Below top of wall ventilation screed device and assembly
View Patent ↗A ventilation screed having an upper attachment flange having a top portion and a bottom portion and at least one opening in the top portion; a drip edge protruding from the bottom portion of the upper attachment flange; a drainage cavity protrusion protruding from the bottom portion of the upper attachment flange above the drip edge, wherein the drainage cavity has an L-shaped drainage trough portion having at least one drainage opening in a bottom portion, an upper ground portion in communication with the L-shaped drainage trough portion and a drainage cavity shroud in communication with the upper ground portion, wherein the drainage cavity shroud extends past the drip edge.
1. A ventilation screed comprising:
an upper attachment flange having a top portion and a bottom portion and at least one opening in the top portion;
a drip edge protruding from the bottom portion of the upper attachment flange;
a drainage cavity protrusion protruding from the bottom portion of the upper 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 vertical portion and being substantially perpendicular to the substantially vertical portion and a drainage cavity shroud extending substantially downward from the upper ground portion, wherein the drainage cavity shroud extends past the drip edge.
2. A ventilation screed as in claim 1 , wherein the drip edge is angled downward in a direction away from the upper attachment flange.
3. A ventilation screed as in claim 1 , wherein the drip edge has a shaped end selected from the group consisting of angled edge, rounded edge and rectangular edge.
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 upper attachment flange, the L-shaped drainage trough portion, the drip edge and the drainage cavity.
5. A ventilation screed as in claim 1 , further comprising a 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 5 , further comprising a lower attachment flange in communication with the second end of the return leg.
9. A ventilation screed as in claim 5 , wherein the middle portion of the return leg has two backward L-shaped ground portions.
10. A ventilation screed as in claim 8 , wherein the lower attachment flange has at least one opening.
11. A ventilation screed as in claim 10 , wherein the lower attachment flange has at least three rows of circular openings.
12. A ventilation screed as in claim 1 , further comprising a connector between two adjacent ventilation screeds.
13. A ventilation screed as in claim 12 , wherein the connector is a three sided connector that is smaller than and sits in a space between the drainage cavity protrusion and the drip edge and has openings that align with the at least one drainage opening in a bottom portion of the drainage cavity protrusion.
14. A ventilation screed as in claim 1 , further comprising a screen parallel to at least a portion of the upper attachment flange.
15. A ventilation screed as in claim 1 , further comprising a mesh parallel to at least a portion of the upper attachment flange.
16. A ventilation screed as in claim 1 , further comprising a reticulated foam insert that installed is parallel to and between siding and the upper attachment flange portion.
17. A ventilation screed as in claim 16 , further comprising a joint connector, 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.
18. A ventilation screed as in claim 11 , the at least three rows of circular openings each having alternating larger openings and smaller openings and each row is offset from the row below it.
19. A ventilation screed as in claim 1 , further comprising a planar vertical element extending from the upper ground portion, wherein the planar vertical element is substantially parallel to the upper attachment flange.
20. A ventilation screed as in claim 1 , further comprising an insect screen in the L-shaped drainage trough portion.
21. A ventilation screed as in claim 1 , wherein the drainage opening is located where the drainage cavity protrusion meets the upper attachment flange.