,180,913; 10,774,545; 10,669,721; 11,639,603; 10,731,354 and/or U.S. Pat. Pub. Nos. US-2022-0205250 and/or US-2022-0074196, which are all hereby incorporated herein by reference in their entireties.

The drainage screed may include one or more adhesive elements or attachment elements, such as a double-sided tape or glue or the like, for attaching the ventilation screed at the wall structure during installation. For example, the attachment element may be disposed at the rear side of the attachment flange for attaching the drainage screed at the wall structure. Thus, the self-adhering drainage screed reduces or eliminates the need for additional fasteners, such as nails and screws, and prevents nail holes through the wall structure. In other words, attachment of the drainage screed may utilize the nail holes through the attachment flange, or one or more adhesive elements or tapes may be applied to the back of the attachment flange to adhere the drainage screed to the wall to prevent nail penetration through the wall, which can cause water intrusion. The ventilation screed and attachment element may include characteristics of the devices described in U.S. Pat. No. 9,279,247 and/or U.S. Publication No. US-2023-0374791, which are hereby incorporated herein by reference in their entireties.

Changes and modifications in the specifically described embodiments can be carried out without departing from the principles of the invention, which is intended to be limited only by the scope of the appended claims, as interpreted according to the principles of patent law including the doctrine of equivalents.

Claims

1. A drainage screed, the drainage screed comprising: an attachment flange configured for attachment at a wall structure;a drainage leg, wherein, with the attachment flange attached at the wall structure, the drainage leg extends from a lower edge region of the attachment flange;a lip that extends from the drainage leg and at least partially along the attachment flange, wherein the lip extends from the drainage leg at a location along the drainage leg that is between (i) the attachment flange and (ii) a distal end of the drainage leg distal from the attachment flange;wherein a first portion of the drainage leg extends between the attachment flange and the lip, and wherein a second portion of the drainage leg extends between the lip and the distal end of the drainage leg; andwherein a first drainage hole extends through one selected from the group consisting of (i) the first portion of the drainage leg and (ii) the lip, and wherein, with the attachment flange attached at the wall structure, the first portion of the drainage leg extends downward toward the first drainage hole to promote drainage through the first drainage hole.

2. The drainage screed of claim 1, wherein the attachment flange includes a first side and a second side opposite the first side, and wherein, with the attachment flange attached at the wall structure, the second side faces the wall structure, and wherein the drainage leg extends away from the first side of the attachment flange.

3. The drainage screed of claim 2, wherein the lip extends at least partially along the first side of the attachment flange.

4. The drainage screed of claim 1, wherein a plurality of first drainage holes extend through the one selected from the group consisting of (i) the first portion of the drainage leg and (ii) the lip.

5. The drainage screed of claim 1, wherein the first drainage hole extends through the first portion of the drainage leg.

6. The drainage screed of claim 5, wherein the first drainage hole is spaced from the attachment flange and the lip, and wherein, with the attachment flange attached at the wall structure, part of the first portion of the drainage leg extends downward from the attachment flange toward the first drainage hole and another part of the first portion of the drainage leg extends downward from the lip toward the first drainage hole.

7. The drainage screed of claim 6, wherein the first portion of the drainage leg is curved, and wherein the first drainage hole extends through a lower most point of the curved first portion of the drainage leg.

8. The drainage screed of claim 1, wherein the first drainage hole comprises an elongated slot.

9. The drainage screed of claim 1, wherein a second drainage hole extends through the second portion of the drainage leg.

10. The drainage screed of claim 9, wherein, with the attachment flange attached at the wall structure, the second portion of the drainage leg extends downward toward the second drainage hole to promote drainage through the second drainage hole.

11. The drainage screed of claim 10, wherein the second drainage hole is spaced from the lip and the distal end of the drainage leg, and wherein, with the attachment flange attached at the wall structure, part of the second portion of the drainage leg extends downward from the lip toward the second drainage hole and another part of the second portion of the drainage leg extends downward from the distal end of the drainage leg toward the second drainage hole.

12. The drainage screed of claim 11, wherein the second portion of the drainage leg is curved, and wherein the second drainage hole extends through a lower most point of the curved second portion of the drainage leg.

13. The drainage screed of claim 9, wherein the second drainage hole comprises a circular hole.

14. The drainage screed of claim 1, wherein the lip extends from the drainage leg and partially toward the attachment flange.

15. The drainage screed of claim 1, wherein a protrusion extends from the distal end of the drainage leg.

16. The drainage screed of claim 1, wherein the first drainage hole extends through the lip.

17. The drainage screed of claim 16, wherein moisture flows across the first portion of the drainage leg, through the first drainage hole and across the second portion of the drainage leg.

18. The drainage screed of claim 1, wherein the wall structure comprises a vertical wall structure.

19. A drainage screed, the drainage screed comprising: an attachment flange configured for attachment at a wall structure;a drainage leg, wherein, with the attachment flange attached at the wall structure, the drainage leg extends from a lower edge region of the attachment flange;a lip that extends from the drainage leg and at least partially along the attachment flange, wherein the lip extends partially toward the attachment flange, and wherein the lip extends from the drainage leg at a location along the drainage leg that is between (i) the attachment flange and (ii) a distal end of the drainage leg distal from the attachment flange;wherein a first portion of the drainage leg extends between the attachment flange and the lip, and wherein a second portion of the drainage leg extends between the lip and the distal end of the drainage leg;wherein a first drainage hole extends through the first portion of the drainage leg, and wherein the first drainage hole is spaced from the attachment flange and the lip; andwherein, with the attachment flange attached at the wall structure, part of the first portion of the drainage leg extends downward from the attachment flange toward the first drainage hole and another part of the first portion of the drainage leg extends downward from the lip toward the first drainage hole to promote drainage through the first drainage hole.

20. The drainage screed of claim 19, wherein the first portion of the drainage leg is curved, and wherein the first drainage hole extends through a lower most point of the curved first portion of the drainage leg.

21. The drainage screed of claim 19, wherein the first drainage hole comprises an elongated slot.

22. The drainage screed of claim 19, wherein a second drainage hole extends through the second portion of the drainage leg.

23. A drainage screed, the drainage screed comprising: an attachment flange configured for attachment at a wall structure;a drainage leg, wherein, with the attachment flange attached at the wall structure, the drainage leg extends from a lower edge region of the attachment flange;a lip that extends from the drainage leg and at least partially along the attachment flange, wherein the lip extends from the drainage leg at a location along the drainage leg that is between (i) the attachment flange and (ii) a distal end of the drainage leg distal from the attachment flange;wherein a first portion of the drainage leg extends between the attachment flange and the lip, and wherein a second portion of the drainage leg extends between the lip and the distal end of the drainage leg;wherein a protrusion extends from the distal end of the drainage leg, and wherein, with the attachment flange attached at the wall structure, the protrusion extends downward from the distal end of the drainage leg and away from the attachment flange; andwherein a first drainage hole extends through the lip and a second drainage hole extends through the second portion of the drainage leg, and wherein, with the attachment flange attached at the wall structure, the first portion of the drainage leg extends downward toward the first drainage hole to promote drainage through the first drainage hole so that moisture flows across the first portion of the drainage leg, through the second drainage hole and across the second portion of the drainage leg and the protrusion extending from the distal end of the drainage leg.

24. The drainage screed of claim 23, wherein, with the attachment flange attached at the wall structure, the second portion of the drainage leg extends downward toward the second drainage hole to promote drainage through the second drainage hole.

25. The drainage screed of claim 23, wherein the lip extends from the drainage leg and partially toward the attachment flange.