Below top of wall ventilation screed device and assembly

1. A ventilation screed comprising:

an attachment flange having a top portion and a bottom portion;

a drip edge protruding from the attachment flange and a return leg that protrudes back from the drip edge, wherein the drip edge is angled downward in a first direction and the return leg is angled downward in a second direction; and

a drainage cavity protrusion protruding from the attachment flange above the drip edge, wherein the drainage cavity protrusion has an L-shaped drainage trough portion having at least one drainage opening in a bottom portion and a substantially vertical portion with a top end and a bottom end in communication with the bottom portion, an upper ground portion in communication with the top end of the substantially vertical portion of the L-shaped drainage trough portion extending outward from the substantially vertical portion and a drainage cavity shroud extending substantially downward from the upper ground portion.

2. A ventilation screed as in claim 1 , wherein the drip edge is angled downward in a direction away from the attachment flange.

3. A ventilation screed as in claim 1 , wherein the drip edge has a downward bend.

4. A ventilation screed as in claim 1 , further comprising at least one rounded edge friction bead along a portion of at least one of the attachment flange, the upper ground portion, the L-shaped drainage trough portion, the drip edge and the drainage cavity protrusion.

5. A ventilation screed as in claim 1 , the return leg having a first end, a middle portion and a second end, wherein the first end is in communication with a far end of the drip edge.

6. A ventilation screed as in claim 5 , wherein the second end has a downward bend.

7. A ventilation screed as in claim 5 , wherein the return leg slopes downwardly from the first end to the second end.

8. A ventilation screed as in claim 1 , further comprising a joint connector between two adjacent ventilation screeds.

9. A ventilation screed as in claim 1 , further comprising a screen parallel to at least a portion of the attachment flange.

10. A ventilation screed as in claim 1 , further comprising a mesh parallel to at least a portion of the attachment flange.

11. A ventilation screed as in claim 1 , further comprising a reticulated foam insert that installed is parallel to and between siding and at least a portion of the attachment flange.

12. A ventilation screed as in claim 8 , wherein a left portion of the joint connector sits in a first ventilation screed and a right portion of the joint connector sits in a second ventilation screed and the second ventilation screed is adjacent to the first ventilation screed.

13. A ventilation screed as in claim 1 , further comprising an insect screen in the L-shaped drainage trough portion.

14. A ventilation screed as in claim 1 , wherein the drainage opening is located where the drainage cavity protrusion meets the attachment flange.

15. A ventilation screed as in claim 1 , wherein the upper ground portion is substantially perpendicular to the substantially vertical portion.

16. A ventilation screed as in claim 1 , wherein the bottom portion of the L-shaped drainage trough portion slopes downwardly towards the bottom portion of the attachment flange.

17. A ventilation screed as in claim 1 , wherein the drainage cavity shroud extends past the drip edge.